Zmiana na pythona

.idea/inspectionProfiles/profiles_settings.xml

@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>

.idea/misc.xml

@@ -3,4 +3,5 @@
   <component name="JavaScriptSettings">
     <option name="languageLevel" value="ES6" />
   </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (wozek)" project-jdk-type="Python SDK" />
 </project>

.idea/modules.xml

@@ -2,7 +2,7 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/AL-2020.iml" filepath="$PROJECT_DIR$/.idea/AL-2020.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/wozek.iml" filepath="$PROJECT_DIR$/.idea/wozek.iml" />
     </modules>
   </component>
 </project>

.idea/workspace.xml

@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="828778c9-9d97-422f-a727-18ddbd059b85" name="Default Changelist" comment="" />
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Python Script" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectId" id="1blUxWbA3VMjMFjk8gUnLGMgAoU" />
+  <component name="PropertiesComponent">
+    <property name="WebServerToolWindowFactoryState" value="false" />
+    <property name="restartRequiresConfirmation" value="false" />
+  </component>
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="RunManager" selected="Python.main">
+    <configuration name="board" type="PythonConfigurationType" factoryName="Python" temporary="true">
+      <module name="wozek" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
+      </envs>
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/board.py" />
+      <option name="PARAMETERS" value="" />
+      <option name="SHOW_COMMAND_LINE" value="false" />
+      <option name="EMULATE_TERMINAL" value="false" />
+      <option name="MODULE_MODE" value="false" />
+      <option name="REDIRECT_INPUT" value="false" />
+      <option name="INPUT_FILE" value="" />
+      <method v="2" />
+    </configuration>
+    <configuration name="main" type="PythonConfigurationType" factoryName="Python" temporary="true">
+      <module name="wozek" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
+      </envs>
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/main.py" />
+      <option name="PARAMETERS" value="" />
+      <option name="SHOW_COMMAND_LINE" value="false" />
+      <option name="EMULATE_TERMINAL" value="false" />
+      <option name="MODULE_MODE" value="false" />
+      <option name="REDIRECT_INPUT" value="false" />
+      <option name="INPUT_FILE" value="" />
+      <method v="2" />
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="Python.main" />
+        <item itemvalue="Python.board" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="828778c9-9d97-422f-a727-18ddbd059b85" name="Default Changelist" comment="" />
+      <created>1589206421672</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1589206421672</updated>
+      <workItem from="1589206439279" duration="11691000" />
+      <workItem from="1589233530634" duration="769000" />
+      <workItem from="1589543001064" duration="78000" />
+      <workItem from="1589543305930" duration="10474000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+  <component name="com.intellij.coverage.CoverageDataManagerImpl">
+    <SUITE FILE_PATH="coverage/wozek$board.coverage" NAME="board Coverage Results" MODIFIED="1589210811600" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+    <SUITE FILE_PATH="coverage/wozek$main.coverage" NAME="main Coverage Results" MODIFIED="1589556038208" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+  </component>
+</project>

.idea/wozek.iml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/venv" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+  <component name="TestRunnerService">
+    <option name="PROJECT_TEST_RUNNER" value="Unittests" />
+  </component>
+</module>

Archiwum/.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+</project>

Archiwum/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/AL-2020.iml" filepath="$PROJECT_DIR$/.idea/AL-2020.iml" />
+    </modules>
+  </component>
+</project>

agent.py

@@ -0,0 +1,63 @@
+import pygame
+
+
+class Agent:
+
+    def __init__(self, screen, position_x, position_y, turn):
+        self.screen = screen
+        self.position_x = position_x
+        self.position_y = position_y
+        self.turn = turn
+        self.x = (self.position_x - 50) // 100
+        self.y = (self.position_y - 50) // 100
+
+        self.image = pygame.image.load('img/' + turn + '.png')
+        self.rect = self.image.get_rect()
+        self.screen_rect = screen.get_rect()
+
+        self.rect.center = (position_x, position_y)
+
+    def blitme(self):
+        self.screen.blit(self.image, self.rect)
+
+    def turn_left(self):
+        if self.turn == "Up":
+            self.turn = "Left"
+        elif self.turn == "Left":
+            self.turn = "Down"
+        elif self.turn == "Down":
+            self.turn = "Right"
+        elif self.turn == "Right":
+            self.turn = "Up"
+        self.image = pygame.image.load('img/' + self.turn + '.png')
+
+    def turn_right(self):
+        if self.turn == "Up":
+            self.turn = "Right"
+        elif self.turn == "Left":
+            self.turn = "Up"
+        elif self.turn == "Down":
+            self.turn = "Left"
+        elif self.turn == "Right":
+            self.turn = "Down"
+        self.image = pygame.image.load('img/' + self.turn + '.png')
+
+    def move_forward(self, board):
+        if self.turn == "Up" and self.position_y > 50 and board[(self.position_y - 100) // 100][self.position_x // 100]. \
+                is_shelf == False:
+            self.position_y -= 100
+            self.y -= 1
+        elif self.turn == "Left" and self.position_x > 50 and board[self.position_y // 100][(self.position_x - 100) // 100].\
+                is_shelf == False:
+            self.position_x -= 100
+            self.x -= 1
+        elif self.turn == "Down" and self.position_y < 950 and board[(self.position_y + 100) // 100][self.position_x // 100]. \
+                is_shelf == False:
+            self.position_y += 100
+            self.y += 1
+        elif self.turn == "Right" and self.position_x < 950 and board[self.position_y // 100][(self.position_x + 100) // 100].\
+                is_shelf == False:
+            self.position_x += 100
+            self.x += 1
+        self.rect.center = (self.position_x, self.position_y)
+

board.py

@@ -0,0 +1,48 @@
+import pygame
+from settings import Settings
+from field import Field
+
+settings = Settings()
+
+
+def create_board(screen):
+    board = []
+    shelfs = [(250, 150), (250, 250), (450, 150), (450, 250), (650, 150), (650, 250), (850, 150), (850, 250),
+              (250, 450), (350, 450), (750, 450), (850, 450),
+              (250, 650), (250, 750), (450, 650), (450, 750), (650, 650), (650, 750), (850, 650), (850, 750)]
+
+    for y in range(settings.y_fields):
+        row = []
+        for x in range(settings.x_fields):
+            field = Field(screen, x, y, 50 + x * 100, 50 + y * 100, False, False, 1)
+            for shelf in shelfs:
+                if field.center_x == shelf[0] and field.center_y == shelf[1]:
+                    field.is_shelf = True
+                    field.image = pygame.image.load('img/shelf.png')
+
+            row.append(field)
+        board.append(row)
+    for row in board:
+        for field in row:
+            field.add_neighbors(board)
+
+    for row in board:
+        for field in row:
+            if field.x > 0 and board[field.y][field.x - 1].is_shelf:
+                field.cost_of_travel += 1
+            if field.x < 9 and board[field.y][field.x + 1].is_shelf:
+                field.cost_of_travel += 1
+            if field.y > 0 and board[field.y - 1][field.x].is_shelf:
+                field.cost_of_travel += 1
+            if field.y < 9 and board[field.y + 1][field.x].is_shelf:
+                field.cost_of_travel += 1
+
+    return board
+
+
+def draw_board(board):
+    for row in board:
+        for field in row:
+            field.blitme()
+
+

field.py

@@ -0,0 +1,44 @@
+import pygame
+
+
+class Field:
+
+    def __init__(self, screen, x, y, center_x, center_y, is_shelf, is_occupied_by_agent, cost_of_travel):
+        # Jakieś podstawowe rzeczy
+        self.screen = screen
+        self.x = x
+        self.y = y
+        self.center_x = center_x
+        self.center_y = center_y
+        self.is_shelf = is_shelf
+        self.is_occupied_by_agent = is_occupied_by_agent
+        self.cost_of_travel = cost_of_travel
+        self.neighbors = []
+
+        # Te parametry są potrzebne do algorytmu A*
+        self.g = 0
+        self.h = 0
+        self.f = 0
+        self.previous = None
+
+        # Te rzeczy są potrzebne do wyświetlenia pola
+        self.image = pygame.image.load('img/Field.png')
+        self.rect = self.image.get_rect()
+        self.screen_rect = screen.get_rect()
+
+        self.rect.center = (center_x, center_y)
+
+
+    # Metoda do wyświetlania pola na ekranie
+    def blitme(self):
+        self.screen.blit(self.image, self.rect)
+
+    def add_neighbors(self, board):
+        if self.x > 0 and board[self.y][self.x - 1].is_shelf == False:
+            self.neighbors.append(board[self.y][self.x - 1])
+        if self.x < 9 and board[self.y][self.x + 1].is_shelf == False:
+            self.neighbors.append(board[self.y][self.x + 1])
+        if self.y > 0 and board[self.y - 1][self.x].is_shelf == False:
+            self.neighbors.append(board[self.y - 1][self.x])
+        if self.y < 9 and board[self.y + 1][self.x].is_shelf == False:
+            self.neighbors.append(board[self.y + 1][self.x])

functions.py

@@ -0,0 +1,136 @@
+import sys
+import pygame
+
+from settings import Settings
+from agent import Agent
+from board import draw_board
+
+
+def check_events(agent, board):
+    for event in pygame.event.get():
+        if event.type == pygame.QUIT:
+            sys.exit()
+
+        elif event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_RIGHT:
+                agent.turn_right()
+            elif event.key == pygame.K_LEFT:
+                agent.turn_left()
+            elif event.key == pygame.K_UP:
+                agent.move_forward(board)
+            elif event.key == pygame.K_SPACE:
+                a_star(board[0][0], board[5][5])
+
+
+def update_screen(board, screen, agent):
+    draw_board(board)
+    agent.blitme()
+
+    pygame.display.flip()
+
+
+def get_distance(field, goal_field):
+    d = abs(field.x - goal_field.x) + abs(field.y - goal_field.y)
+    return d
+
+
+def a_star(start_field, goal_field, board):
+    closed_set = []
+    open_set = []
+    path = []
+
+    open_set.append(start_field)
+    # start_field.image = pygame.image.load('img/green.png')
+
+    while len(open_set) > 0:
+        winner = 0
+
+        for i in range(len(open_set)):
+            if open_set[i].f < open_set[winner].f:
+                winner = i
+
+        current = open_set[winner]
+
+        if current == goal_field:
+            temp = current
+            path.append(current)
+
+            while temp.previous is not None:
+                path.append(temp.previous)
+                temp = temp.previous
+
+            for field in path:
+                field.image = pygame.image.load('img/path.png')
+
+            for row in board:
+                for field in row:
+                    field.g = 0
+                    field.h = 0
+                    field.f = 0
+
+            return path
+
+        open_set.remove(current)
+        closed_set.append(current)
+        # current.image = pygame.image.load('img/red.png')
+        neighbors = current.neighbors
+
+        for neighbor in neighbors:
+            if neighbor not in closed_set:
+                temp_g = current.g + neighbor.cost_of_travel
+
+                if neighbor in open_set:
+                    if temp_g < neighbor.g:
+                        neighbor.g = temp_g
+                else:
+                    neighbor.g = temp_g
+                    open_set.append(neighbor)
+                    # neighbor.image = pygame.image.load('img/green.png')
+
+                neighbor.h = get_distance(neighbor, goal_field)
+                neighbor.f = neighbor.g + neighbor.h
+
+                neighbor.previous = current
+
+
+def check_turn(agent, next_field):
+    if agent.y == next_field.y and next_field.x == agent.x + 1 and agent.turn == "Right":
+        return True
+    elif agent.y == next_field.y and next_field.x == agent.x - 1 and agent.turn == "Left":
+        return True
+    elif agent.x == next_field.x and next_field.y == agent.y + 1 and agent.turn == "Down":
+        return True
+    elif agent.x == next_field.x and next_field.y == agent.y - 1 and agent.turn == "Up":
+        return True
+    else:
+        return False
+
+
+def change_turn(agent, next_field):
+    if agent.y == next_field.y and next_field.x == agent.x + 1 and agent.turn == "Up":
+        agent.turn_right()
+    elif agent.y == next_field.y and next_field.x == agent.x + 1 and agent.turn == "Down":
+        agent.turn_left()
+    elif agent.y == next_field.y and next_field.x == agent.x + 1 and agent.turn == "Left":
+        agent.turn_left()
+    elif agent.y == next_field.y and next_field.x == agent.x - 1 and agent.turn == "Up":
+        agent.turn_left()
+    elif agent.y == next_field.y and next_field.x == agent.x - 1 and agent.turn == "Down":
+        agent.turn_right()
+    elif agent.y == next_field.y and next_field.x == agent.x - 1 and agent.turn == "Right":
+        agent.turn_right()
+    elif agent.x == next_field.x and next_field.y == agent.y + 1 and agent.turn == "Right":
+        agent.turn_right()
+    elif agent.x == next_field.x and next_field.y == agent.y + 1 and agent.turn == "Left":
+        agent.turn_left()
+    elif agent.x == next_field.x and next_field.y == agent.y + 1 and agent.turn == "Up":
+        agent.turn_left()
+    elif agent.x == next_field.x and next_field.y == agent.y - 1 and agent.turn == "Right":
+        agent.turn_left()
+    elif agent.x == next_field.x and next_field.y == agent.y - 1 and agent.turn == "Left":
+        agent.turn_right()
+    elif agent.x == next_field.x and next_field.y == agent.y - 1 and agent.turn == "Down":
+        agent.turn_right()
+
+
+

main.py

@@ -0,0 +1,61 @@
+import pygame
+import functions
+import sys
+import time
+
+from agent import Agent
+from settings import Settings
+from board import create_board, draw_board
+
+
+# Inicjalizacja programu i utworzenie obiektu ekrany
+def run():
+    pygame.init()
+    settings = Settings()
+    screen = pygame.display.set_mode((settings.screen_width, settings.screen_height))
+    pygame.display.set_caption("Inteligentny wózek widłowy")
+    agent = Agent(screen, 50, 50, "Down")
+    board = create_board(screen)
+
+    for row in board:
+        for field in row:
+            print(field.cost_of_travel)
+
+    path = functions.a_star(board[agent.y][agent.x], board[5][7], board)
+    path.pop(len(path) - 1)
+    next_step = path.pop(len(path) - 1)
+    # Rozpoczęcie głównej pętli programu
+    while True:
+        # functions.check_events(agent, board)
+        # functions.update_screen(board, screen, agent)
+        #
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                sys.exit()
+            elif event.type == pygame.KEYDOWN:
+                if event.key == pygame.K_RIGHT:
+                    agent.turn_right()
+                elif event.key == pygame.K_LEFT:
+                    agent.turn_left()
+                elif event.key == pygame.K_UP:
+                    agent.move_forward(board)
+
+        if len(path) >= 0:
+            time.sleep(0.5)
+            if functions.check_turn(agent, next_step):
+                agent.move_forward(board)
+                if len(path) != 0:
+                    next_step = path.pop()
+            else:
+                functions.change_turn(agent, next_step)
+            print(agent.position_x, agent.position_y)
+
+
+
+        draw_board(board)
+        agent.blitme()
+
+        pygame.display.flip()
+
+
+run()

settings.py

@@ -0,0 +1,9 @@
+class Settings():
+    def __init__(self):
+        self.field_width = 100
+        self.field_height = 100
+        self.x_fields = 10
+        self.y_fields = 10
+        self.screen_width = self.field_width * self.x_fields
+        self.screen_height = self.field_height * self.y_fields
+        self.bg_color = (255, 255, 255)

venv/Include/site/python3.7/pygame/_camera.h

@@ -0,0 +1,27 @@
+/*
+  pygame - Python Game Library
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not, write to the Free
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+
+#ifndef _CAMERA_H
+#define _CAMERA_H
+
+#include "_pygame.h"
+#include "camera.h"
+
+#endif
+

venv/Include/site/python3.7/pygame/_pygame.h

@@ -0,0 +1,864 @@
+/*
+    pygame - Python Game Library
+    Copyright (C) 2000-2001  Pete Shinners
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Pete Shinners
+    pete@shinners.org
+*/
+
+#ifndef _PYGAME_H
+#define _PYGAME_H
+
+/** This header file includes all the definitions for the
+ ** base pygame extensions. This header only requires
+ ** SDL and Python includes. The reason for functions
+ ** prototyped with #define's is to allow for maximum
+ ** python portability. It also uses python as the
+ ** runtime linker, which allows for late binding. For more
+ ** information on this style of development, read the Python
+ ** docs on this subject.
+ ** http://www.python.org/doc/current/ext/using-cobjects.html
+ **
+ ** If using this to build your own derived extensions,
+ ** you'll see that the functions available here are mainly
+ ** used to help convert between python objects and SDL objects.
+ ** Since this library doesn't add a lot of functionality to
+ ** the SDL libarary, it doesn't need to offer a lot either.
+ **
+ ** When initializing your extension module, you must manually
+ ** import the modules you want to use. (this is the part about
+ ** using python as the runtime linker). Each module has its
+ ** own import_xxx() routine. You need to perform this import
+ ** after you have initialized your own module, and before
+ ** you call any routines from that module. Since every module
+ ** in pygame does this, there are plenty of examples.
+ **
+ ** The base module does include some useful conversion routines
+ ** that you are free to use in your own extension.
+ **
+ ** When making changes, it is very important to keep the
+ ** FIRSTSLOT and NUMSLOT constants up to date for each
+ ** section. Also be sure not to overlap any of the slots.
+ ** When you do make a mistake with this, it will result
+ ** is a dereferenced NULL pointer that is easier to diagnose
+ ** than it could be :]
+ **/
+#if defined(HAVE_SNPRINTF) /* defined in python.h (pyerrors.h) and SDL.h \
+                              (SDL_config.h) */
+#undef HAVE_SNPRINTF       /* remove GCC redefine warning */
+#endif
+
+// This must be before all else
+#if defined(__SYMBIAN32__) && defined(OPENC)
+#include <sys/types.h>
+
+#if defined(__WINS__)
+void *
+_alloca(size_t size);
+#define alloca _alloca
+#endif
+#endif
+
+#define PG_STRINGIZE_HELPER(x) #x
+#define PG_STRINGIZE(x) PG_STRINGIZE_HELPER(x)
+#define PG_WARN(desc) message(__FILE__ "(" PG_STRINGIZE(__LINE__) "): WARNING: " #desc)
+
+/* This is unconditionally defined in Python.h */
+#if defined(_POSIX_C_SOURCE)
+#undef _POSIX_C_SOURCE
+#endif
+
+#include <Python.h>
+
+/* the version macros are defined since version 1.9.5 */
+#define PG_MAJOR_VERSION 1
+#define PG_MINOR_VERSION 9
+#define PG_PATCH_VERSION 6
+#define PG_VERSIONNUM(MAJOR, MINOR, PATCH) (1000*(MAJOR) + 100*(MINOR) + (PATCH))
+#define PG_VERSION_ATLEAST(MAJOR, MINOR, PATCH)                             \
+    (PG_VERSIONNUM(PG_MAJOR_VERSION, PG_MINOR_VERSION, PG_PATCH_VERSION) >= \
+     PG_VERSIONNUM(MAJOR, MINOR, PATCH))
+
+/* Cobjects vanish in Python 3.2; so we will code as though we use capsules */
+#if defined(Py_CAPSULE_H)
+#define PG_HAVE_CAPSULE 1
+#else
+#define PG_HAVE_CAPSULE 0
+#endif
+#if defined(Py_COBJECT_H)
+#define PG_HAVE_COBJECT 1
+#else
+#define PG_HAVE_COBJECT 0
+#endif
+#if !PG_HAVE_CAPSULE
+#define PyCapsule_New(ptr, n, dfn) PyCObject_FromVoidPtr(ptr, dfn)
+#define PyCapsule_GetPointer(obj, n) PyCObject_AsVoidPtr(obj)
+#define PyCapsule_CheckExact(obj) PyCObject_Check(obj)
+#endif
+
+/* Pygame uses Py_buffer (PEP 3118) to exchange array information internally;
+ * define here as needed.
+ */
+#if !defined(PyBUF_SIMPLE)
+typedef struct bufferinfo {
+    void *buf;
+    PyObject *obj;
+    Py_ssize_t len;
+    Py_ssize_t itemsize;
+    int readonly;
+    int ndim;
+    char *format;
+    Py_ssize_t *shape;
+    Py_ssize_t *strides;
+    Py_ssize_t *suboffsets;
+    void *internal;
+} Py_buffer;
+
+/* Flags for getting buffers */
+#define PyBUF_SIMPLE 0
+#define PyBUF_WRITABLE 0x0001
+/*  we used to include an E, backwards compatible alias  */
+#define PyBUF_WRITEABLE PyBUF_WRITABLE
+#define PyBUF_FORMAT 0x0004
+#define PyBUF_ND 0x0008
+#define PyBUF_STRIDES (0x0010 | PyBUF_ND)
+#define PyBUF_C_CONTIGUOUS (0x0020 | PyBUF_STRIDES)
+#define PyBUF_F_CONTIGUOUS (0x0040 | PyBUF_STRIDES)
+#define PyBUF_ANY_CONTIGUOUS (0x0080 | PyBUF_STRIDES)
+#define PyBUF_INDIRECT (0x0100 | PyBUF_STRIDES)
+
+#define PyBUF_CONTIG (PyBUF_ND | PyBUF_WRITABLE)
+#define PyBUF_CONTIG_RO (PyBUF_ND)
+
+#define PyBUF_STRIDED (PyBUF_STRIDES | PyBUF_WRITABLE)
+#define PyBUF_STRIDED_RO (PyBUF_STRIDES)
+
+#define PyBUF_RECORDS (PyBUF_STRIDES | PyBUF_WRITABLE | PyBUF_FORMAT)
+#define PyBUF_RECORDS_RO (PyBUF_STRIDES | PyBUF_FORMAT)
+
+#define PyBUF_FULL (PyBUF_INDIRECT | PyBUF_WRITABLE | PyBUF_FORMAT)
+#define PyBUF_FULL_RO (PyBUF_INDIRECT | PyBUF_FORMAT)
+
+#define PyBUF_READ 0x100
+#define PyBUF_WRITE 0x200
+#define PyBUF_SHADOW 0x400
+
+typedef int (*getbufferproc)(PyObject *, Py_buffer *, int);
+typedef void (*releasebufferproc)(Py_buffer *);
+#endif /* #if !defined(PyBUF_SIMPLE) */
+
+/* Flag indicating a pg_buffer; used for assertions within callbacks */
+#ifndef NDEBUG
+#define PyBUF_PYGAME 0x4000
+#endif
+
+#define PyBUF_HAS_FLAG(f, F) (((f) & (F)) == (F))
+
+/* Array information exchange struct C type; inherits from Py_buffer
+ *
+ * Pygame uses its own Py_buffer derived C struct as an internal representation
+ * of an imported array buffer. The extended Py_buffer allows for a
+ * per-instance release callback,
+ */
+typedef void (*pybuffer_releaseproc)(Py_buffer *);
+
+typedef struct pg_bufferinfo_s {
+    Py_buffer view;
+    PyObject *consumer; /* Input: Borrowed reference */
+    pybuffer_releaseproc release_buffer;
+} pg_buffer;
+
+/* Operating system specific adjustments
+ */
+// No signal()
+#if defined(__SYMBIAN32__) && defined(HAVE_SIGNAL_H)
+#undef HAVE_SIGNAL_H
+#endif
+
+#if defined(HAVE_SNPRINTF)
+#undef HAVE_SNPRINTF
+#endif
+
+#ifdef MS_WIN32 /*Python gives us MS_WIN32, SDL needs just WIN32*/
+#ifndef WIN32
+#define WIN32
+#endif
+#endif
+
+/// Prefix when initializing module
+#define MODPREFIX ""
+/// Prefix when importing module
+#define IMPPREFIX "pygame."
+
+#ifdef __SYMBIAN32__
+#undef MODPREFIX
+#undef IMPPREFIX
+// On Symbian there is no pygame package. The extensions are built-in or in
+// sys\bin.
+#define MODPREFIX "pygame_"
+#define IMPPREFIX "pygame_"
+#endif
+
+#include <SDL.h>
+
+/* Pygame's SDL version macros:
+ *   IS_SDLv1 is 1 if SDL 1.x.x, 0 otherwise
+ *   IS_SDLv2 is 1 if at least SDL 2.0.0, 0 otherwise
+ */
+#if (SDL_VERSION_ATLEAST(2, 0, 0))
+#define IS_SDLv1 0
+#define IS_SDLv2 1
+#else
+#define IS_SDLv1 1
+#define IS_SDLv2 0
+#endif
+
+/*#if IS_SDLv1 && PG_MAJOR_VERSION >= 2
+#error pygame 2 requires SDL 2
+#endif*/
+
+#if IS_SDLv2
+/* SDL 1.2 constants removed from SDL 2 */
+typedef enum {
+    SDL_HWSURFACE = 0,
+    SDL_RESIZABLE = SDL_WINDOW_RESIZABLE,
+    SDL_ASYNCBLIT = 0,
+    SDL_OPENGL = SDL_WINDOW_OPENGL,
+    SDL_OPENGLBLIT = 0,
+    SDL_ANYFORMAT = 0,
+    SDL_HWPALETTE = 0,
+    SDL_DOUBLEBUF = 0,
+    SDL_FULLSCREEN = SDL_WINDOW_FULLSCREEN,
+    SDL_HWACCEL = 0,
+    SDL_SRCCOLORKEY = 0,
+    SDL_RLEACCELOK = 0,
+    SDL_SRCALPHA = 0,
+    SDL_NOFRAME = SDL_WINDOW_BORDERLESS,
+    SDL_GL_SWAP_CONTROL = 0,
+    TIMER_RESOLUTION = 0
+} PygameVideoFlags;
+
+/* the wheel button constants were removed from SDL 2 */
+typedef enum {
+    PGM_BUTTON_LEFT = SDL_BUTTON_LEFT,
+    PGM_BUTTON_RIGHT = SDL_BUTTON_RIGHT,
+    PGM_BUTTON_MIDDLE = SDL_BUTTON_MIDDLE,
+    PGM_BUTTON_WHEELUP = 4,
+    PGM_BUTTON_WHEELDOWN = 5,
+    PGM_BUTTON_X1 = SDL_BUTTON_X1 + 2,
+    PGM_BUTTON_X2 = SDL_BUTTON_X2 + 2,
+    PGM_BUTTON_KEEP = 0x80
+} PygameMouseFlags;
+
+typedef enum {
+    SDL_NOEVENT = 0,
+    /* SDL 1.2 allowed for 8 user defined events. */
+    SDL_NUMEVENTS = SDL_USEREVENT + 8,
+    SDL_ACTIVEEVENT = SDL_NUMEVENTS,
+    PGE_EVENTBEGIN = SDL_NUMEVENTS,
+    SDL_VIDEORESIZE,
+    SDL_VIDEOEXPOSE,
+    PGE_KEYREPEAT,
+    PGE_EVENTEND
+} PygameEventCode;
+
+#define PGE_NUMEVENTS (PGE_EVENTEND - PGE_EVENTBEGIN)
+
+typedef enum {
+    SDL_APPFOCUSMOUSE,
+    SDL_APPINPUTFOCUS,
+    SDL_APPACTIVE
+} PygameAppCode;
+
+/* Surface flags: based on SDL 1.2 flags */
+typedef enum {
+    PGS_SWSURFACE = 0x00000000,
+    PGS_HWSURFACE = 0x00000001,
+    PGS_ASYNCBLIT = 0x00000004,
+
+    PGS_ANYFORMAT = 0x10000000,
+    PGS_HWPALETTE = 0x20000000,
+    PGS_DOUBLEBUF = 0x40000000,
+    PGS_FULLSCREEN = 0x80000000,
+    PGS_OPENGL = 0x00000002,
+    PGS_OPENGLBLIT = 0x0000000A,
+    PGS_RESIZABLE = 0x00000010,
+    PGS_NOFRAME = 0x00000020,
+    PGS_SHOWN = 0x00000040,  /* Added from SDL 2 */
+    PGS_HIDDEN = 0x00000080, /* Added from SDL 2 */
+
+    PGS_HWACCEL = 0x00000100,
+    PGS_SRCCOLORKEY = 0x00001000,
+    PGS_RLEACCELOK = 0x00002000,
+    PGS_RLEACCEL = 0x00004000,
+    PGS_SRCALPHA = 0x00010000,
+    PGS_PREALLOC = 0x01000000
+} PygameSurfaceFlags;
+
+typedef struct {
+    Uint32 hw_available:1;
+    Uint32 wm_available:1;
+    Uint32 blit_hw:1;
+    Uint32 blit_hw_CC:1;
+    Uint32 blit_hw_A:1;
+    Uint32 blit_sw:1;
+    Uint32 blit_sw_CC:1;
+    Uint32 blit_sw_A:1;
+    Uint32 blit_fill:1;
+    Uint32 video_mem;
+    SDL_PixelFormat *vfmt;
+    SDL_PixelFormat vfmt_data;
+    int current_w;
+    int current_h;
+} pg_VideoInfo;
+
+#endif /* IS_SDLv2 */
+/* macros used throughout the source */
+#define RAISE(x, y) (PyErr_SetString((x), (y)), (PyObject *)NULL)
+
+#ifdef WITH_THREAD
+#define PG_CHECK_THREADS() (1)
+#else /* ~WITH_THREAD */
+#define PG_CHECK_THREADS()                        \
+    (RAISE(PyExc_NotImplementedError,             \
+          "Python built without thread support"))
+#endif /* ~WITH_THREAD */
+
+#define PyType_Init(x) (((x).ob_type) = &PyType_Type)
+#define PYGAMEAPI_LOCAL_ENTRY "_PYGAME_C_API"
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef ABS
+#define ABS(a) (((a) < 0) ? -(a) : (a))
+#endif
+
+/* test sdl initializations */
+#define VIDEO_INIT_CHECK()            \
+    if (!SDL_WasInit(SDL_INIT_VIDEO)) \
+    return RAISE(pgExc_SDLError, "video system not initialized")
+
+#define CDROM_INIT_CHECK()            \
+    if (!SDL_WasInit(SDL_INIT_CDROM)) \
+    return RAISE(pgExc_SDLError, "cdrom system not initialized")
+
+#define JOYSTICK_INIT_CHECK()            \
+    if (!SDL_WasInit(SDL_INIT_JOYSTICK)) \
+    return RAISE(pgExc_SDLError, "joystick system not initialized")
+
+/* BASE */
+#define VIEW_CONTIGUOUS 1
+#define VIEW_C_ORDER 2
+#define VIEW_F_ORDER 4
+
+#define PYGAMEAPI_BASE_FIRSTSLOT 0
+#if IS_SDLv1
+#define PYGAMEAPI_BASE_NUMSLOTS 19
+#else /* IS_SDLv2 */
+#define PYGAMEAPI_BASE_NUMSLOTS 23
+#endif /* IS_SDLv2 */
+#ifndef PYGAMEAPI_BASE_INTERNAL
+#define pgExc_SDLError ((PyObject *)PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT])
+
+#define pg_RegisterQuit \
+    (*(void (*)(void (*)(void)))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 1])
+
+#define pg_IntFromObj \
+    (*(int (*)(PyObject *, int *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 2])
+
+#define pg_IntFromObjIndex      \
+    (*(int (*)(PyObject *, int, \
+               int *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 3])
+
+#define pg_TwoIntsFromObj         \
+    (*(int (*)(PyObject *, int *, \
+               int *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 4])
+
+#define pg_FloatFromObj \
+    (*(int (*)(PyObject *, float *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 5])
+
+#define pg_FloatFromObjIndex    \
+    (*(int (*)(PyObject *, int, \
+               float *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 6])
+
+#define pg_TwoFloatsFromObj         \
+    (*(int (*)(PyObject *, float *, \
+               float *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 7])
+
+#define pg_UintFromObj     \
+    (*(int (*)(PyObject *, \
+               Uint32 *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 8])
+
+#define pg_UintFromObjIndex     \
+    (*(int (*)(PyObject *, int, \
+               Uint32 *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 9])
+
+#define pgVideo_AutoQuit \
+    (*(void (*)(void))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 10])
+
+#define pgVideo_AutoInit \
+    (*(int (*)(void))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 11])
+
+#define pg_RGBAFromObj     \
+    (*(int (*)(PyObject *, \
+               Uint8 *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 12])
+
+#define pgBuffer_AsArrayInterface   \
+    (*(PyObject * (*)(Py_buffer *)) \
+         PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 13])
+
+#define pgBuffer_AsArrayStruct      \
+    (*(PyObject * (*)(Py_buffer *)) \
+         PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 14])
+
+#define pgObject_GetBuffer              \
+    (*(int (*)(PyObject *, pg_buffer *, \
+               int))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 15])
+
+#define pgBuffer_Release \
+    (*(void (*)(pg_buffer *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 16])
+
+#define pgDict_AsBuffer                 \
+    (*(int (*)(pg_buffer *, PyObject *, \
+               int))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 17])
+
+#define pgExc_BufferError \
+    ((PyObject *)PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 18])
+
+#if IS_SDLv2
+#define pg_GetDefaultWindow \
+    (*(SDL_Window * (*)(void)) PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 19])
+
+#define pg_SetDefaultWindow \
+    (*(void (*)(SDL_Window *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 20])
+
+#define pg_GetDefaultWindowSurface \
+    (*(PyObject * (*)(void)) PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 21])
+
+#define pg_SetDefaultWindowSurface \
+    (*(void (*)(PyObject *))PyGAME_C_API[PYGAMEAPI_BASE_FIRSTSLOT + 22])
+
+#endif /* IS_SDLv2 */
+
+#define import_pygame_base() IMPORT_PYGAME_MODULE(base, BASE)
+#endif
+
+/* RECT */
+#define PYGAMEAPI_RECT_FIRSTSLOT \
+    (PYGAMEAPI_BASE_FIRSTSLOT + PYGAMEAPI_BASE_NUMSLOTS)
+#define PYGAMEAPI_RECT_NUMSLOTS 4
+
+#if IS_SDLv1
+typedef struct {
+    int x, y;
+    int w, h;
+} GAME_Rect;
+#else
+typedef SDL_Rect GAME_Rect;
+#endif
+
+typedef struct {
+    PyObject_HEAD GAME_Rect r;
+    PyObject *weakreflist;
+} pgRectObject;
+
+#define pgRect_AsRect(x) (((pgRectObject *)x)->r)
+#ifndef PYGAMEAPI_RECT_INTERNAL
+#define pgRect_Check(x) \
+    ((x)->ob_type ==    \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_RECT_FIRSTSLOT + 0])
+#define pgRect_Type \
+    (*(PyTypeObject *)PyGAME_C_API[PYGAMEAPI_RECT_FIRSTSLOT + 0])
+#define pgRect_New \
+    (*(PyObject * (*)(SDL_Rect *)) PyGAME_C_API[PYGAMEAPI_RECT_FIRSTSLOT + 1])
+#define pgRect_New4                        \
+    (*(PyObject * (*)(int, int, int, int)) \
+         PyGAME_C_API[PYGAMEAPI_RECT_FIRSTSLOT + 2])
+#define pgRect_FromObject                        \
+    (*(GAME_Rect * (*)(PyObject *, GAME_Rect *)) \
+         PyGAME_C_API[PYGAMEAPI_RECT_FIRSTSLOT + 3])
+
+#define import_pygame_rect() IMPORT_PYGAME_MODULE(rect, RECT)
+#endif
+
+/* CDROM */
+#define PYGAMEAPI_CDROM_FIRSTSLOT \
+    (PYGAMEAPI_RECT_FIRSTSLOT + PYGAMEAPI_RECT_NUMSLOTS)
+#define PYGAMEAPI_CDROM_NUMSLOTS 2
+
+typedef struct {
+    PyObject_HEAD int id;
+} pgCDObject;
+
+#define pgCD_AsID(x) (((pgCDObject *)x)->id)
+#ifndef PYGAMEAPI_CDROM_INTERNAL
+#define pgCD_Check(x) \
+    ((x)->ob_type ==  \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_CDROM_FIRSTSLOT + 0])
+#define pgCD_Type \
+    (*(PyTypeObject *)PyGAME_C_API[PYGAMEAPI_CDROM_FIRSTSLOT + 0])
+#define pgCD_New \
+    (*(PyObject * (*)(int)) PyGAME_C_API[PYGAMEAPI_CDROM_FIRSTSLOT + 1])
+
+#define import_pygame_cd() IMPORT_PYGAME_MODULE(cdrom, CDROM)
+#endif
+
+/* JOYSTICK */
+#define PYGAMEAPI_JOYSTICK_FIRSTSLOT \
+    (PYGAMEAPI_CDROM_FIRSTSLOT + PYGAMEAPI_CDROM_NUMSLOTS)
+#define PYGAMEAPI_JOYSTICK_NUMSLOTS 2
+
+typedef struct {
+    PyObject_HEAD int id;
+} pgJoystickObject;
+
+#define pgJoystick_AsID(x) (((pgJoystickObject *)x)->id)
+
+#ifndef PYGAMEAPI_JOYSTICK_INTERNAL
+#define pgJoystick_Check(x) \
+    ((x)->ob_type ==        \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_JOYSTICK_FIRSTSLOT + 0])
+
+#define pgJoystick_Type \
+    (*(PyTypeObject *)PyGAME_C_API[PYGAMEAPI_JOYSTICK_FIRSTSLOT + 0])
+#define pgJoystick_New \
+    (*(PyObject * (*)(int)) PyGAME_C_API[PYGAMEAPI_JOYSTICK_FIRSTSLOT + 1])
+
+#define import_pygame_joystick() IMPORT_PYGAME_MODULE(joystick, JOYSTICK)
+#endif
+
+/* DISPLAY */
+#define PYGAMEAPI_DISPLAY_FIRSTSLOT \
+    (PYGAMEAPI_JOYSTICK_FIRSTSLOT + PYGAMEAPI_JOYSTICK_NUMSLOTS)
+#define PYGAMEAPI_DISPLAY_NUMSLOTS 2
+
+typedef struct {
+#if IS_SDLv1
+    PyObject_HEAD SDL_VideoInfo info;
+#else
+    PyObject_HEAD pg_VideoInfo info;
+#endif
+} pgVidInfoObject;
+
+#define pgVidInfo_AsVidInfo(x) (((pgVidInfoObject *)x)->info)
+#ifndef PYGAMEAPI_DISPLAY_INTERNAL
+#define pgVidInfo_Check(x) \
+    ((x)->ob_type ==       \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_DISPLAY_FIRSTSLOT + 0])
+
+#define pgVidInfo_Type \
+    (*(PyTypeObject *)PyGAME_C_API[PYGAMEAPI_DISPLAY_FIRSTSLOT + 0])
+
+#if IS_SDLv1
+#define pgVidInfo_New                   \
+    (*(PyObject * (*)(SDL_VideoInfo *)) \
+         PyGAME_C_API[PYGAMEAPI_DISPLAY_FIRSTSLOT + 1])
+#else
+#define pgVidInfo_New                   \
+    (*(PyObject * (*)(pg_VideoInfo *)) \
+         PyGAME_C_API[PYGAMEAPI_DISPLAY_FIRSTSLOT + 1])
+#endif
+
+#define import_pygame_display() IMPORT_PYGAME_MODULE(display, DISPLAY)
+#endif
+
+/* SURFACE */
+#define PYGAMEAPI_SURFACE_FIRSTSLOT \
+    (PYGAMEAPI_DISPLAY_FIRSTSLOT + PYGAMEAPI_DISPLAY_NUMSLOTS)
+#define PYGAMEAPI_SURFACE_NUMSLOTS 3
+typedef struct {
+    PyObject_HEAD SDL_Surface *surf;
+#if IS_SDLv2
+    int owner;
+#endif                                    /* IS_SDLv2 */
+    struct pgSubSurface_Data *subsurface; /*ptr to subsurface data (if a
+                                           * subsurface)*/
+    PyObject *weakreflist;
+    PyObject *locklist;
+    PyObject *dependency;
+} pgSurfaceObject;
+#define pgSurface_AsSurface(x) (((pgSurfaceObject *)x)->surf)
+#ifndef PYGAMEAPI_SURFACE_INTERNAL
+#define pgSurface_Check(x)    \
+    (PyObject_IsInstance((x), \
+        (PyObject *)PyGAME_C_API[PYGAMEAPI_SURFACE_FIRSTSLOT + 0]))
+#define pgSurface_Type \
+    (*(PyTypeObject *)PyGAME_C_API[PYGAMEAPI_SURFACE_FIRSTSLOT + 0])
+#if IS_SDLv1
+#define pgSurface_New                 \
+    (*(PyObject * (*)(SDL_Surface *)) \
+         PyGAME_C_API[PYGAMEAPI_SURFACE_FIRSTSLOT + 1])
+#else /* IS_SDLv2 */
+#define pgSurface_New2                     \
+    (*(PyObject * (*)(SDL_Surface *, int)) \
+         PyGAME_C_API[PYGAMEAPI_SURFACE_FIRSTSLOT + 1])
+#endif /* IS_SDLv2 */
+#define pgSurface_Blit                                         \
+    (*(int (*)(PyObject *, PyObject *, SDL_Rect *, SDL_Rect *, \
+               int))PyGAME_C_API[PYGAMEAPI_SURFACE_FIRSTSLOT + 2])
+
+#define import_pygame_surface()                   \
+    do {                                          \
+        IMPORT_PYGAME_MODULE(surface, SURFACE);   \
+        if (PyErr_Occurred() != NULL)             \
+            break;                                \
+        IMPORT_PYGAME_MODULE(surflock, SURFLOCK); \
+    } while (0)
+
+#if IS_SDLv2
+#define pgSurface_New(surface) pgSurface_New2((surface), 1)
+#define pgSurface_NewNoOwn(surface) pgSurface_New2((surface), 0)
+#endif /* IS_SDLv2 */
+
+#endif
+
+/* SURFLOCK */ /*auto import/init by surface*/
+#define PYGAMEAPI_SURFLOCK_FIRSTSLOT \
+    (PYGAMEAPI_SURFACE_FIRSTSLOT + PYGAMEAPI_SURFACE_NUMSLOTS)
+#define PYGAMEAPI_SURFLOCK_NUMSLOTS 8
+struct pgSubSurface_Data {
+    PyObject *owner;
+    int pixeloffset;
+    int offsetx, offsety;
+};
+
+typedef struct {
+    PyObject_HEAD PyObject *surface;
+    PyObject *lockobj;
+    PyObject *weakrefs;
+} pgLifetimeLockObject;
+
+#ifndef PYGAMEAPI_SURFLOCK_INTERNAL
+#define pgLifetimeLock_Check(x) \
+    ((x)->ob_type ==            \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 0])
+#define pgSurface_Prep(x)                   \
+    if (((pgSurfaceObject *)x)->subsurface) \
+    (*(*(void (*)(                          \
+        PyObject *))PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 1]))(x)
+
+#define pgSurface_Unprep(x)                 \
+    if (((pgSurfaceObject *)x)->subsurface) \
+    (*(*(void (*)(                          \
+        PyObject *))PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 2]))(x)
+
+#define pgSurface_Lock \
+    (*(int (*)(PyObject *))PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 3])
+#define pgSurface_Unlock \
+    (*(int (*)(PyObject *))PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 4])
+#define pgSurface_LockBy   \
+    (*(int (*)(PyObject *, \
+               PyObject *))PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 5])
+#define pgSurface_UnlockBy \
+    (*(int (*)(PyObject *, \
+               PyObject *))PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 6])
+#define pgSurface_LockLifetime                 \
+    (*(PyObject * (*)(PyObject *, PyObject *)) \
+         PyGAME_C_API[PYGAMEAPI_SURFLOCK_FIRSTSLOT + 7])
+#endif
+
+/* EVENT */
+#define PYGAMEAPI_EVENT_FIRSTSLOT \
+    (PYGAMEAPI_SURFLOCK_FIRSTSLOT + PYGAMEAPI_SURFLOCK_NUMSLOTS)
+#if IS_SDLv1
+#define PYGAMEAPI_EVENT_NUMSLOTS 4
+#else /* IS_SDLv2 */
+#define PYGAMEAPI_EVENT_NUMSLOTS 6
+#endif /* IS_SDLv2 */
+
+typedef struct {
+    PyObject_HEAD int type;
+    PyObject *dict;
+} pgEventObject;
+
+#ifndef PYGAMEAPI_EVENT_INTERNAL
+#define pgEvent_Check(x) \
+    ((x)->ob_type ==     \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 0])
+#define pgEvent_Type \
+    (*(PyTypeObject *)PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 0])
+#define pgEvent_New                 \
+    (*(PyObject * (*)(SDL_Event *)) \
+         PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 1])
+#define pgEvent_New2                    \
+    (*(PyObject * (*)(int, PyObject *)) \
+         PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 2])
+#define pgEvent_FillUserEvent   \
+    (*(int (*)(pgEventObject *, \
+               SDL_Event *))PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 3])
+#if IS_SDLv2
+#define pg_EnableKeyRepeat \
+    (*(int (*)(int, int))PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 4])
+#define pg_GetKeyRepeat \
+    (*(void (*)(int *, int *))PyGAME_C_API[PYGAMEAPI_EVENT_FIRSTSLOT + 5])
+#endif /* IS_SDLv2 */
+#define import_pygame_event() IMPORT_PYGAME_MODULE(event, EVENT)
+#endif
+
+/* RWOBJECT */
+/*the rwobject are only needed for C side work, not accessable from python*/
+#define PYGAMEAPI_RWOBJECT_FIRSTSLOT \
+    (PYGAMEAPI_EVENT_FIRSTSLOT + PYGAMEAPI_EVENT_NUMSLOTS)
+#define PYGAMEAPI_RWOBJECT_NUMSLOTS 6
+#ifndef PYGAMEAPI_RWOBJECT_INTERNAL
+#define pgRWops_FromObject           \
+    (*(SDL_RWops * (*)(PyObject *))  \
+         PyGAME_C_API[PYGAMEAPI_RWOBJECT_FIRSTSLOT + 0])
+#define pgRWops_IsFileObject \
+    (*(int (*)(SDL_RWops *))PyGAME_C_API[PYGAMEAPI_RWOBJECT_FIRSTSLOT + 1])
+#define pg_EncodeFilePath                       \
+    (*(PyObject * (*)(PyObject *, PyObject *))  \
+         PyGAME_C_API[PYGAMEAPI_RWOBJECT_FIRSTSLOT + 2])
+#define pg_EncodeString                                                     \
+    (*(PyObject * (*)(PyObject *, const char *, const char *, PyObject *))  \
+         PyGAME_C_API[PYGAMEAPI_RWOBJECT_FIRSTSLOT + 3])
+#define pgRWops_FromFileObject       \
+    (*(SDL_RWops * (*)(PyObject *))  \
+         PyGAME_C_API[PYGAMEAPI_RWOBJECT_FIRSTSLOT + 4])
+#define pgRWops_ReleaseObject       \
+    (*(int (*)(SDL_RWops *))        \
+         PyGAME_C_API[PYGAMEAPI_RWOBJECT_FIRSTSLOT + 5])
+#define import_pygame_rwobject() IMPORT_PYGAME_MODULE(rwobject, RWOBJECT)
+
+#endif
+
+/* PixelArray */
+#define PYGAMEAPI_PIXELARRAY_FIRSTSLOT \
+    (PYGAMEAPI_RWOBJECT_FIRSTSLOT + PYGAMEAPI_RWOBJECT_NUMSLOTS)
+#define PYGAMEAPI_PIXELARRAY_NUMSLOTS 2
+#ifndef PYGAMEAPI_PIXELARRAY_INTERNAL
+#define PyPixelArray_Check(x) \
+    ((x)->ob_type ==          \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_PIXELARRAY_FIRSTSLOT + 0])
+#define PyPixelArray_New \
+    (*(PyObject * (*)) PyGAME_C_API[PYGAMEAPI_PIXELARRAY_FIRSTSLOT + 1])
+#define import_pygame_pixelarray() IMPORT_PYGAME_MODULE(pixelarray, PIXELARRAY)
+#endif /* PYGAMEAPI_PIXELARRAY_INTERNAL */
+
+/* Color */
+#define PYGAMEAPI_COLOR_FIRSTSLOT \
+    (PYGAMEAPI_PIXELARRAY_FIRSTSLOT + PYGAMEAPI_PIXELARRAY_NUMSLOTS)
+#define PYGAMEAPI_COLOR_NUMSLOTS 4
+#ifndef PYGAMEAPI_COLOR_INTERNAL
+#define pgColor_Check(x) \
+    ((x)->ob_type ==     \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_COLOR_FIRSTSLOT + 0])
+#define pgColor_Type (*(PyObject *)PyGAME_C_API[PYGAMEAPI_COLOR_FIRSTSLOT])
+#define pgColor_New \
+    (*(PyObject * (*)(Uint8 *)) PyGAME_C_API[PYGAMEAPI_COLOR_FIRSTSLOT + 1])
+#define pgColor_NewLength              \
+    (*(PyObject * (*)(Uint8 *, Uint8)) \
+         PyGAME_C_API[PYGAMEAPI_COLOR_FIRSTSLOT + 3])
+
+#define pg_RGBAFromColorObj \
+    (*(int (*)(PyObject *,  \
+               Uint8 *))PyGAME_C_API[PYGAMEAPI_COLOR_FIRSTSLOT + 2])
+#define import_pygame_color() IMPORT_PYGAME_MODULE(color, COLOR)
+#endif /* PYGAMEAPI_COLOR_INTERNAL */
+
+/* Math */
+#define PYGAMEAPI_MATH_FIRSTSLOT \
+    (PYGAMEAPI_COLOR_FIRSTSLOT + PYGAMEAPI_COLOR_NUMSLOTS)
+#define PYGAMEAPI_MATH_NUMSLOTS 2
+#ifndef PYGAMEAPI_MATH_INTERNAL
+#define pgVector2_Check(x) \
+    ((x)->ob_type ==       \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_MATH_FIRSTSLOT + 0])
+#define pgVector3_Check(x) \
+    ((x)->ob_type ==       \
+     (PyTypeObject *)PyGAME_C_API[PYGAMEAPI_MATH_FIRSTSLOT + 1])
+/*
+#define pgVector2_New                                             \
+    (*(PyObject*(*)) PyGAME_C_API[PYGAMEAPI_MATH_FIRSTSLOT + 1])
+*/
+#define import_pygame_math() IMPORT_PYGAME_MODULE(math, MATH)
+#endif /* PYGAMEAPI_MATH_INTERNAL */
+
+#define PG_CAPSULE_NAME(m) (IMPPREFIX m "." PYGAMEAPI_LOCAL_ENTRY)
+
+#define _IMPORT_PYGAME_MODULE(module, MODULE, api_root)                      \
+    {                                                                        \
+        PyObject *_module = PyImport_ImportModule(IMPPREFIX #module);        \
+                                                                             \
+        if (_module != NULL) {                                               \
+            PyObject *_c_api =                                               \
+                PyObject_GetAttrString(_module, PYGAMEAPI_LOCAL_ENTRY);      \
+                                                                             \
+            Py_DECREF(_module);                                              \
+            if (_c_api != NULL && PyCapsule_CheckExact(_c_api)) {            \
+                void **localptr = (void **)PyCapsule_GetPointer(             \
+                    _c_api, PG_CAPSULE_NAME(#module));                       \
+                                                                             \
+                if (localptr != NULL) {                                      \
+                    memcpy(api_root + PYGAMEAPI_##MODULE##_FIRSTSLOT,        \
+                           localptr,                                         \
+                           sizeof(void **) * PYGAMEAPI_##MODULE##_NUMSLOTS); \
+                }                                                            \
+            }                                                                \
+            Py_XDECREF(_c_api);                                              \
+        }                                                                    \
+    }
+
+#ifndef NO_PYGAME_C_API
+#define IMPORT_PYGAME_MODULE(module, MODULE) \
+    _IMPORT_PYGAME_MODULE(module, MODULE, PyGAME_C_API)
+#define PYGAMEAPI_TOTALSLOTS \
+    (PYGAMEAPI_MATH_FIRSTSLOT + PYGAMEAPI_MATH_NUMSLOTS)
+
+#ifdef PYGAME_H
+void *PyGAME_C_API[PYGAMEAPI_TOTALSLOTS] = {NULL};
+#else
+extern void *PyGAME_C_API[PYGAMEAPI_TOTALSLOTS];
+#endif
+#endif
+
+#if PG_HAVE_CAPSULE
+#define encapsulate_api(ptr, module) \
+    PyCapsule_New(ptr, PG_CAPSULE_NAME(module), NULL)
+#else
+#define encapsulate_api(ptr, module) PyCObject_FromVoidPtr(ptr, NULL)
+#endif
+
+#ifndef PG_INLINE
+#if defined(__clang__)
+#define PG_INLINE __inline__ __attribute__((__unused__))
+#elif defined(__GNUC__)
+#define PG_INLINE __inline__
+#elif defined(_MSC_VER)
+#define PG_INLINE __inline
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#define PG_INLINE inline
+#else
+#define PG_INLINE
+#endif
+#endif
+
+/*last platform compiler stuff*/
+#if defined(macintosh) && defined(__MWERKS__) || defined(__SYMBIAN32__)
+#define PYGAME_EXPORT __declspec(export)
+#else
+#define PYGAME_EXPORT
+#endif
+
+
+#endif /* PYGAME_H */

venv/Include/site/python3.7/pygame/_surface.h

@@ -0,0 +1,31 @@
+/*
+  pygame - Python Game Library
+  Copyright (C) 2000-2001  Pete Shinners
+  Copyright (C) 2007 Marcus von Appen
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not, write to the Free
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  Pete Shinners
+  pete@shinners.org
+*/
+
+#ifndef _SURFACE_H
+#define _SURFACE_H
+
+#include "_pygame.h"
+#include "surface.h"
+
+#endif
+

venv/Include/site/python3.7/pygame/bitmask.h

@@ -0,0 +1,146 @@
+/*
+    Bitmask 1.7 - A pixel-perfect collision detection library.
+
+    Copyright (C) 2002-2005 Ulf Ekstrom except for the bitcount
+    function which is copyright (C) Donald W. Gillies, 1992.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef BITMASK_H
+#define BITMASK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <limits.h>
+/* Define INLINE for different compilers.  If your compiler does not
+   support inlining then there might be a performance hit in
+   bitmask_overlap_area().
+*/
+#ifndef INLINE
+# ifdef __GNUC__
+#  define INLINE inline
+# else
+#  ifdef _MSC_VER
+#   define INLINE __inline
+#  else
+#   define INLINE
+#  endif
+# endif
+#endif
+
+#define BITMASK_W unsigned long int
+#define BITMASK_W_LEN (sizeof(BITMASK_W)*CHAR_BIT)
+#define BITMASK_W_MASK (BITMASK_W_LEN - 1)
+#define BITMASK_N(n) ((BITMASK_W)1 << (n))
+
+typedef struct bitmask
+{
+  int w,h;
+  BITMASK_W bits[1];
+} bitmask_t;
+
+/* Creates a bitmask of width w and height h, where
+   w and h must both be greater than or equal to 0.
+   The mask is automatically cleared when created.
+ */
+bitmask_t *bitmask_create(int w, int h);
+
+/* Frees all the memory allocated by bitmask_create for m. */
+void bitmask_free(bitmask_t *m);
+
+/* Clears all bits in the mask */
+void bitmask_clear(bitmask_t *m);
+
+/* Sets all bits in the mask */
+void bitmask_fill(bitmask_t *m);
+
+/* Flips all bits in the mask */
+void bitmask_invert(bitmask_t *m);
+
+/* Counts the bits in the mask */
+unsigned int bitmask_count(bitmask_t *m);
+
+/* Returns nonzero if the bit at (x,y) is set.  Coordinates start at
+   (0,0) */
+static INLINE int bitmask_getbit(const bitmask_t *m, int x, int y)
+{
+  return (m->bits[x/BITMASK_W_LEN*m->h + y] & BITMASK_N(x & BITMASK_W_MASK)) != 0;
+}
+
+/* Sets the bit at (x,y) */
+static INLINE void bitmask_setbit(bitmask_t *m, int x, int y)
+{
+  m->bits[x/BITMASK_W_LEN*m->h + y] |= BITMASK_N(x & BITMASK_W_MASK);
+}
+
+/* Clears the bit at (x,y) */
+static INLINE void bitmask_clearbit(bitmask_t *m, int x, int y)
+{
+  m->bits[x/BITMASK_W_LEN*m->h + y] &= ~BITMASK_N(x & BITMASK_W_MASK);
+}
+
+/* Returns nonzero if the masks overlap with the given offset.
+   The overlap tests uses the following offsets (which may be negative):
+
+   +----+----------..
+   |A   | yoffset
+   |  +-+----------..
+   +--|B
+   |xoffset
+   |  |
+   :  :
+*/
+int bitmask_overlap(const bitmask_t *a, const bitmask_t *b, int xoffset, int yoffset);
+
+/* Like bitmask_overlap(), but will also give a point of intersection.
+   x and y are given in the coordinates of mask a, and are untouched
+   if there is no overlap. */
+int bitmask_overlap_pos(const bitmask_t *a, const bitmask_t *b,
+                        int xoffset, int yoffset, int *x, int *y);
+
+/* Returns the number of overlapping 'pixels' */
+int bitmask_overlap_area(const bitmask_t *a, const bitmask_t *b, int xoffset, int yoffset);
+
+/* Fills a mask with the overlap of two other masks. A bitwise AND. */
+void bitmask_overlap_mask (const bitmask_t *a, const bitmask_t *b, bitmask_t *c, int xoffset, int yoffset);
+
+/* Draws mask b onto mask a (bitwise OR). Can be used to compose large
+   (game background?) mask from several submasks, which may speed up
+   the testing. */
+
+void bitmask_draw(bitmask_t *a, const bitmask_t *b, int xoffset, int yoffset);
+
+void bitmask_erase(bitmask_t *a, const bitmask_t *b, int xoffset, int yoffset);
+
+/* Return a new scaled bitmask, with dimensions w*h. The quality of the
+   scaling may not be perfect for all circumstances, but it should
+   be reasonable. If either w or h is 0 a clear 1x1 mask is returned. */
+bitmask_t *bitmask_scale(const bitmask_t *m, int w, int h);
+
+/* Convolve b into a, drawing the output into o, shifted by offset.  If offset
+ * is 0, then the (x,y) bit will be set if and only if
+ * bitmask_overlap(a, b, x - b->w - 1, y - b->h - 1) returns true.
+ *
+ * Modifies bits o[xoffset ... xoffset + a->w + b->w - 1)
+ *                [yoffset ... yoffset + a->h + b->h - 1). */
+void bitmask_convolve(const bitmask_t *a, const bitmask_t *b, bitmask_t *o, int xoffset, int yoffset);
+
+#ifdef __cplusplus
+} /* End of extern "C" { */
+#endif
+
+#endif

venv/Include/site/python3.7/pygame/camera.h

@@ -0,0 +1,201 @@
+/*
+  pygame - Python Game Library
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not, write to the Free
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+
+#include "pygame.h"
+#include "doc/camera_doc.h"
+
+#if defined(__unix__)
+    #include <structmember.h>
+    #include <stdio.h>
+    #include <stdlib.h>
+    #include <string.h>
+    #include <assert.h>
+
+    #include <fcntl.h>              /* low-level i/o */
+    #include <unistd.h>
+    #include <errno.h>
+    #include <sys/stat.h>
+    #include <sys/types.h>
+    #include <sys/time.h>
+    #include <sys/mman.h>
+    #include <sys/ioctl.h>
+
+    /* on freebsd there is no asm/types */
+    #ifdef linux
+        #include <asm/types.h>          /* for videodev2.h */
+    #endif
+
+    #include <linux/videodev2.h>
+#elif defined(__APPLE__)
+    #include <AvailabilityMacros.h>
+    /* We support OSX 10.6 and below. */
+    #if __MAC_OS_X_VERSION_MAX_ALLOWED <= 1060
+        #define PYGAME_MAC_CAMERA_OLD 1
+    #endif
+#endif
+
+#if defined(PYGAME_MAC_CAMERA_OLD)
+        #include <QuickTime/QuickTime.h>
+        #include <QuickTime/Movies.h>
+        #include <QuickTime/ImageCompression.h>
+#endif
+
+/* some constants used which are not defined on non-v4l machines. */
+#ifndef V4L2_PIX_FMT_RGB24
+    #define V4L2_PIX_FMT_RGB24 'RGB3'
+#endif
+#ifndef V4L2_PIX_FMT_RGB444
+    #define V4L2_PIX_FMT_RGB444 'R444'
+#endif
+#ifndef V4L2_PIX_FMT_YUYV
+    #define V4L2_PIX_FMT_YUYV 'YUYV'
+#endif
+
+#define CLEAR(x) memset (&(x), 0, sizeof (x))
+#define SAT(c) if (c & (~255)) { if (c < 0) c = 0; else c = 255; }
+#define SAT2(c) ((c) & (~255) ? ((c) < 0 ? 0 : 255) : (c))
+#define DEFAULT_WIDTH 640
+#define DEFAULT_HEIGHT 480
+#define RGB_OUT 1
+#define YUV_OUT 2
+#define HSV_OUT 4
+#define CAM_V4L 1 /* deprecated. the incomplete support in pygame was removed */
+#define CAM_V4L2 2
+
+struct buffer {
+    void * start;
+    size_t length;
+};
+
+#if defined(__unix__)
+typedef struct pgCameraObject {
+    PyObject_HEAD
+    char* device_name;
+    int camera_type;
+    unsigned long pixelformat;
+    unsigned int color_out;
+    struct buffer* buffers;
+    unsigned int n_buffers;
+    int width;
+    int height;
+    int size;
+    int hflip;
+    int vflip;
+    int brightness;
+    int fd;
+} pgCameraObject;
+#elif defined(PYGAME_MAC_CAMERA_OLD)
+typedef struct pgCameraObject {
+    PyObject_HEAD
+    char* device_name;              /* unieke name of the device */
+    OSType pixelformat;
+    unsigned int color_out;
+    SeqGrabComponent component;     /* A type used by the Sequence Grabber API */
+    SGChannel channel;              /* Channel of the Sequence Grabber */
+    GWorldPtr gworld;               /* Pointer to the struct that holds the data of the captured image */
+    Rect boundsRect;                /* bounds of the image frame */
+    long size;                      /* size of the image in our buffer to draw */
+    int hflip;
+    int vflip;
+    short depth;
+    struct buffer pixels;
+    //struct buffer tmp_pixels        /* place where the flipped image in temporarly stored if hflip or vflip is true.*/
+} pgCameraObject;
+
+#else
+/* generic definition.
+*/
+
+typedef struct pgCameraObject {
+    PyObject_HEAD
+    char* device_name;
+    int camera_type;
+    unsigned long pixelformat;
+    unsigned int color_out;
+    struct buffer* buffers;
+    unsigned int n_buffers;
+    int width;
+    int height;
+    int size;
+    int hflip;
+    int vflip;
+    int brightness;
+    int fd;
+} pgCameraObject;
+#endif
+
+/* internal functions for colorspace conversion */
+void colorspace (SDL_Surface *src, SDL_Surface *dst, int cspace);
+void rgb24_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
+void rgb444_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
+void rgb_to_yuv (const void* src, void* dst, int length,
+                 unsigned long source, SDL_PixelFormat* format);
+void rgb_to_hsv (const void* src, void* dst, int length,
+                 unsigned long source, SDL_PixelFormat* format);
+void yuyv_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
+void yuyv_to_yuv (const void* src, void* dst, int length, SDL_PixelFormat* format);
+void uyvy_to_rgb (const void* src, void* dst, int length, SDL_PixelFormat* format);
+void uyvy_to_yuv (const void* src, void* dst, int length, SDL_PixelFormat* format);
+void sbggr8_to_rgb (const void* src, void* dst, int width, int height,
+                    SDL_PixelFormat* format);
+void yuv420_to_rgb (const void* src, void* dst, int width, int height,
+                    SDL_PixelFormat* format);
+void yuv420_to_yuv (const void* src, void* dst, int width, int height,
+                    SDL_PixelFormat* format);
+
+#if defined(__unix__)
+/* internal functions specific to v4l2 */
+char** v4l2_list_cameras (int* num_devices);
+int v4l2_get_control (int fd, int id, int *value);
+int v4l2_set_control (int fd, int id, int value);
+PyObject* v4l2_read_raw (pgCameraObject* self);
+int v4l2_xioctl (int fd, int request, void *arg);
+int v4l2_process_image (pgCameraObject* self, const void *image,
+                               unsigned int buffer_size, SDL_Surface* surf);
+int v4l2_query_buffer (pgCameraObject* self);
+int v4l2_read_frame (pgCameraObject* self, SDL_Surface* surf);
+int v4l2_stop_capturing (pgCameraObject* self);
+int v4l2_start_capturing (pgCameraObject* self);
+int v4l2_uninit_device (pgCameraObject* self);
+int v4l2_init_mmap (pgCameraObject* self);
+int v4l2_init_device (pgCameraObject* self);
+int v4l2_close_device (pgCameraObject* self);
+int v4l2_open_device (pgCameraObject* self);
+
+#elif defined(PYGAME_MAC_CAMERA_OLD)
+/* internal functions specific to mac */
+char** mac_list_cameras(int* num_devices);
+int mac_open_device (pgCameraObject* self);
+int mac_init_device(pgCameraObject* self);
+int mac_close_device (pgCameraObject* self);
+int mac_start_capturing(pgCameraObject* self);
+int mac_stop_capturing (pgCameraObject* self);
+
+int mac_get_control(pgCameraObject* self, int id, int* value);
+int mac_set_control(pgCameraObject* self, int id, int value);
+
+PyObject* mac_read_raw(pgCameraObject *self);
+int mac_read_frame(pgCameraObject* self, SDL_Surface* surf);
+int mac_camera_idle(pgCameraObject* self);
+int mac_copy_gworld_to_surface(pgCameraObject* self, SDL_Surface* surf);
+
+void flip_image(const void* image, void* flipped_image, int width, int height,
+                short depth, int hflip, int vflip);
+
+#endif

venv/Include/site/python3.7/pygame/fastevents.h

@@ -0,0 +1,48 @@
+#ifndef _FASTEVENTS_H_
+#define _FASTEVENTS_H_
+/*
+    NET2 is a threaded, event based, network IO library for SDL.
+    Copyright (C) 2002 Bob Pendleton
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public License
+    as published by the Free Software Foundation; either version 2.1
+    of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free
+    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+    02111-1307 USA
+
+    If you do not wish to comply with the terms of the LGPL please
+    contact the author as other terms are available for a fee.
+
+    Bob Pendleton
+    Bob@Pendleton.com
+*/
+
+#include "SDL.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+  int FE_Init(void);                     // Initialize FE
+  void FE_Quit(void);                    // shutdown FE
+
+  void FE_PumpEvents(void);              // replacement for SDL_PumpEvents
+  int FE_PollEvent(SDL_Event *event);    // replacement for SDL_PollEvent
+  int FE_WaitEvent(SDL_Event *event);    // replacement for SDL_WaitEvent
+  int FE_PushEvent(SDL_Event *event);    // replacement for SDL_PushEvent
+
+  char *FE_GetError(void);               // get the last error
+#ifdef __cplusplus
+}
+#endif
+
+#endif

venv/Include/site/python3.7/pygame/font.h

@@ -0,0 +1,57 @@
+/*
+    pygame - Python Game Library
+    Copyright (C) 2000-2001  Pete Shinners
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Pete Shinners
+    pete@shinners.org
+*/
+
+#include <Python.h>
+#if defined(HAVE_SNPRINTF)  /* also defined in SDL_ttf (SDL.h) */
+#undef HAVE_SNPRINTF        /* remove GCC macro redefine warning */
+#endif
+#include <SDL_ttf.h>
+
+
+/* test font initialization */
+#define FONT_INIT_CHECK() \
+    if(!(*(int*)PyFONT_C_API[2])) \
+        return RAISE(pgExc_SDLError, "font system not initialized")
+
+
+
+#define PYGAMEAPI_FONT_FIRSTSLOT 0
+#define PYGAMEAPI_FONT_NUMSLOTS 3
+typedef struct {
+  PyObject_HEAD
+  TTF_Font* font;
+  PyObject* weakreflist;
+} PyFontObject;
+#define PyFont_AsFont(x) (((PyFontObject*)x)->font)
+
+#ifndef PYGAMEAPI_FONT_INTERNAL
+#define PyFont_Check(x) ((x)->ob_type == (PyTypeObject*)PyFONT_C_API[0])
+#define PyFont_Type (*(PyTypeObject*)PyFONT_C_API[0])
+#define PyFont_New (*(PyObject*(*)(TTF_Font*))PyFONT_C_API[1])
+/*slot 2 taken by FONT_INIT_CHECK*/
+
+#define import_pygame_font() \
+    _IMPORT_PYGAME_MODULE(font, FONT, PyFONT_C_API)
+
+static void* PyFONT_C_API[PYGAMEAPI_FONT_NUMSLOTS] = {NULL};
+#endif
+

venv/Include/site/python3.7/pygame/freetype.h

@@ -0,0 +1,137 @@
+/*
+  pygame - Python Game Library
+  Copyright (C) 2009 Vicent Marti
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not, write to the Free
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+#ifndef _PYGAME_FREETYPE_H_
+#define _PYGAME_FREETYPE_H_
+
+#define PGFT_PYGAME1_COMPAT
+#define HAVE_PYGAME_SDL_VIDEO
+#define HAVE_PYGAME_SDL_RWOPS
+
+#include "pygame.h"
+#include "pgcompat.h"
+
+#if PY3
+#   define IS_PYTHON_3
+#endif
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_CACHE_H
+#include FT_XFREE86_H
+#include FT_TRIGONOMETRY_H
+
+/**********************************************************
+ * Global module constants
+ **********************************************************/
+
+/* Render styles */
+#define FT_STYLE_NORMAL     0x00
+#define FT_STYLE_STRONG     0x01
+#define FT_STYLE_OBLIQUE    0x02
+#define FT_STYLE_UNDERLINE  0x04
+#define FT_STYLE_WIDE       0x08
+#define FT_STYLE_DEFAULT    0xFF
+
+/* Bounding box modes */
+#define FT_BBOX_EXACT           FT_GLYPH_BBOX_SUBPIXELS
+#define FT_BBOX_EXACT_GRIDFIT   FT_GLYPH_BBOX_GRIDFIT
+#define FT_BBOX_PIXEL           FT_GLYPH_BBOX_TRUNCATE
+#define FT_BBOX_PIXEL_GRIDFIT   FT_GLYPH_BBOX_PIXELS
+
+/* Rendering flags */
+#define FT_RFLAG_NONE                  (0)
+#define FT_RFLAG_ANTIALIAS             (1 << 0)
+#define FT_RFLAG_AUTOHINT              (1 << 1)
+#define FT_RFLAG_VERTICAL              (1 << 2)
+#define FT_RFLAG_HINTED                (1 << 3)
+#define FT_RFLAG_KERNING               (1 << 4)
+#define FT_RFLAG_TRANSFORM             (1 << 5)
+#define FT_RFLAG_PAD                   (1 << 6)
+#define FT_RFLAG_ORIGIN                (1 << 7)
+#define FT_RFLAG_UCS4                  (1 << 8)
+#define FT_RFLAG_USE_BITMAP_STRIKES    (1 << 9)
+#define FT_RFLAG_DEFAULTS              (FT_RFLAG_HINTED | \
+                                        FT_RFLAG_USE_BITMAP_STRIKES | \
+                                        FT_RFLAG_ANTIALIAS)
+
+
+#define FT_RENDER_NEWBYTEARRAY      0x0
+#define FT_RENDER_NEWSURFACE        0x1
+#define FT_RENDER_EXISTINGSURFACE   0x2
+
+/**********************************************************
+ * Global module types
+ **********************************************************/
+
+typedef struct _scale_s {
+    FT_UInt x, y;
+} Scale_t;
+typedef FT_Angle Angle_t;
+
+struct fontinternals_;
+struct freetypeinstance_;
+
+typedef struct {
+    FT_Long font_index;
+    FT_Open_Args open_args;
+} pgFontId;
+
+typedef struct {
+    PyObject_HEAD
+    pgFontId id;
+    PyObject *path;
+    int is_scalable;
+
+    Scale_t face_size;
+    FT_Int16 style;
+    FT_Int16 render_flags;
+    double strength;
+    double underline_adjustment;
+    FT_UInt resolution;
+    Angle_t rotation;
+    FT_Matrix transform;
+    FT_Byte fgcolor[4];
+
+    struct freetypeinstance_ *freetype;  /* Personal reference */
+    struct fontinternals_ *_internals;
+} pgFontObject;
+
+#define pgFont_IS_ALIVE(o) \
+    (((pgFontObject *)(o))->_internals != 0)
+
+/**********************************************************
+ * Module declaration
+ **********************************************************/
+#define PYGAMEAPI_FREETYPE_FIRSTSLOT 0
+#define PYGAMEAPI_FREETYPE_NUMSLOTS 2
+
+#ifndef PYGAME_FREETYPE_INTERNAL
+
+#define pgFont_Check(x) ((x)->ob_type == (PyTypeObject*)PgFREETYPE_C_API[0])
+#define pgFont_Type (*(PyTypeObject*)PgFREETYPE_C_API[1])
+#define pgFont_New (*(PyObject*(*)(const char*, long))PgFREETYPE_C_API[1])
+
+#define import_pygame_freetype() \
+    _IMPORT_PYGAME_MODULE(freetype, FREETYPE, PgFREETYPE_C_API)
+
+static void *PgFREETYPE_C_API[PYGAMEAPI_FREETYPE_NUMSLOTS] = {0};
+#endif /* PYGAME_FREETYPE_INTERNAL */
+
+#endif /* _PYGAME_FREETYPE_H_ */

venv/Include/site/python3.7/pygame/mask.h

@@ -0,0 +1,25 @@
+#include <Python.h>
+#include "bitmask.h"
+
+#define PYGAMEAPI_MASK_FIRSTSLOT 0
+#define PYGAMEAPI_MASK_NUMSLOTS 1
+#define PYGAMEAPI_LOCAL_ENTRY "_PYGAME_C_API"
+
+typedef struct {
+  PyObject_HEAD
+  bitmask_t *mask;
+} pgMaskObject;
+
+#define pgMask_AsBitmap(x) (((pgMaskObject*)x)->mask)
+
+#ifndef PYGAMEAPI_MASK_INTERNAL
+
+#define pgMask_Type     (*(PyTypeObject*)PyMASK_C_API[0])
+#define pgMask_Check(x) ((x)->ob_type == &pgMask_Type)
+
+#define import_pygame_mask() \
+    _IMPORT_PYGAME_MODULE(mask, MASK, PyMASK_C_API)
+
+static void* PyMASK_C_API[PYGAMEAPI_MASK_NUMSLOTS] = {NULL};
+#endif /* #ifndef PYGAMEAPI_MASK_INTERNAL */
+

venv/Include/site/python3.7/pygame/mixer.h

@@ -0,0 +1,65 @@
+/*
+    pygame - Python Game Library
+    Copyright (C) 2000-2001  Pete Shinners
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Pete Shinners
+    pete@shinners.org
+*/
+
+#include <Python.h>
+#include <SDL_mixer.h>
+#include <structmember.h>
+
+
+/* test mixer initializations */
+#define MIXER_INIT_CHECK() \
+    if(!SDL_WasInit(SDL_INIT_AUDIO)) \
+        return RAISE(pgExc_SDLError, "mixer not initialized")
+
+
+#define PYGAMEAPI_MIXER_FIRSTSLOT 0
+#define PYGAMEAPI_MIXER_NUMSLOTS 7
+typedef struct {
+  PyObject_HEAD
+  Mix_Chunk *chunk;
+  Uint8 *mem;
+  PyObject *weakreflist;
+} pgSoundObject;
+typedef struct {
+  PyObject_HEAD
+  int chan;
+} pgChannelObject;
+#define pgSound_AsChunk(x) (((pgSoundObject*)x)->chunk)
+#define pgChannel_AsInt(x) (((pgChannelObject*)x)->chan)
+
+#ifndef PYGAMEAPI_MIXER_INTERNAL
+#define pgSound_Check(x) ((x)->ob_type == (PyTypeObject*)pgMIXER_C_API[0])
+#define pgSound_Type (*(PyTypeObject*)pgMIXER_C_API[0])
+#define pgSound_New (*(PyObject*(*)(Mix_Chunk*))pgMIXER_C_API[1])
+#define pgSound_Play (*(PyObject*(*)(PyObject*, PyObject*))pgMIXER_C_API[2])
+#define pgChannel_Check(x) ((x)->ob_type == (PyTypeObject*)pgMIXER_C_API[3])
+#define pgChannel_Type (*(PyTypeObject*)pgMIXER_C_API[3])
+#define pgChannel_New (*(PyObject*(*)(int))pgMIXER_C_API[4])
+#define pgMixer_AutoInit (*(PyObject*(*)(PyObject*, PyObject*))pgMIXER_C_API[5])
+#define pgMixer_AutoQuit (*(void(*)(void))pgMIXER_C_API[6])
+
+#define import_pygame_mixer() \
+    _IMPORT_PYGAME_MODULE(mixer, MIXER, pgMIXER_C_API)
+
+static void* pgMIXER_C_API[PYGAMEAPI_MIXER_NUMSLOTS] = {NULL};
+#endif
+

venv/Include/site/python3.7/pygame/palette.h

@@ -0,0 +1,123 @@
+/*
+    pygame - Python Game Library
+    Copyright (C) 2000-2001  Pete Shinners
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Pete Shinners
+    pete@shinners.org
+*/
+
+#ifndef PALETTE_H
+#define PALETTE_H
+
+#include <SDL.h>
+
+/* SDL 2 does not assign a default palette color scheme to a new 8 bit
+ * surface. Instead, the palette is set all white. This defines the SDL 1.2
+ * default palette.
+ */
+static const SDL_Color default_palette_colors[] = {
+    {0, 0, 0, 255},       {0, 0, 85, 255},      {0, 0, 170, 255},
+    {0, 0, 255, 255},     {0, 36, 0, 255},      {0, 36, 85, 255},
+    {0, 36, 170, 255},    {0, 36, 255, 255},    {0, 73, 0, 255},
+    {0, 73, 85, 255},     {0, 73, 170, 255},    {0, 73, 255, 255},
+    {0, 109, 0, 255},     {0, 109, 85, 255},    {0, 109, 170, 255},
+    {0, 109, 255, 255},   {0, 146, 0, 255},     {0, 146, 85, 255},
+    {0, 146, 170, 255},   {0, 146, 255, 255},   {0, 182, 0, 255},
+    {0, 182, 85, 255},    {0, 182, 170, 255},   {0, 182, 255, 255},
+    {0, 219, 0, 255},     {0, 219, 85, 255},    {0, 219, 170, 255},
+    {0, 219, 255, 255},   {0, 255, 0, 255},     {0, 255, 85, 255},
+    {0, 255, 170, 255},   {0, 255, 255, 255},   {85, 0, 0, 255},
+    {85, 0, 85, 255},     {85, 0, 170, 255},    {85, 0, 255, 255},
+    {85, 36, 0, 255},     {85, 36, 85, 255},    {85, 36, 170, 255},
+    {85, 36, 255, 255},   {85, 73, 0, 255},     {85, 73, 85, 255},
+    {85, 73, 170, 255},   {85, 73, 255, 255},   {85, 109, 0, 255},
+    {85, 109, 85, 255},   {85, 109, 170, 255},  {85, 109, 255, 255},
+    {85, 146, 0, 255},    {85, 146, 85, 255},   {85, 146, 170, 255},
+    {85, 146, 255, 255},  {85, 182, 0, 255},    {85, 182, 85, 255},
+    {85, 182, 170, 255},  {85, 182, 255, 255},  {85, 219, 0, 255},
+    {85, 219, 85, 255},   {85, 219, 170, 255},  {85, 219, 255, 255},
+    {85, 255, 0, 255},    {85, 255, 85, 255},   {85, 255, 170, 255},
+    {85, 255, 255, 255},  {170, 0, 0, 255},     {170, 0, 85, 255},
+    {170, 0, 170, 255},   {170, 0, 255, 255},   {170, 36, 0, 255},
+    {170, 36, 85, 255},   {170, 36, 170, 255},  {170, 36, 255, 255},
+    {170, 73, 0, 255},    {170, 73, 85, 255},   {170, 73, 170, 255},
+    {170, 73, 255, 255},  {170, 109, 0, 255},   {170, 109, 85, 255},
+    {170, 109, 170, 255}, {170, 109, 255, 255}, {170, 146, 0, 255},
+    {170, 146, 85, 255},  {170, 146, 170, 255}, {170, 146, 255, 255},
+    {170, 182, 0, 255},   {170, 182, 85, 255},  {170, 182, 170, 255},
+    {170, 182, 255, 255}, {170, 219, 0, 255},   {170, 219, 85, 255},
+    {170, 219, 170, 255}, {170, 219, 255, 255}, {170, 255, 0, 255},
+    {170, 255, 85, 255},  {170, 255, 170, 255}, {170, 255, 255, 255},
+    {255, 0, 0, 255},     {255, 0, 85, 255},    {255, 0, 170, 255},
+    {255, 0, 255, 255},   {255, 36, 0, 255},    {255, 36, 85, 255},
+    {255, 36, 170, 255},  {255, 36, 255, 255},  {255, 73, 0, 255},
+    {255, 73, 85, 255},   {255, 73, 170, 255},  {255, 73, 255, 255},
+    {255, 109, 0, 255},   {255, 109, 85, 255},  {255, 109, 170, 255},
+    {255, 109, 255, 255}, {255, 146, 0, 255},   {255, 146, 85, 255},
+    {255, 146, 170, 255}, {255, 146, 255, 255}, {255, 182, 0, 255},
+    {255, 182, 85, 255},  {255, 182, 170, 255}, {255, 182, 255, 255},
+    {255, 219, 0, 255},   {255, 219, 85, 255},  {255, 219, 170, 255},
+    {255, 219, 255, 255}, {255, 255, 0, 255},   {255, 255, 85, 255},
+    {255, 255, 170, 255}, {255, 255, 255, 255}, {0, 0, 0, 255},
+    {0, 0, 85, 255},      {0, 0, 170, 255},     {0, 0, 255, 255},
+    {0, 36, 0, 255},      {0, 36, 85, 255},     {0, 36, 170, 255},
+    {0, 36, 255, 255},    {0, 73, 0, 255},      {0, 73, 85, 255},
+    {0, 73, 170, 255},    {0, 73, 255, 255},    {0, 109, 0, 255},
+    {0, 109, 85, 255},    {0, 109, 170, 255},   {0, 109, 255, 255},
+    {0, 146, 0, 255},     {0, 146, 85, 255},    {0, 146, 170, 255},
+    {0, 146, 255, 255},   {0, 182, 0, 255},     {0, 182, 85, 255},
+    {0, 182, 170, 255},   {0, 182, 255, 255},   {0, 219, 0, 255},
+    {0, 219, 85, 255},    {0, 219, 170, 255},   {0, 219, 255, 255},
+    {0, 255, 0, 255},     {0, 255, 85, 255},    {0, 255, 170, 255},
+    {0, 255, 255, 255},   {85, 0, 0, 255},      {85, 0, 85, 255},
+    {85, 0, 170, 255},    {85, 0, 255, 255},    {85, 36, 0, 255},
+    {85, 36, 85, 255},    {85, 36, 170, 255},   {85, 36, 255, 255},
+    {85, 73, 0, 255},     {85, 73, 85, 255},    {85, 73, 170, 255},
+    {85, 73, 255, 255},   {85, 109, 0, 255},    {85, 109, 85, 255},
+    {85, 109, 170, 255},  {85, 109, 255, 255},  {85, 146, 0, 255},
+    {85, 146, 85, 255},   {85, 146, 170, 255},  {85, 146, 255, 255},
+    {85, 182, 0, 255},    {85, 182, 85, 255},   {85, 182, 170, 255},
+    {85, 182, 255, 255},  {85, 219, 0, 255},    {85, 219, 85, 255},
+    {85, 219, 170, 255},  {85, 219, 255, 255},  {85, 255, 0, 255},
+    {85, 255, 85, 255},   {85, 255, 170, 255},  {85, 255, 255, 255},
+    {170, 0, 0, 255},     {170, 0, 85, 255},    {170, 0, 170, 255},
+    {170, 0, 255, 255},   {170, 36, 0, 255},    {170, 36, 85, 255},
+    {170, 36, 170, 255},  {170, 36, 255, 255},  {170, 73, 0, 255},
+    {170, 73, 85, 255},   {170, 73, 170, 255},  {170, 73, 255, 255},
+    {170, 109, 0, 255},   {170, 109, 85, 255},  {170, 109, 170, 255},
+    {170, 109, 255, 255}, {170, 146, 0, 255},   {170, 146, 85, 255},
+    {170, 146, 170, 255}, {170, 146, 255, 255}, {170, 182, 0, 255},
+    {170, 182, 85, 255},  {170, 182, 170, 255}, {170, 182, 255, 255},
+    {170, 219, 0, 255},   {170, 219, 85, 255},  {170, 219, 170, 255},
+    {170, 219, 255, 255}, {170, 255, 0, 255},   {170, 255, 85, 255},
+    {170, 255, 170, 255}, {170, 255, 255, 255}, {255, 0, 0, 255},
+    {255, 0, 85, 255},    {255, 0, 170, 255},   {255, 0, 255, 255},
+    {255, 36, 0, 255},    {255, 36, 85, 255},   {255, 36, 170, 255},
+    {255, 36, 255, 255},  {255, 73, 0, 255},    {255, 73, 85, 255},
+    {255, 73, 170, 255},  {255, 73, 255, 255},  {255, 109, 0, 255},
+    {255, 109, 85, 255},  {255, 109, 170, 255}, {255, 109, 255, 255},
+    {255, 146, 0, 255},   {255, 146, 85, 255},  {255, 146, 170, 255},
+    {255, 146, 255, 255}, {255, 182, 0, 255},   {255, 182, 85, 255},
+    {255, 182, 170, 255}, {255, 182, 255, 255}, {255, 219, 0, 255},
+    {255, 219, 85, 255},  {255, 219, 170, 255}, {255, 219, 255, 255},
+    {255, 255, 0, 255},   {255, 255, 85, 255},  {255, 255, 170, 255},
+    {255, 255, 255, 255}};
+
+static const int default_palette_size =
+    (int)(sizeof(default_palette_colors) / sizeof(SDL_Color));
+
+#endif

venv/Include/site/python3.7/pygame/pgarrinter.h

@@ -0,0 +1,26 @@
+/* array structure interface version 3 declarations */
+
+#if !defined(PG_ARRAYINTER_HEADER)
+#define PG_ARRAYINTER_HEADER
+
+static const int PAI_CONTIGUOUS = 0x01;
+static const int PAI_FORTRAN = 0x02;
+static const int PAI_ALIGNED = 0x100;
+static const int PAI_NOTSWAPPED = 0x200;
+static const int PAI_WRITEABLE = 0x400;
+static const int PAI_ARR_HAS_DESCR = 0x800;
+
+typedef struct {
+    int two;              /* contains the integer 2 -- simple sanity check */
+    int nd;               /* number of dimensions */
+    char typekind;        /* kind in array -- character code of typestr */
+    int itemsize;         /* size of each element */
+    int flags;            /* flags indicating how the data should be */
+                          /* interpreted */
+    Py_intptr_t *shape;   /* A length-nd array of shape information */
+    Py_intptr_t *strides; /* A length-nd array of stride information */
+    void *data;           /* A pointer to the first element of the array */
+    PyObject *descr;      /* NULL or a data-description */
+} PyArrayInterface;
+
+#endif

venv/Include/site/python3.7/pygame/pgbufferproxy.h

@@ -0,0 +1,52 @@
+/*
+  pygame - Python Game Library
+  Copyright (C) 2000-2001  Pete Shinners
+  Copyright (C) 2007  Rene Dudfield, Richard Goedeken
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not, write to the Free
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  Pete Shinners
+  pete@shinners.org
+*/
+
+/* Bufferproxy module C api.
+   Depends on pygame.h being included first.
+ */
+#if !defined(PG_BUFPROXY_HEADER)
+
+#define PYGAMEAPI_BUFPROXY_NUMSLOTS 4
+#define PYGAMEAPI_BUFPROXY_FIRSTSLOT 0
+
+#if !(defined(PYGAMEAPI_BUFPROXY_INTERNAL) || defined(NO_PYGAME_C_API))
+static void *PgBUFPROXY_C_API[PYGAMEAPI_BUFPROXY_NUMSLOTS];
+
+typedef PyObject *(*_pgbufproxy_new_t)(PyObject *, getbufferproc);
+typedef PyObject *(*_pgbufproxy_get_obj_t)(PyObject *);
+typedef int (*_pgbufproxy_trip_t)(PyObject *);
+
+#define pgBufproxy_Type (*(PyTypeObject*)PgBUFPROXY_C_API[0])
+#define pgBufproxy_New (*(_pgbufproxy_new_t)PgBUFPROXY_C_API[1])
+#define pgBufproxy_GetParent \
+    (*(_pgbufproxy_get_obj_t)PgBUFPROXY_C_API[2])
+#define pgBufproxy_Trip (*(_pgbufproxy_trip_t)PgBUFPROXY_C_API[3])
+#define pgBufproxy_Check(x) ((x)->ob_type == (pgBufproxy_Type))
+#define import_pygame_bufferproxy() \
+    _IMPORT_PYGAME_MODULE(bufferproxy, BUFPROXY, PgBUFPROXY_C_API)
+
+#endif /* #if !(defined(PYGAMEAPI_BUFPROXY_INTERNAL) || ... */
+
+#define PG_BUFPROXY_HEADER
+
+#endif /* #if !defined(PG_BUFPROXY_HEADER) */

venv/Include/site/python3.7/pygame/pgcompat.h

@@ -0,0 +1,195 @@
+/* Python 2.x/3.x compitibility tools
+ */
+
+#if !defined(PGCOMPAT_H)
+#define PGCOMPAT_H
+
+#if PY_MAJOR_VERSION >= 3
+
+#define PY3 1
+
+/* Define some aliases for the removed PyInt_* functions */
+#define PyInt_Check(op) PyLong_Check(op)
+#define PyInt_FromString PyLong_FromString
+#define PyInt_FromUnicode PyLong_FromUnicode
+#define PyInt_FromLong PyLong_FromLong
+#define PyInt_FromSize_t PyLong_FromSize_t
+#define PyInt_FromSsize_t PyLong_FromSsize_t
+#define PyInt_AsLong PyLong_AsLong
+#define PyInt_AsSsize_t PyLong_AsSsize_t
+#define PyInt_AsUnsignedLongMask PyLong_AsUnsignedLongMask
+#define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+#define PyInt_AS_LONG PyLong_AS_LONG
+#define PyNumber_Int PyNumber_Long
+
+/* Weakrefs flags changed in 3.x */
+#define Py_TPFLAGS_HAVE_WEAKREFS 0
+
+/* Module init function returns new module instance. */
+#define MODINIT_RETURN(x) return x
+#define MODINIT_DEFINE(mod_name) PyMODINIT_FUNC PyInit_##mod_name (void)
+#define DECREF_MOD(mod) Py_DECREF (mod)
+
+/* Type header differs. */
+#define TYPE_HEAD(x,y) PyVarObject_HEAD_INIT(x,y)
+
+/* Text interface. Use unicode strings. */
+#define Text_Type PyUnicode_Type
+#define Text_Check PyUnicode_Check
+
+#ifndef PYPY_VERSION
+#define Text_FromLocale(s) PyUnicode_DecodeLocale((s), "strict")
+#else /* PYPY_VERSION */
+/* workaround: missing function for pypy */
+#define Text_FromLocale PyUnicode_FromString
+#endif /* PYPY_VERSION */
+
+#define Text_FromUTF8 PyUnicode_FromString
+#define Text_FromUTF8AndSize PyUnicode_FromStringAndSize
+#define Text_FromFormat PyUnicode_FromFormat
+#define Text_GetSize PyUnicode_GetSize
+#define Text_GET_SIZE PyUnicode_GET_SIZE
+
+/* Binary interface. Use bytes. */
+#define Bytes_Type PyBytes_Type
+#define Bytes_Check PyBytes_Check
+#define Bytes_Size PyBytes_Size
+#define Bytes_AsString PyBytes_AsString
+#define Bytes_AsStringAndSize PyBytes_AsStringAndSize
+#define Bytes_FromStringAndSize PyBytes_FromStringAndSize
+#define Bytes_FromFormat PyBytes_FromFormat
+#define Bytes_AS_STRING PyBytes_AS_STRING
+#define Bytes_GET_SIZE PyBytes_GET_SIZE
+#define Bytes_AsDecodeObject PyBytes_AsDecodedObject
+
+#define Object_Unicode PyObject_Str
+
+#define IsTextObj(x) (PyUnicode_Check(x) || PyBytes_Check(x))
+
+/* Renamed builtins */
+#define BUILTINS_MODULE "builtins"
+#define BUILTINS_UNICODE "str"
+#define BUILTINS_UNICHR "chr"
+
+/* Defaults for unicode file path encoding */
+#define UNICODE_DEF_FS_CODEC Py_FileSystemDefaultEncoding
+#if defined(MS_WIN32)
+#define UNICODE_DEF_FS_ERROR "replace"
+#else
+#define UNICODE_DEF_FS_ERROR "surrogateescape"
+#endif
+
+#else /* #if PY_MAJOR_VERSION >= 3 */
+
+#define PY3 0
+
+/* Module init function returns nothing. */
+#define MODINIT_RETURN(x) return
+#define MODINIT_DEFINE(mod_name) PyMODINIT_FUNC init##mod_name (void)
+#define DECREF_MOD(mod)
+
+/* Type header differs. */
+#define TYPE_HEAD(x,y)                          \
+    PyObject_HEAD_INIT(x)                       \
+    0,
+
+/* Text interface. Use ascii strings. */
+#define Text_Type PyString_Type
+#define Text_Check PyString_Check
+#define Text_FromLocale PyString_FromString
+#define Text_FromUTF8 PyString_FromString
+#define Text_FromUTF8AndSize PyString_FromStringAndSize
+#define Text_FromFormat PyString_FromFormat
+#define Text_GetSize PyString_GetSize
+#define Text_GET_SIZE PyString_GET_SIZE
+
+/* Binary interface. Use ascii strings. */
+#define Bytes_Type PyString_Type
+#define Bytes_Check PyString_Check
+#define Bytes_Size PyString_Size
+#define Bytes_AsString PyString_AsString
+#define Bytes_AsStringAndSize PyString_AsStringAndSize
+#define Bytes_FromStringAndSize PyString_FromStringAndSize
+#define Bytes_FromFormat PyString_FromFormat
+#define Bytes_AS_STRING PyString_AS_STRING
+#define Bytes_GET_SIZE PyString_GET_SIZE
+#define Bytes_AsDecodedObject PyString_AsDecodedObject
+
+#define Object_Unicode PyObject_Unicode
+
+/* Renamed builtins */
+#define BUILTINS_MODULE "__builtin__"
+#define BUILTINS_UNICODE "unicode"
+#define BUILTINS_UNICHR "unichr"
+
+/* Defaults for unicode file path encoding */
+#define UNICODE_DEF_FS_CODEC Py_FileSystemDefaultEncoding
+#define UNICODE_DEF_FS_ERROR "strict"
+
+#endif /* #if PY_MAJOR_VERSION >= 3 */
+
+#define PY2 (!PY3)
+
+#define MODINIT_ERROR MODINIT_RETURN (NULL)
+
+/* Module state. These macros are used to define per-module macros.
+ * v - global state variable (Python 2.x)
+ * s - global state structure (Python 3.x)
+ */
+#define PY2_GETSTATE(v) (&(v))
+#define PY3_GETSTATE(s, m) ((struct s *) PyModule_GetState (m))
+
+/* Pep 3123: Making PyObject_HEAD conform to standard C */
+#if !defined(Py_TYPE)
+#define Py_TYPE(o)    (((PyObject *)(o))->ob_type)
+#define Py_REFCNT(o)  (((PyObject *)(o))->ob_refcnt)
+#define Py_SIZE(o)    (((PyVarObject *)(o))->ob_size)
+#endif
+
+/* Encode a unicode file path */
+#define Unicode_AsEncodedPath(u) \
+    PyUnicode_AsEncodedString ((u), UNICODE_DEF_FS_CODEC, UNICODE_DEF_FS_ERROR)
+
+#define RELATIVE_MODULE(m) ("." m)
+
+#define HAVE_OLD_BUFPROTO PY2
+
+#if !defined(PG_ENABLE_OLDBUF)  /* allow for command line override */
+#if HAVE_OLD_BUFPROTO
+#define PG_ENABLE_OLDBUF 1
+#else
+#define PG_ENABLE_OLDBUF 0
+#endif
+#endif
+
+#ifndef Py_TPFLAGS_HAVE_NEWBUFFER
+#define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+
+#ifndef Py_TPFLAGS_HAVE_CLASS
+#define Py_TPFLAGS_HAVE_CLASS 0
+#endif
+
+#ifndef Py_TPFLAGS_CHECKTYPES
+#define Py_TPFLAGS_CHECKTYPES 0
+#endif
+
+#if PY_VERSION_HEX >= 0x03020000
+#define Slice_GET_INDICES_EX(slice, length, start, stop, step, slicelength) \
+    PySlice_GetIndicesEx(slice, length, start, stop, step, slicelength)
+#else
+#define Slice_GET_INDICES_EX(slice, length, start, stop, step, slicelength) \
+    PySlice_GetIndicesEx((PySliceObject *)(slice), length, \
+                         start, stop, step, slicelength)
+#endif
+
+/* Support new buffer protocol? */
+#if !defined(PG_ENABLE_NEWBUF)  /* allow for command line override */
+#if !defined(PYPY_VERSION)
+#define PG_ENABLE_NEWBUF 1
+#else
+#define PG_ENABLE_NEWBUF 0
+#endif
+#endif
+
+#endif /* #if !defined(PGCOMPAT_H) */

venv/Include/site/python3.7/pygame/pgopengl.h

@@ -0,0 +1,16 @@
+#if !defined(PGOPENGL_H)
+#define PGOPENGL_H
+
+/** This header includes definitions of Opengl functions as pointer types for
+ ** use with the SDL function SDL_GL_GetProcAddress.
+ **/
+
+#if defined(_WIN32)
+#define GL_APIENTRY __stdcall
+#else
+#define GL_APIENTRY
+#endif
+
+typedef void (GL_APIENTRY *GL_glReadPixels_Func)(int, int, int, int, unsigned int, unsigned int, void*);
+
+#endif

venv/Include/site/python3.7/pygame/pygame.h

@@ -0,0 +1,34 @@
+/*
+    pygame - Python Game Library
+    Copyright (C) 2000-2001  Pete Shinners
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Pete Shinners
+    pete@shinners.org
+*/
+
+/* To allow the Pygame C api to be globally shared by all code within an
+ * extension module built from multiple C files,  only include the pygame.h
+ * header within the top level C file, the one which calls the
+ * 'import_pygame_*' macros. All other C source files of the module should
+ * include _pygame.h instead. 
+ */
+#ifndef PYGAME_H
+#define PYGAME_H
+
+#include "_pygame.h"
+
+#endif

venv/Include/site/python3.7/pygame/scrap.h

@@ -0,0 +1,143 @@
+/*
+    pygame - Python Game Library
+    Copyright (C) 2006, 2007 Rene Dudfield, Marcus von Appen
+
+    Originally put in the public domain by Sam Lantinga.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/* This is unconditionally defined in Python.h */
+#if defined(_POSIX_C_SOURCE)
+#undef _POSIX_C_SOURCE
+#endif
+
+#include <Python.h>
+
+/* Handle clipboard text and data in arbitrary formats */
+
+/**
+ * Predefined supported pygame scrap types.
+ */
+#define PYGAME_SCRAP_TEXT "text/plain"
+#define PYGAME_SCRAP_BMP "image/bmp"
+#define PYGAME_SCRAP_PPM "image/ppm"
+#define PYGAME_SCRAP_PBM "image/pbm"
+
+/**
+ * The supported scrap clipboard types.
+ *
+ * This is only relevant in a X11 environment, which supports mouse
+ * selections as well. For Win32 and MacOS environments the default
+ * clipboard is used, no matter what value is passed.
+ */
+typedef enum
+{
+    SCRAP_CLIPBOARD,
+    SCRAP_SELECTION /* only supported in X11 environments. */
+} ScrapClipType;
+
+/**
+ * Macro for initialization checks.
+ */
+#define PYGAME_SCRAP_INIT_CHECK() \
+    if(!pygame_scrap_initialized()) \
+        return (PyErr_SetString (pgExc_SDLError, \
+                                 "scrap system not initialized."), NULL)
+
+/**
+ * \brief Checks, whether the pygame scrap module was initialized.
+ *
+ * \return 1 if the modules was initialized, 0 otherwise.
+ */
+extern int
+pygame_scrap_initialized (void);
+
+/**
+ * \brief Initializes the pygame scrap module internals. Call this before any
+ *        other method.
+ *
+ * \return 1 on successful initialization, 0 otherwise.
+ */
+extern int
+pygame_scrap_init (void);
+
+/**
+ * \brief Checks, whether the pygame window lost the clipboard focus or not.
+ *
+ * \return 1 if the window lost the focus, 0 otherwise.
+ */
+extern int
+pygame_scrap_lost (void);
+
+/**
+ * \brief Places content of a specific type into the clipboard.
+ *
+ * \note For X11 the following notes are important: The following types
+ *       are reserved for internal usage and thus will throw an error on
+ *       setting them: "TIMESTAMP", "TARGETS", "SDL_SELECTION".
+ *       Setting PYGAME_SCRAP_TEXT ("text/plain") will also automatically
+ *       set the X11 types "STRING" (XA_STRING), "TEXT" and "UTF8_STRING".
+ *
+ *       For Win32 the following notes are important: Setting
+ *       PYGAME_SCRAP_TEXT ("text/plain") will also automatically set
+ *       the Win32 type "TEXT" (CF_TEXT).
+ *
+ *       For QNX the following notes are important: Setting
+ *       PYGAME_SCRAP_TEXT ("text/plain") will also automatically set
+ *       the QNX type "TEXT" (Ph_CL_TEXT).
+ *
+ * \param type The type of the content.
+ * \param srclen The length of the content.
+ * \param src The NULL terminated content.
+ * \return 1, if the content could be successfully pasted into the clipboard,
+ *         0 otherwise.
+ */
+extern int
+pygame_scrap_put (char *type, int srclen, char *src);
+
+/**
+ * \brief Gets the current content from the clipboard.
+ *
+ * \note The received content does not need to be the content previously
+ *       placed in the clipboard using pygame_put_scrap(). See the
+ *       pygame_put_scrap() notes for more details.
+ *
+ * \param type The type of the content to receive.
+ * \param count The size of the returned content.
+ * \return The content or NULL in case of an error or if no content of the
+ *         specified type was available.
+ */
+extern char*
+pygame_scrap_get (char *type, unsigned long *count);
+
+/**
+ * \brief Gets the currently available content types from the clipboard.
+ *
+ * \return The different available content types or NULL in case of an
+ *         error or if no content type is available.
+ */
+extern char**
+pygame_scrap_get_types (void);
+
+/**
+ * \brief Checks whether content for the specified scrap type is currently
+ * available in the clipboard.
+ *
+ * \param type The type to check for.
+ * \return 1, if there is content and 0 otherwise.
+ */
+extern int
+pygame_scrap_contains (char *type);

venv/Include/site/python3.7/pygame/surface.h

@@ -0,0 +1,383 @@
+/*
+  pygame - Python Game Library
+  Copyright (C) 2000-2001  Pete Shinners
+  Copyright (C) 2007 Marcus von Appen
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not, write to the Free
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+  Pete Shinners
+  pete@shinners.org
+*/
+
+#ifndef SURFACE_H
+#define SURFACE_H
+
+/* This is defined in SDL.h */
+#if defined(_POSIX_C_SOURCE)
+#undef _POSIX_C_SOURCE
+#endif
+
+#include <SDL.h>
+#include "pygame.h"
+
+/* Blend modes */
+#define PYGAME_BLEND_ADD  0x1
+#define PYGAME_BLEND_SUB  0x2
+#define PYGAME_BLEND_MULT 0x3
+#define PYGAME_BLEND_MIN  0x4
+#define PYGAME_BLEND_MAX  0x5
+
+#define PYGAME_BLEND_RGB_ADD  0x1
+#define PYGAME_BLEND_RGB_SUB  0x2
+#define PYGAME_BLEND_RGB_MULT 0x3
+#define PYGAME_BLEND_RGB_MIN  0x4
+#define PYGAME_BLEND_RGB_MAX  0x5
+
+#define PYGAME_BLEND_RGBA_ADD  0x6
+#define PYGAME_BLEND_RGBA_SUB  0x7
+#define PYGAME_BLEND_RGBA_MULT 0x8
+#define PYGAME_BLEND_RGBA_MIN  0x9
+#define PYGAME_BLEND_RGBA_MAX  0x10
+#define PYGAME_BLEND_PREMULTIPLIED  0x11
+
+
+
+
+
+#if SDL_BYTEORDER == SDL_LIL_ENDIAN
+#define GET_PIXEL_24(b) (b[0] + (b[1] << 8) + (b[2] << 16))
+#else
+#define GET_PIXEL_24(b) (b[2] + (b[1] << 8) + (b[0] << 16))
+#endif
+
+#define GET_PIXEL(pxl, bpp, source)               \
+    switch (bpp)                                  \
+    {                                             \
+    case 2:                                       \
+        pxl = *((Uint16 *) (source));             \
+        break;                                    \
+    case 4:                                       \
+        pxl = *((Uint32 *) (source));             \
+        break;                                    \
+    default:                                      \
+    {                                             \
+        Uint8 *b = (Uint8 *) source;              \
+        pxl = GET_PIXEL_24(b);                    \
+    }                                             \
+    break;                                        \
+    }
+
+#if IS_SDLv1
+#define GET_PIXELVALS(_sR, _sG, _sB, _sA, px, fmt, ppa)               \
+    _sR = ((px & fmt->Rmask) >> fmt->Rshift);                         \
+    _sR = (_sR << fmt->Rloss) + (_sR >> (8 - (fmt->Rloss << 1)));     \
+    _sG = ((px & fmt->Gmask) >> fmt->Gshift);                         \
+    _sG = (_sG << fmt->Gloss) + (_sG >> (8 - (fmt->Gloss << 1)));     \
+    _sB = ((px & fmt->Bmask) >> fmt->Bshift);                         \
+    _sB = (_sB << fmt->Bloss) + (_sB >> (8 - (fmt->Bloss << 1)));     \
+    if (ppa)                                                          \
+    {                                                                 \
+        _sA = ((px & fmt->Amask) >> fmt->Ashift);                     \
+        _sA = (_sA << fmt->Aloss) + (_sA >> (8 - (fmt->Aloss << 1))); \
+    }                                                                 \
+    else                                                              \
+    {                                                                 \
+        _sA = 255;                                                    \
+    }
+
+#define GET_PIXELVALS_1(sr, sg, sb, sa, _src, _fmt)    \
+    sr = _fmt->palette->colors[*((Uint8 *) (_src))].r; \
+    sg = _fmt->palette->colors[*((Uint8 *) (_src))].g; \
+    sb = _fmt->palette->colors[*((Uint8 *) (_src))].b; \
+    sa = 255;
+
+/* For 1 byte palette pixels */
+#define SET_PIXELVAL(px, fmt, _dR, _dG, _dB, _dA) \
+    *(px) = (Uint8) SDL_MapRGB(fmt, _dR, _dG, _dB)
+#else /* IS_SDLv2 */
+#define GET_PIXELVALS(_sR, _sG, _sB, _sA, px, fmt, ppa)   \
+    SDL_GetRGBA(px, fmt, &(_sR), &(_sG), &(_sB), &(_sA)); \
+    if (!ppa) {                                           \
+        _sA = 255;                                        \
+    }
+
+#define GET_PIXELVALS_1(sr, sg, sb, sa, _src, _fmt)    \
+    sr = _fmt->palette->colors[*((Uint8 *) (_src))].r; \
+    sg = _fmt->palette->colors[*((Uint8 *) (_src))].g; \
+    sb = _fmt->palette->colors[*((Uint8 *) (_src))].b; \
+    sa = 255;
+
+/* For 1 byte palette pixels */
+#define SET_PIXELVAL(px, fmt, _dR, _dG, _dB, _dA) \
+    *(px) = (Uint8) SDL_MapRGBA(fmt, _dR, _dG, _dB, _dA)
+#endif /* IS_SDLv2 */
+
+
+
+
+
+
+
+
+#if SDL_BYTEORDER == SDL_LIL_ENDIAN
+#define SET_OFFSETS_24(or, og, ob, fmt)           \
+    {                                             \
+    or = (fmt->Rshift == 0 ? 0 :                  \
+          fmt->Rshift == 8 ? 1 :                  \
+                         2   );                   \
+    og = (fmt->Gshift == 0 ? 0 :                  \
+          fmt->Gshift == 8 ? 1 :                  \
+                         2   );                   \
+    ob = (fmt->Bshift == 0 ? 0 :                  \
+          fmt->Bshift == 8 ? 1 :                  \
+                         2   );                   \
+    }
+
+#define SET_OFFSETS_32(or, og, ob, fmt)           \
+    {                                             \
+    or = (fmt->Rshift == 0  ? 0 :                 \
+          fmt->Rshift == 8  ? 1 :                 \
+          fmt->Rshift == 16 ? 2 :                 \
+                          3   );                  \
+    og = (fmt->Gshift == 0  ? 0 :                 \
+          fmt->Gshift == 8  ? 1 :                 \
+          fmt->Gshift == 16 ? 2 :                 \
+                          3   );                  \
+    ob = (fmt->Bshift == 0  ? 0 :                 \
+          fmt->Bshift == 8  ? 1 :                 \
+          fmt->Bshift == 16 ? 2 :                 \
+                          3   );                  \
+    }
+#else
+#define SET_OFFSETS_24(or, og, ob, fmt)           \
+    {                                             \
+    or = (fmt->Rshift == 0 ? 2 :                  \
+          fmt->Rshift == 8 ? 1 :                  \
+                         0   );                   \
+    og = (fmt->Gshift == 0 ? 2 :                  \
+          fmt->Gshift == 8 ? 1 :                  \
+                         0   );                   \
+    ob = (fmt->Bshift == 0 ? 2 :                  \
+          fmt->Bshift == 8 ? 1 :                  \
+                         0   );                   \
+    }
+
+#define SET_OFFSETS_32(or, og, ob, fmt)           \
+    {                                             \
+    or = (fmt->Rshift == 0  ? 3 :                 \
+          fmt->Rshift == 8  ? 2 :                 \
+          fmt->Rshift == 16 ? 1 :                 \
+                          0   );                  \
+    og = (fmt->Gshift == 0  ? 3 :                 \
+          fmt->Gshift == 8  ? 2 :                 \
+          fmt->Gshift == 16 ? 1 :                 \
+                          0   );                  \
+    ob = (fmt->Bshift == 0  ? 3 :                 \
+          fmt->Bshift == 8  ? 2 :                 \
+          fmt->Bshift == 16 ? 1 :                 \
+                          0   );                  \
+    }
+#endif
+
+
+#define CREATE_PIXEL(buf, r, g, b, a, bp, ft)     \
+    switch (bp)                                   \
+    {                                             \
+    case 2:                                       \
+        *((Uint16 *) (buf)) =                     \
+            ((r >> ft->Rloss) << ft->Rshift) |    \
+            ((g >> ft->Gloss) << ft->Gshift) |    \
+            ((b >> ft->Bloss) << ft->Bshift) |    \
+            ((a >> ft->Aloss) << ft->Ashift);     \
+        break;                                    \
+    case 4:                                       \
+        *((Uint32 *) (buf)) =                     \
+            ((r >> ft->Rloss) << ft->Rshift) |    \
+            ((g >> ft->Gloss) << ft->Gshift) |    \
+            ((b >> ft->Bloss) << ft->Bshift) |    \
+            ((a >> ft->Aloss) << ft->Ashift);     \
+        break;                                    \
+    }
+
+/* Pretty good idea from Tom Duff :-). */
+#define LOOP_UNROLLED4(code, n, width) \
+    n = (width + 3) / 4;               \
+    switch (width & 3)                 \
+    {                                  \
+    case 0: do { code;                 \
+        case 3: code;                  \
+        case 2: code;                  \
+        case 1: code;                  \
+        } while (--n > 0);             \
+    }
+
+/* Used in the srcbpp == dstbpp == 1 blend functions */
+#define REPEAT_3(code) \
+    code;              \
+    code;              \
+    code;
+
+#define REPEAT_4(code) \
+    code;              \
+    code;              \
+    code;              \
+    code;
+
+
+#define BLEND_ADD(tmp, sR, sG, sB, sA, dR, dG, dB, dA)  \
+    tmp = dR + sR; dR = (tmp <= 255 ? tmp : 255);       \
+    tmp = dG + sG; dG = (tmp <= 255 ? tmp : 255);       \
+    tmp = dB + sB; dB = (tmp <= 255 ? tmp : 255);
+
+#define BLEND_SUB(tmp, sR, sG, sB, sA, dR, dG, dB, dA) \
+    tmp = dR - sR; dR = (tmp >= 0 ? tmp : 0);          \
+    tmp = dG - sG; dG = (tmp >= 0 ? tmp : 0);          \
+    tmp = dB - sB; dB = (tmp >= 0 ? tmp : 0);
+
+#define BLEND_MULT(sR, sG, sB, sA, dR, dG, dB, dA) \
+    dR = (dR && sR) ? (dR * sR) >> 8 : 0;          \
+    dG = (dG && sG) ? (dG * sG) >> 8 : 0;          \
+    dB = (dB && sB) ? (dB * sB) >> 8 : 0;
+
+#define BLEND_MIN(sR, sG, sB, sA, dR, dG, dB, dA) \
+    if(sR < dR) { dR = sR; }                      \
+    if(sG < dG) { dG = sG; }                      \
+    if(sB < dB) { dB = sB; }
+
+#define BLEND_MAX(sR, sG, sB, sA, dR, dG, dB, dA) \
+    if(sR > dR) { dR = sR; }                      \
+    if(sG > dG) { dG = sG; }                      \
+    if(sB > dB) { dB = sB; }
+
+
+
+
+
+
+#define BLEND_RGBA_ADD(tmp, sR, sG, sB, sA, dR, dG, dB, dA)  \
+    tmp = dR + sR; dR = (tmp <= 255 ? tmp : 255);       \
+    tmp = dG + sG; dG = (tmp <= 255 ? tmp : 255);       \
+    tmp = dB + sB; dB = (tmp <= 255 ? tmp : 255);       \
+    tmp = dA + sA; dA = (tmp <= 255 ? tmp : 255);
+
+#define BLEND_RGBA_SUB(tmp, sR, sG, sB, sA, dR, dG, dB, dA) \
+    tmp = dR - sR; dR = (tmp >= 0 ? tmp : 0);          \
+    tmp = dG - sG; dG = (tmp >= 0 ? tmp : 0);          \
+    tmp = dB - sB; dB = (tmp >= 0 ? tmp : 0);          \
+    tmp = dA - sA; dA = (tmp >= 0 ? tmp : 0);
+
+#define BLEND_RGBA_MULT(sR, sG, sB, sA, dR, dG, dB, dA) \
+    dR = (dR && sR) ? (dR * sR) >> 8 : 0;          \
+    dG = (dG && sG) ? (dG * sG) >> 8 : 0;          \
+    dB = (dB && sB) ? (dB * sB) >> 8 : 0;          \
+    dA = (dA && sA) ? (dA * sA) >> 8 : 0;
+
+#define BLEND_RGBA_MIN(sR, sG, sB, sA, dR, dG, dB, dA) \
+    if(sR < dR) { dR = sR; }                      \
+    if(sG < dG) { dG = sG; }                      \
+    if(sB < dB) { dB = sB; }                      \
+    if(sA < dA) { dA = sA; }
+
+#define BLEND_RGBA_MAX(sR, sG, sB, sA, dR, dG, dB, dA) \
+    if(sR > dR) { dR = sR; }                      \
+    if(sG > dG) { dG = sG; }                      \
+    if(sB > dB) { dB = sB; }                      \
+    if(sA > dA) { dA = sA; }
+
+
+
+
+
+
+
+
+
+
+
+#if 1
+/* Choose an alpha blend equation. If the sign is preserved on a right shift
+ * then use a specialized, faster, equation. Otherwise a more general form,
+ * where all additions are done before the shift, is needed.
+*/
+#if (-1 >> 1) < 0
+#define ALPHA_BLEND_COMP(sC, dC, sA) ((((sC - dC) * sA + sC) >> 8) + dC)
+#else
+#define ALPHA_BLEND_COMP(sC, dC, sA) (((dC << 8) + (sC - dC) * sA + sC) >> 8)
+#endif
+
+#define ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB, dA) \
+    do {                                            \
+        if (dA)                                     \
+        {                                           \
+            dR = ALPHA_BLEND_COMP(sR, dR, sA);      \
+            dG = ALPHA_BLEND_COMP(sG, dG, sA);      \
+            dB = ALPHA_BLEND_COMP(sB, dB, sA);      \
+            dA = sA + dA - ((sA * dA) / 255);       \
+        }                                           \
+        else                                        \
+        {                                           \
+            dR = sR;                                \
+            dG = sG;                                \
+            dB = sB;                                \
+            dA = sA;                                \
+        }                                           \
+    } while(0)
+
+#define ALPHA_BLEND_PREMULTIPLIED_COMP(sC, dC, sA) (sC + dC - ((dC * sA) >> 8))
+
+#define ALPHA_BLEND_PREMULTIPLIED(tmp, sR, sG, sB, sA, dR, dG, dB, dA) \
+    do {                                            \
+            tmp = ALPHA_BLEND_PREMULTIPLIED_COMP(sR, dR, sA); dR = (tmp > 255 ? 255 : tmp); \
+            tmp = ALPHA_BLEND_PREMULTIPLIED_COMP(sG, dG, sA); dG = (tmp > 255 ? 255 : tmp); \
+            tmp = ALPHA_BLEND_PREMULTIPLIED_COMP(sB, dB, sA); dB = (tmp > 255 ? 255 : tmp); \
+            dA = sA + dA - ((sA * dA) / 255);       \
+    } while(0)
+#elif 0
+
+#define ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB, dA)    \
+    do {                                               \
+        if(sA){                                        \
+            if(dA && sA < 255){                        \
+                int dContrib = dA*(255 - sA)/255;      \
+                dA = sA+dA - ((sA*dA)/255);            \
+                dR = (dR*dContrib + sR*sA)/dA;         \
+                dG = (dG*dContrib + sG*sA)/dA;         \
+                dB = (dB*dContrib + sB*sA)/dA;         \
+            }else{                                     \
+                dR = sR;                               \
+                dG = sG;                               \
+                dB = sB;                               \
+                dA = sA;                               \
+            }                                          \
+        }                                              \
+    } while(0)
+#endif
+
+int
+surface_fill_blend (SDL_Surface *surface, SDL_Rect *rect, Uint32 color,
+                    int blendargs);
+
+void
+surface_respect_clip_rect (SDL_Surface *surface, SDL_Rect *rect);
+
+int
+pygame_AlphaBlit (SDL_Surface * src, SDL_Rect * srcrect,
+                  SDL_Surface * dst, SDL_Rect * dstrect, int the_args);
+
+int
+pygame_Blit (SDL_Surface * src, SDL_Rect * srcrect,
+             SDL_Surface * dst, SDL_Rect * dstrect, int the_args);
+
+#endif /* SURFACE_H */

venv/Lib/site-packages/easy-install.pth

@@ -0,0 +1,2 @@
+./setuptools-40.8.0-py3.7.egg
+./pip-19.0.3-py3.7.egg

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/EGG-INFO/PKG-INFO

@@ -0,0 +1,73 @@
+Metadata-Version: 1.2
+Name: pip
+Version: 19.0.3
+Summary: The PyPA recommended tool for installing Python packages.
+Home-page: https://pip.pypa.io/
+Author: The pip developers
+Author-email: pypa-dev@groups.google.com
+License: MIT
+Description: pip - The Python Package Installer
+        ==================================
+        
+        .. image:: https://img.shields.io/pypi/v/pip.svg
+           :target: https://pypi.org/project/pip/
+        
+        .. image:: https://readthedocs.org/projects/pip/badge/?version=latest
+           :target: https://pip.pypa.io/en/latest
+        
+        pip is the `package installer`_ for Python. You can use pip to install packages from the `Python Package Index`_ and other indexes.
+        
+        Please take a look at our documentation for how to install and use pip:
+        
+        * `Installation`_
+        * `Usage`_
+        * `Release notes`_
+        
+        If you find bugs, need help, or want to talk to the developers please use our mailing lists or chat rooms:
+        
+        * `Issue tracking`_
+        * `Discourse channel`_
+        * `User IRC`_
+        
+        If you want to get involved head over to GitHub to get the source code and feel free to jump on the developer mailing lists and chat rooms:
+        
+        * `GitHub page`_
+        * `Dev mailing list`_
+        * `Dev IRC`_
+        
+        Code of Conduct
+        ---------------
+        
+        Everyone interacting in the pip project's codebases, issue trackers, chat
+        rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+        
+        .. _package installer: https://packaging.python.org/en/latest/current/
+        .. _Python Package Index: https://pypi.org
+        .. _Installation: https://pip.pypa.io/en/stable/installing.html
+        .. _Usage: https://pip.pypa.io/en/stable/
+        .. _Release notes: https://pip.pypa.io/en/stable/news.html
+        .. _GitHub page: https://github.com/pypa/pip
+        .. _Issue tracking: https://github.com/pypa/pip/issues
+        .. _Discourse channel: https://discuss.python.org/c/packaging
+        .. _Dev mailing list: https://groups.google.com/forum/#!forum/pypa-dev
+        .. _User IRC: https://webchat.freenode.net/?channels=%23pypa
+        .. _Dev IRC: https://webchat.freenode.net/?channels=%23pypa-dev
+        .. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+        
+Keywords: distutils easy_install egg setuptools wheel virtualenv
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Topic :: Software Development :: Build Tools
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Requires-Python: >=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/EGG-INFO/SOURCES.txt

@@ -0,0 +1,391 @@
+AUTHORS.txt
+LICENSE.txt
+MANIFEST.in
+NEWS.rst
+README.rst
+pyproject.toml
+setup.cfg
+setup.py
+docs/pip_sphinxext.py
+docs/html/conf.py
+docs/html/cookbook.rst
+docs/html/index.rst
+docs/html/installing.rst
+docs/html/logic.rst
+docs/html/news.rst
+docs/html/quickstart.rst
+docs/html/usage.rst
+docs/html/user_guide.rst
+docs/html/development/configuration.rst
+docs/html/development/contributing.rst
+docs/html/development/getting-started.rst
+docs/html/development/index.rst
+docs/html/development/release-process.rst
+docs/html/development/vendoring-policy.rst
+docs/html/reference/index.rst
+docs/html/reference/pip.rst
+docs/html/reference/pip_check.rst
+docs/html/reference/pip_config.rst
+docs/html/reference/pip_download.rst
+docs/html/reference/pip_freeze.rst
+docs/html/reference/pip_hash.rst
+docs/html/reference/pip_install.rst
+docs/html/reference/pip_list.rst
+docs/html/reference/pip_search.rst
+docs/html/reference/pip_show.rst
+docs/html/reference/pip_uninstall.rst
+docs/html/reference/pip_wheel.rst
+docs/man/index.rst
+docs/man/commands/check.rst
+docs/man/commands/config.rst
+docs/man/commands/download.rst
+docs/man/commands/freeze.rst
+docs/man/commands/hash.rst
+docs/man/commands/help.rst
+docs/man/commands/install.rst
+docs/man/commands/list.rst
+docs/man/commands/search.rst
+docs/man/commands/show.rst
+docs/man/commands/uninstall.rst
+docs/man/commands/wheel.rst
+src/pip/__init__.py
+src/pip/__main__.py
+src/pip.egg-info/PKG-INFO
+src/pip.egg-info/SOURCES.txt
+src/pip.egg-info/dependency_links.txt
+src/pip.egg-info/entry_points.txt
+src/pip.egg-info/not-zip-safe
+src/pip.egg-info/top_level.txt
+src/pip/_internal/__init__.py
+src/pip/_internal/build_env.py
+src/pip/_internal/cache.py
+src/pip/_internal/configuration.py
+src/pip/_internal/download.py
+src/pip/_internal/exceptions.py
+src/pip/_internal/index.py
+src/pip/_internal/locations.py
+src/pip/_internal/pep425tags.py
+src/pip/_internal/pyproject.py
+src/pip/_internal/resolve.py
+src/pip/_internal/wheel.py
+src/pip/_internal/cli/__init__.py
+src/pip/_internal/cli/autocompletion.py
+src/pip/_internal/cli/base_command.py
+src/pip/_internal/cli/cmdoptions.py
+src/pip/_internal/cli/main_parser.py
+src/pip/_internal/cli/parser.py
+src/pip/_internal/cli/status_codes.py
+src/pip/_internal/commands/__init__.py
+src/pip/_internal/commands/check.py
+src/pip/_internal/commands/completion.py
+src/pip/_internal/commands/configuration.py
+src/pip/_internal/commands/download.py
+src/pip/_internal/commands/freeze.py
+src/pip/_internal/commands/hash.py
+src/pip/_internal/commands/help.py
+src/pip/_internal/commands/install.py
+src/pip/_internal/commands/list.py
+src/pip/_internal/commands/search.py
+src/pip/_internal/commands/show.py
+src/pip/_internal/commands/uninstall.py
+src/pip/_internal/commands/wheel.py
+src/pip/_internal/models/__init__.py
+src/pip/_internal/models/candidate.py
+src/pip/_internal/models/format_control.py
+src/pip/_internal/models/index.py
+src/pip/_internal/models/link.py
+src/pip/_internal/operations/__init__.py
+src/pip/_internal/operations/check.py
+src/pip/_internal/operations/freeze.py
+src/pip/_internal/operations/prepare.py
+src/pip/_internal/req/__init__.py
+src/pip/_internal/req/constructors.py
+src/pip/_internal/req/req_file.py
+src/pip/_internal/req/req_install.py
+src/pip/_internal/req/req_set.py
+src/pip/_internal/req/req_tracker.py
+src/pip/_internal/req/req_uninstall.py
+src/pip/_internal/utils/__init__.py
+src/pip/_internal/utils/appdirs.py
+src/pip/_internal/utils/compat.py
+src/pip/_internal/utils/deprecation.py
+src/pip/_internal/utils/encoding.py
+src/pip/_internal/utils/filesystem.py
+src/pip/_internal/utils/glibc.py
+src/pip/_internal/utils/hashes.py
+src/pip/_internal/utils/logging.py
+src/pip/_internal/utils/misc.py
+src/pip/_internal/utils/models.py
+src/pip/_internal/utils/outdated.py
+src/pip/_internal/utils/packaging.py
+src/pip/_internal/utils/setuptools_build.py
+src/pip/_internal/utils/temp_dir.py
+src/pip/_internal/utils/typing.py
+src/pip/_internal/utils/ui.py
+src/pip/_internal/vcs/__init__.py
+src/pip/_internal/vcs/bazaar.py
+src/pip/_internal/vcs/git.py
+src/pip/_internal/vcs/mercurial.py
+src/pip/_internal/vcs/subversion.py
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+src/pip/_vendor/__init__.py
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+src/pip/_vendor/appdirs.py
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+src/pip/_vendor/cachecontrol/cache.py
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+src/pip/_vendor/cachecontrol/caches/file_cache.py
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+src/pip/_vendor/html5lib/_trie/py.py
+src/pip/_vendor/html5lib/filters/__init__.py
+src/pip/_vendor/html5lib/filters/alphabeticalattributes.py
+src/pip/_vendor/html5lib/filters/base.py
+src/pip/_vendor/html5lib/filters/inject_meta_charset.py
+src/pip/_vendor/html5lib/filters/lint.py
+src/pip/_vendor/html5lib/filters/optionaltags.py
+src/pip/_vendor/html5lib/filters/sanitizer.py
+src/pip/_vendor/html5lib/filters/whitespace.py
+src/pip/_vendor/html5lib/treeadapters/__init__.py
+src/pip/_vendor/html5lib/treeadapters/genshi.py
+src/pip/_vendor/html5lib/treeadapters/sax.py
+src/pip/_vendor/html5lib/treebuilders/__init__.py
+src/pip/_vendor/html5lib/treebuilders/base.py
+src/pip/_vendor/html5lib/treebuilders/dom.py
+src/pip/_vendor/html5lib/treebuilders/etree.py
+src/pip/_vendor/html5lib/treebuilders/etree_lxml.py
+src/pip/_vendor/html5lib/treewalkers/__init__.py
+src/pip/_vendor/html5lib/treewalkers/base.py
+src/pip/_vendor/html5lib/treewalkers/dom.py
+src/pip/_vendor/html5lib/treewalkers/etree.py
+src/pip/_vendor/html5lib/treewalkers/etree_lxml.py
+src/pip/_vendor/html5lib/treewalkers/genshi.py
+src/pip/_vendor/idna/LICENSE.rst
+src/pip/_vendor/idna/__init__.py
+src/pip/_vendor/idna/codec.py
+src/pip/_vendor/idna/compat.py
+src/pip/_vendor/idna/core.py
+src/pip/_vendor/idna/idnadata.py
+src/pip/_vendor/idna/intranges.py
+src/pip/_vendor/idna/package_data.py
+src/pip/_vendor/idna/uts46data.py
+src/pip/_vendor/lockfile/LICENSE
+src/pip/_vendor/lockfile/__init__.py
+src/pip/_vendor/lockfile/linklockfile.py
+src/pip/_vendor/lockfile/mkdirlockfile.py
+src/pip/_vendor/lockfile/pidlockfile.py
+src/pip/_vendor/lockfile/sqlitelockfile.py
+src/pip/_vendor/lockfile/symlinklockfile.py
+src/pip/_vendor/msgpack/COPYING
+src/pip/_vendor/msgpack/__init__.py
+src/pip/_vendor/msgpack/_version.py
+src/pip/_vendor/msgpack/exceptions.py
+src/pip/_vendor/msgpack/fallback.py
+src/pip/_vendor/packaging/LICENSE
+src/pip/_vendor/packaging/LICENSE.APACHE
+src/pip/_vendor/packaging/LICENSE.BSD
+src/pip/_vendor/packaging/__about__.py
+src/pip/_vendor/packaging/__init__.py
+src/pip/_vendor/packaging/_compat.py
+src/pip/_vendor/packaging/_structures.py
+src/pip/_vendor/packaging/markers.py
+src/pip/_vendor/packaging/requirements.py
+src/pip/_vendor/packaging/specifiers.py
+src/pip/_vendor/packaging/utils.py
+src/pip/_vendor/packaging/version.py
+src/pip/_vendor/pep517/LICENSE
+src/pip/_vendor/pep517/__init__.py
+src/pip/_vendor/pep517/_in_process.py
+src/pip/_vendor/pep517/build.py
+src/pip/_vendor/pep517/check.py
+src/pip/_vendor/pep517/colorlog.py
+src/pip/_vendor/pep517/compat.py
+src/pip/_vendor/pep517/envbuild.py
+src/pip/_vendor/pep517/wrappers.py
+src/pip/_vendor/pkg_resources/LICENSE
+src/pip/_vendor/pkg_resources/__init__.py
+src/pip/_vendor/pkg_resources/py31compat.py
+src/pip/_vendor/progress/LICENSE
+src/pip/_vendor/progress/__init__.py
+src/pip/_vendor/progress/bar.py
+src/pip/_vendor/progress/counter.py
+src/pip/_vendor/progress/helpers.py
+src/pip/_vendor/progress/spinner.py
+src/pip/_vendor/pytoml/LICENSE
+src/pip/_vendor/pytoml/__init__.py
+src/pip/_vendor/pytoml/core.py
+src/pip/_vendor/pytoml/parser.py
+src/pip/_vendor/pytoml/test.py
+src/pip/_vendor/pytoml/utils.py
+src/pip/_vendor/pytoml/writer.py
+src/pip/_vendor/requests/LICENSE
+src/pip/_vendor/requests/__init__.py
+src/pip/_vendor/requests/__version__.py
+src/pip/_vendor/requests/_internal_utils.py
+src/pip/_vendor/requests/adapters.py
+src/pip/_vendor/requests/api.py
+src/pip/_vendor/requests/auth.py
+src/pip/_vendor/requests/certs.py
+src/pip/_vendor/requests/compat.py
+src/pip/_vendor/requests/cookies.py
+src/pip/_vendor/requests/exceptions.py
+src/pip/_vendor/requests/help.py
+src/pip/_vendor/requests/hooks.py
+src/pip/_vendor/requests/models.py
+src/pip/_vendor/requests/packages.py
+src/pip/_vendor/requests/sessions.py
+src/pip/_vendor/requests/status_codes.py
+src/pip/_vendor/requests/structures.py
+src/pip/_vendor/requests/utils.py
+src/pip/_vendor/urllib3/LICENSE.txt
+src/pip/_vendor/urllib3/__init__.py
+src/pip/_vendor/urllib3/_collections.py
+src/pip/_vendor/urllib3/connection.py
+src/pip/_vendor/urllib3/connectionpool.py
+src/pip/_vendor/urllib3/exceptions.py
+src/pip/_vendor/urllib3/fields.py
+src/pip/_vendor/urllib3/filepost.py
+src/pip/_vendor/urllib3/poolmanager.py
+src/pip/_vendor/urllib3/request.py
+src/pip/_vendor/urllib3/response.py
+src/pip/_vendor/urllib3/contrib/__init__.py
+src/pip/_vendor/urllib3/contrib/_appengine_environ.py
+src/pip/_vendor/urllib3/contrib/appengine.py
+src/pip/_vendor/urllib3/contrib/ntlmpool.py
+src/pip/_vendor/urllib3/contrib/pyopenssl.py
+src/pip/_vendor/urllib3/contrib/securetransport.py
+src/pip/_vendor/urllib3/contrib/socks.py
+src/pip/_vendor/urllib3/contrib/_securetransport/__init__.py
+src/pip/_vendor/urllib3/contrib/_securetransport/bindings.py
+src/pip/_vendor/urllib3/contrib/_securetransport/low_level.py
+src/pip/_vendor/urllib3/packages/__init__.py
+src/pip/_vendor/urllib3/packages/six.py
+src/pip/_vendor/urllib3/packages/backports/__init__.py
+src/pip/_vendor/urllib3/packages/backports/makefile.py
+src/pip/_vendor/urllib3/packages/ssl_match_hostname/__init__.py
+src/pip/_vendor/urllib3/packages/ssl_match_hostname/_implementation.py
+src/pip/_vendor/urllib3/util/__init__.py
+src/pip/_vendor/urllib3/util/connection.py
+src/pip/_vendor/urllib3/util/queue.py
+src/pip/_vendor/urllib3/util/request.py
+src/pip/_vendor/urllib3/util/response.py
+src/pip/_vendor/urllib3/util/retry.py
+src/pip/_vendor/urllib3/util/ssl_.py
+src/pip/_vendor/urllib3/util/timeout.py
+src/pip/_vendor/urllib3/util/url.py
+src/pip/_vendor/urllib3/util/wait.py
+src/pip/_vendor/webencodings/LICENSE
+src/pip/_vendor/webencodings/__init__.py
+src/pip/_vendor/webencodings/labels.py
+src/pip/_vendor/webencodings/mklabels.py
+src/pip/_vendor/webencodings/tests.py
+src/pip/_vendor/webencodings/x_user_defined.py

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/EGG-INFO/dependency_links.txt

@@ -0,0 +1 @@
+

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/EGG-INFO/entry_points.txt

@@ -0,0 +1,5 @@
+[console_scripts]
+pip = pip._internal:main
+pip3 = pip._internal:main
+pip3.7 = pip._internal:main
+

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/EGG-INFO/not-zip-safe

@@ -0,0 +1 @@
+

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/EGG-INFO/top_level.txt

@@ -0,0 +1 @@
+pip

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/__init__.py

@@ -0,0 +1 @@
+__version__ = "19.0.3"

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/__main__.py

@@ -0,0 +1,19 @@
+from __future__ import absolute_import
+
+import os
+import sys
+
+# If we are running from a wheel, add the wheel to sys.path
+# This allows the usage python pip-*.whl/pip install pip-*.whl
+if __package__ == '':
+    # __file__ is pip-*.whl/pip/__main__.py
+    # first dirname call strips of '/__main__.py', second strips off '/pip'
+    # Resulting path is the name of the wheel itself
+    # Add that to sys.path so we can import pip
+    path = os.path.dirname(os.path.dirname(__file__))
+    sys.path.insert(0, path)
+
+from pip._internal import main as _main  # isort:skip # noqa
+
+if __name__ == '__main__':
+    sys.exit(_main())

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/__init__.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python
+from __future__ import absolute_import
+
+import locale
+import logging
+import os
+import warnings
+
+import sys
+
+# 2016-06-17 barry@debian.org: urllib3 1.14 added optional support for socks,
+# but if invoked (i.e. imported), it will issue a warning to stderr if socks
+# isn't available.  requests unconditionally imports urllib3's socks contrib
+# module, triggering this warning.  The warning breaks DEP-8 tests (because of
+# the stderr output) and is just plain annoying in normal usage.  I don't want
+# to add socks as yet another dependency for pip, nor do I want to allow-stder
+# in the DEP-8 tests, so just suppress the warning.  pdb tells me this has to
+# be done before the import of pip.vcs.
+from pip._vendor.urllib3.exceptions import DependencyWarning
+warnings.filterwarnings("ignore", category=DependencyWarning)  # noqa
+
+# We want to inject the use of SecureTransport as early as possible so that any
+# references or sessions or what have you are ensured to have it, however we
+# only want to do this in the case that we're running on macOS and the linked
+# OpenSSL is too old to handle TLSv1.2
+try:
+    import ssl
+except ImportError:
+    pass
+else:
+    # Checks for OpenSSL 1.0.1 on MacOS
+    if sys.platform == "darwin" and ssl.OPENSSL_VERSION_NUMBER < 0x1000100f:
+        try:
+            from pip._vendor.urllib3.contrib import securetransport
+        except (ImportError, OSError):
+            pass
+        else:
+            securetransport.inject_into_urllib3()
+
+from pip._internal.cli.autocompletion import autocomplete
+from pip._internal.cli.main_parser import parse_command
+from pip._internal.commands import commands_dict
+from pip._internal.exceptions import PipError
+from pip._internal.utils import deprecation
+from pip._internal.vcs import git, mercurial, subversion, bazaar  # noqa
+from pip._vendor.urllib3.exceptions import InsecureRequestWarning
+
+logger = logging.getLogger(__name__)
+
+# Hide the InsecureRequestWarning from urllib3
+warnings.filterwarnings("ignore", category=InsecureRequestWarning)
+
+
+def main(args=None):
+    if args is None:
+        args = sys.argv[1:]
+
+    # Configure our deprecation warnings to be sent through loggers
+    deprecation.install_warning_logger()
+
+    autocomplete()
+
+    try:
+        cmd_name, cmd_args = parse_command(args)
+    except PipError as exc:
+        sys.stderr.write("ERROR: %s" % exc)
+        sys.stderr.write(os.linesep)
+        sys.exit(1)
+
+    # Needed for locale.getpreferredencoding(False) to work
+    # in pip._internal.utils.encoding.auto_decode
+    try:
+        locale.setlocale(locale.LC_ALL, '')
+    except locale.Error as e:
+        # setlocale can apparently crash if locale are uninitialized
+        logger.debug("Ignoring error %s when setting locale", e)
+    command = commands_dict[cmd_name](isolated=("--isolated" in cmd_args))
+    return command.main(cmd_args)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/build_env.py

@@ -0,0 +1,215 @@
+"""Build Environment used for isolation during sdist building
+"""
+
+import logging
+import os
+import sys
+import textwrap
+from collections import OrderedDict
+from distutils.sysconfig import get_python_lib
+from sysconfig import get_paths
+
+from pip._vendor.pkg_resources import Requirement, VersionConflict, WorkingSet
+
+from pip import __file__ as pip_location
+from pip._internal.utils.misc import call_subprocess
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+from pip._internal.utils.ui import open_spinner
+
+if MYPY_CHECK_RUNNING:
+    from typing import Tuple, Set, Iterable, Optional, List  # noqa: F401
+    from pip._internal.index import PackageFinder  # noqa: F401
+
+logger = logging.getLogger(__name__)
+
+
+class _Prefix:
+
+    def __init__(self, path):
+        # type: (str) -> None
+        self.path = path
+        self.setup = False
+        self.bin_dir = get_paths(
+            'nt' if os.name == 'nt' else 'posix_prefix',
+            vars={'base': path, 'platbase': path}
+        )['scripts']
+        # Note: prefer distutils' sysconfig to get the
+        # library paths so PyPy is correctly supported.
+        purelib = get_python_lib(plat_specific=False, prefix=path)
+        platlib = get_python_lib(plat_specific=True, prefix=path)
+        if purelib == platlib:
+            self.lib_dirs = [purelib]
+        else:
+            self.lib_dirs = [purelib, platlib]
+
+
+class BuildEnvironment(object):
+    """Creates and manages an isolated environment to install build deps
+    """
+
+    def __init__(self):
+        # type: () -> None
+        self._temp_dir = TempDirectory(kind="build-env")
+        self._temp_dir.create()
+
+        self._prefixes = OrderedDict((
+            (name, _Prefix(os.path.join(self._temp_dir.path, name)))
+            for name in ('normal', 'overlay')
+        ))
+
+        self._bin_dirs = []  # type: List[str]
+        self._lib_dirs = []  # type: List[str]
+        for prefix in reversed(list(self._prefixes.values())):
+            self._bin_dirs.append(prefix.bin_dir)
+            self._lib_dirs.extend(prefix.lib_dirs)
+
+        # Customize site to:
+        # - ensure .pth files are honored
+        # - prevent access to system site packages
+        system_sites = {
+            os.path.normcase(site) for site in (
+                get_python_lib(plat_specific=False),
+                get_python_lib(plat_specific=True),
+            )
+        }
+        self._site_dir = os.path.join(self._temp_dir.path, 'site')
+        if not os.path.exists(self._site_dir):
+            os.mkdir(self._site_dir)
+        with open(os.path.join(self._site_dir, 'sitecustomize.py'), 'w') as fp:
+            fp.write(textwrap.dedent(
+                '''
+                import os, site, sys
+
+                # First, drop system-sites related paths.
+                original_sys_path = sys.path[:]
+                known_paths = set()
+                for path in {system_sites!r}:
+                    site.addsitedir(path, known_paths=known_paths)
+                system_paths = set(
+                    os.path.normcase(path)
+                    for path in sys.path[len(original_sys_path):]
+                )
+                original_sys_path = [
+                    path for path in original_sys_path
+                    if os.path.normcase(path) not in system_paths
+                ]
+                sys.path = original_sys_path
+
+                # Second, add lib directories.
+                # ensuring .pth file are processed.
+                for path in {lib_dirs!r}:
+                    assert not path in sys.path
+                    site.addsitedir(path)
+                '''
+            ).format(system_sites=system_sites, lib_dirs=self._lib_dirs))
+
+    def __enter__(self):
+        self._save_env = {
+            name: os.environ.get(name, None)
+            for name in ('PATH', 'PYTHONNOUSERSITE', 'PYTHONPATH')
+        }
+
+        path = self._bin_dirs[:]
+        old_path = self._save_env['PATH']
+        if old_path:
+            path.extend(old_path.split(os.pathsep))
+
+        pythonpath = [self._site_dir]
+
+        os.environ.update({
+            'PATH': os.pathsep.join(path),
+            'PYTHONNOUSERSITE': '1',
+            'PYTHONPATH': os.pathsep.join(pythonpath),
+        })
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        for varname, old_value in self._save_env.items():
+            if old_value is None:
+                os.environ.pop(varname, None)
+            else:
+                os.environ[varname] = old_value
+
+    def cleanup(self):
+        # type: () -> None
+        self._temp_dir.cleanup()
+
+    def check_requirements(self, reqs):
+        # type: (Iterable[str]) -> Tuple[Set[Tuple[str, str]], Set[str]]
+        """Return 2 sets:
+            - conflicting requirements: set of (installed, wanted) reqs tuples
+            - missing requirements: set of reqs
+        """
+        missing = set()
+        conflicting = set()
+        if reqs:
+            ws = WorkingSet(self._lib_dirs)
+            for req in reqs:
+                try:
+                    if ws.find(Requirement.parse(req)) is None:
+                        missing.add(req)
+                except VersionConflict as e:
+                    conflicting.add((str(e.args[0].as_requirement()),
+                                     str(e.args[1])))
+        return conflicting, missing
+
+    def install_requirements(
+        self,
+        finder,  # type: PackageFinder
+        requirements,  # type: Iterable[str]
+        prefix_as_string,  # type: str
+        message  # type: Optional[str]
+    ):
+        # type: (...) -> None
+        prefix = self._prefixes[prefix_as_string]
+        assert not prefix.setup
+        prefix.setup = True
+        if not requirements:
+            return
+        args = [
+            sys.executable, os.path.dirname(pip_location), 'install',
+            '--ignore-installed', '--no-user', '--prefix', prefix.path,
+            '--no-warn-script-location',
+        ]  # type: List[str]
+        if logger.getEffectiveLevel() <= logging.DEBUG:
+            args.append('-v')
+        for format_control in ('no_binary', 'only_binary'):
+            formats = getattr(finder.format_control, format_control)
+            args.extend(('--' + format_control.replace('_', '-'),
+                         ','.join(sorted(formats or {':none:'}))))
+        if finder.index_urls:
+            args.extend(['-i', finder.index_urls[0]])
+            for extra_index in finder.index_urls[1:]:
+                args.extend(['--extra-index-url', extra_index])
+        else:
+            args.append('--no-index')
+        for link in finder.find_links:
+            args.extend(['--find-links', link])
+        for _, host, _ in finder.secure_origins:
+            args.extend(['--trusted-host', host])
+        if finder.allow_all_prereleases:
+            args.append('--pre')
+        args.append('--')
+        args.extend(requirements)
+        with open_spinner(message) as spinner:
+            call_subprocess(args, show_stdout=False, spinner=spinner)
+
+
+class NoOpBuildEnvironment(BuildEnvironment):
+    """A no-op drop-in replacement for BuildEnvironment
+    """
+
+    def __init__(self):
+        pass
+
+    def __enter__(self):
+        pass
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        pass
+
+    def cleanup(self):
+        pass
+
+    def install_requirements(self, finder, requirements, prefix, message):
+        raise NotImplementedError()

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cache.py

@@ -0,0 +1,224 @@
+"""Cache Management
+"""
+
+import errno
+import hashlib
+import logging
+import os
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.download import path_to_url
+from pip._internal.models.link import Link
+from pip._internal.utils.compat import expanduser
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+from pip._internal.wheel import InvalidWheelFilename, Wheel
+
+if MYPY_CHECK_RUNNING:
+    from typing import Optional, Set, List, Any  # noqa: F401
+    from pip._internal.index import FormatControl  # noqa: F401
+
+logger = logging.getLogger(__name__)
+
+
+class Cache(object):
+    """An abstract class - provides cache directories for data from links
+
+
+        :param cache_dir: The root of the cache.
+        :param format_control: An object of FormatControl class to limit
+            binaries being read from the cache.
+        :param allowed_formats: which formats of files the cache should store.
+            ('binary' and 'source' are the only allowed values)
+    """
+
+    def __init__(self, cache_dir, format_control, allowed_formats):
+        # type: (str, FormatControl, Set[str]) -> None
+        super(Cache, self).__init__()
+        self.cache_dir = expanduser(cache_dir) if cache_dir else None
+        self.format_control = format_control
+        self.allowed_formats = allowed_formats
+
+        _valid_formats = {"source", "binary"}
+        assert self.allowed_formats.union(_valid_formats) == _valid_formats
+
+    def _get_cache_path_parts(self, link):
+        # type: (Link) -> List[str]
+        """Get parts of part that must be os.path.joined with cache_dir
+        """
+
+        # We want to generate an url to use as our cache key, we don't want to
+        # just re-use the URL because it might have other items in the fragment
+        # and we don't care about those.
+        key_parts = [link.url_without_fragment]
+        if link.hash_name is not None and link.hash is not None:
+            key_parts.append("=".join([link.hash_name, link.hash]))
+        key_url = "#".join(key_parts)
+
+        # Encode our key url with sha224, we'll use this because it has similar
+        # security properties to sha256, but with a shorter total output (and
+        # thus less secure). However the differences don't make a lot of
+        # difference for our use case here.
+        hashed = hashlib.sha224(key_url.encode()).hexdigest()
+
+        # We want to nest the directories some to prevent having a ton of top
+        # level directories where we might run out of sub directories on some
+        # FS.
+        parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
+
+        return parts
+
+    def _get_candidates(self, link, package_name):
+        # type: (Link, Optional[str]) -> List[Any]
+        can_not_cache = (
+            not self.cache_dir or
+            not package_name or
+            not link
+        )
+        if can_not_cache:
+            return []
+
+        canonical_name = canonicalize_name(package_name)
+        formats = self.format_control.get_allowed_formats(
+            canonical_name
+        )
+        if not self.allowed_formats.intersection(formats):
+            return []
+
+        root = self.get_path_for_link(link)
+        try:
+            return os.listdir(root)
+        except OSError as err:
+            if err.errno in {errno.ENOENT, errno.ENOTDIR}:
+                return []
+            raise
+
+    def get_path_for_link(self, link):
+        # type: (Link) -> str
+        """Return a directory to store cached items in for link.
+        """
+        raise NotImplementedError()
+
+    def get(self, link, package_name):
+        # type: (Link, Optional[str]) -> Link
+        """Returns a link to a cached item if it exists, otherwise returns the
+        passed link.
+        """
+        raise NotImplementedError()
+
+    def _link_for_candidate(self, link, candidate):
+        # type: (Link, str) -> Link
+        root = self.get_path_for_link(link)
+        path = os.path.join(root, candidate)
+
+        return Link(path_to_url(path))
+
+    def cleanup(self):
+        # type: () -> None
+        pass
+
+
+class SimpleWheelCache(Cache):
+    """A cache of wheels for future installs.
+    """
+
+    def __init__(self, cache_dir, format_control):
+        # type: (str, FormatControl) -> None
+        super(SimpleWheelCache, self).__init__(
+            cache_dir, format_control, {"binary"}
+        )
+
+    def get_path_for_link(self, link):
+        # type: (Link) -> str
+        """Return a directory to store cached wheels for link
+
+        Because there are M wheels for any one sdist, we provide a directory
+        to cache them in, and then consult that directory when looking up
+        cache hits.
+
+        We only insert things into the cache if they have plausible version
+        numbers, so that we don't contaminate the cache with things that were
+        not unique. E.g. ./package might have dozens of installs done for it
+        and build a version of 0.0...and if we built and cached a wheel, we'd
+        end up using the same wheel even if the source has been edited.
+
+        :param link: The link of the sdist for which this will cache wheels.
+        """
+        parts = self._get_cache_path_parts(link)
+
+        # Store wheels within the root cache_dir
+        return os.path.join(self.cache_dir, "wheels", *parts)
+
+    def get(self, link, package_name):
+        # type: (Link, Optional[str]) -> Link
+        candidates = []
+
+        for wheel_name in self._get_candidates(link, package_name):
+            try:
+                wheel = Wheel(wheel_name)
+            except InvalidWheelFilename:
+                continue
+            if not wheel.supported():
+                # Built for a different python/arch/etc
+                continue
+            candidates.append((wheel.support_index_min(), wheel_name))
+
+        if not candidates:
+            return link
+
+        return self._link_for_candidate(link, min(candidates)[1])
+
+
+class EphemWheelCache(SimpleWheelCache):
+    """A SimpleWheelCache that creates it's own temporary cache directory
+    """
+
+    def __init__(self, format_control):
+        # type: (FormatControl) -> None
+        self._temp_dir = TempDirectory(kind="ephem-wheel-cache")
+        self._temp_dir.create()
+
+        super(EphemWheelCache, self).__init__(
+            self._temp_dir.path, format_control
+        )
+
+    def cleanup(self):
+        # type: () -> None
+        self._temp_dir.cleanup()
+
+
+class WheelCache(Cache):
+    """Wraps EphemWheelCache and SimpleWheelCache into a single Cache
+
+    This Cache allows for gracefully degradation, using the ephem wheel cache
+    when a certain link is not found in the simple wheel cache first.
+    """
+
+    def __init__(self, cache_dir, format_control):
+        # type: (str, FormatControl) -> None
+        super(WheelCache, self).__init__(
+            cache_dir, format_control, {'binary'}
+        )
+        self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
+        self._ephem_cache = EphemWheelCache(format_control)
+
+    def get_path_for_link(self, link):
+        # type: (Link) -> str
+        return self._wheel_cache.get_path_for_link(link)
+
+    def get_ephem_path_for_link(self, link):
+        # type: (Link) -> str
+        return self._ephem_cache.get_path_for_link(link)
+
+    def get(self, link, package_name):
+        # type: (Link, Optional[str]) -> Link
+        retval = self._wheel_cache.get(link, package_name)
+        if retval is link:
+            retval = self._ephem_cache.get(link, package_name)
+        return retval
+
+    def cleanup(self):
+        # type: () -> None
+        self._wheel_cache.cleanup()
+        self._ephem_cache.cleanup()

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/__init__.py

@@ -0,0 +1,4 @@
+"""Subpackage containing all of pip's command line interface related code
+"""
+
+# This file intentionally does not import submodules

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/autocompletion.py

@@ -0,0 +1,152 @@
+"""Logic that powers autocompletion installed by ``pip completion``.
+"""
+
+import optparse
+import os
+import sys
+
+from pip._internal.cli.main_parser import create_main_parser
+from pip._internal.commands import commands_dict, get_summaries
+from pip._internal.utils.misc import get_installed_distributions
+
+
+def autocomplete():
+    """Entry Point for completion of main and subcommand options.
+    """
+    # Don't complete if user hasn't sourced bash_completion file.
+    if 'PIP_AUTO_COMPLETE' not in os.environ:
+        return
+    cwords = os.environ['COMP_WORDS'].split()[1:]
+    cword = int(os.environ['COMP_CWORD'])
+    try:
+        current = cwords[cword - 1]
+    except IndexError:
+        current = ''
+
+    subcommands = [cmd for cmd, summary in get_summaries()]
+    options = []
+    # subcommand
+    try:
+        subcommand_name = [w for w in cwords if w in subcommands][0]
+    except IndexError:
+        subcommand_name = None
+
+    parser = create_main_parser()
+    # subcommand options
+    if subcommand_name:
+        # special case: 'help' subcommand has no options
+        if subcommand_name == 'help':
+            sys.exit(1)
+        # special case: list locally installed dists for show and uninstall
+        should_list_installed = (
+            subcommand_name in ['show', 'uninstall'] and
+            not current.startswith('-')
+        )
+        if should_list_installed:
+            installed = []
+            lc = current.lower()
+            for dist in get_installed_distributions(local_only=True):
+                if dist.key.startswith(lc) and dist.key not in cwords[1:]:
+                    installed.append(dist.key)
+            # if there are no dists installed, fall back to option completion
+            if installed:
+                for dist in installed:
+                    print(dist)
+                sys.exit(1)
+
+        subcommand = commands_dict[subcommand_name]()
+
+        for opt in subcommand.parser.option_list_all:
+            if opt.help != optparse.SUPPRESS_HELP:
+                for opt_str in opt._long_opts + opt._short_opts:
+                    options.append((opt_str, opt.nargs))
+
+        # filter out previously specified options from available options
+        prev_opts = [x.split('=')[0] for x in cwords[1:cword - 1]]
+        options = [(x, v) for (x, v) in options if x not in prev_opts]
+        # filter options by current input
+        options = [(k, v) for k, v in options if k.startswith(current)]
+        # get completion type given cwords and available subcommand options
+        completion_type = get_path_completion_type(
+            cwords, cword, subcommand.parser.option_list_all,
+        )
+        # get completion files and directories if ``completion_type`` is
+        # ``<file>``, ``<dir>`` or ``<path>``
+        if completion_type:
+            options = auto_complete_paths(current, completion_type)
+            options = ((opt, 0) for opt in options)
+        for option in options:
+            opt_label = option[0]
+            # append '=' to options which require args
+            if option[1] and option[0][:2] == "--":
+                opt_label += '='
+            print(opt_label)
+    else:
+        # show main parser options only when necessary
+
+        opts = [i.option_list for i in parser.option_groups]
+        opts.append(parser.option_list)
+        opts = (o for it in opts for o in it)
+        if current.startswith('-'):
+            for opt in opts:
+                if opt.help != optparse.SUPPRESS_HELP:
+                    subcommands += opt._long_opts + opt._short_opts
+        else:
+            # get completion type given cwords and all available options
+            completion_type = get_path_completion_type(cwords, cword, opts)
+            if completion_type:
+                subcommands = auto_complete_paths(current, completion_type)
+
+        print(' '.join([x for x in subcommands if x.startswith(current)]))
+    sys.exit(1)
+
+
+def get_path_completion_type(cwords, cword, opts):
+    """Get the type of path completion (``file``, ``dir``, ``path`` or None)
+
+    :param cwords: same as the environmental variable ``COMP_WORDS``
+    :param cword: same as the environmental variable ``COMP_CWORD``
+    :param opts: The available options to check
+    :return: path completion type (``file``, ``dir``, ``path`` or None)
+    """
+    if cword < 2 or not cwords[cword - 2].startswith('-'):
+        return
+    for opt in opts:
+        if opt.help == optparse.SUPPRESS_HELP:
+            continue
+        for o in str(opt).split('/'):
+            if cwords[cword - 2].split('=')[0] == o:
+                if not opt.metavar or any(
+                        x in ('path', 'file', 'dir')
+                        for x in opt.metavar.split('/')):
+                    return opt.metavar
+
+
+def auto_complete_paths(current, completion_type):
+    """If ``completion_type`` is ``file`` or ``path``, list all regular files
+    and directories starting with ``current``; otherwise only list directories
+    starting with ``current``.
+
+    :param current: The word to be completed
+    :param completion_type: path completion type(`file`, `path` or `dir`)i
+    :return: A generator of regular files and/or directories
+    """
+    directory, filename = os.path.split(current)
+    current_path = os.path.abspath(directory)
+    # Don't complete paths if they can't be accessed
+    if not os.access(current_path, os.R_OK):
+        return
+    filename = os.path.normcase(filename)
+    # list all files that start with ``filename``
+    file_list = (x for x in os.listdir(current_path)
+                 if os.path.normcase(x).startswith(filename))
+    for f in file_list:
+        opt = os.path.join(current_path, f)
+        comp_file = os.path.normcase(os.path.join(directory, f))
+        # complete regular files when there is not ``<dir>`` after option
+        # complete directories when there is ``<file>``, ``<path>`` or
+        # ``<dir>``after option
+        if completion_type != 'dir' and os.path.isfile(opt):
+            yield comp_file
+        elif os.path.isdir(opt):
+            yield os.path.join(comp_file, '')

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/base_command.py

@@ -0,0 +1,341 @@
+"""Base Command class, and related routines"""
+from __future__ import absolute_import, print_function
+
+import logging
+import logging.config
+import optparse
+import os
+import platform
+import sys
+import traceback
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.parser import (
+    ConfigOptionParser, UpdatingDefaultsHelpFormatter,
+)
+from pip._internal.cli.status_codes import (
+    ERROR, PREVIOUS_BUILD_DIR_ERROR, SUCCESS, UNKNOWN_ERROR,
+    VIRTUALENV_NOT_FOUND,
+)
+from pip._internal.download import PipSession
+from pip._internal.exceptions import (
+    BadCommand, CommandError, InstallationError, PreviousBuildDirError,
+    UninstallationError,
+)
+from pip._internal.index import PackageFinder
+from pip._internal.locations import running_under_virtualenv
+from pip._internal.req.constructors import (
+    install_req_from_editable, install_req_from_line,
+)
+from pip._internal.req.req_file import parse_requirements
+from pip._internal.utils.deprecation import deprecated
+from pip._internal.utils.logging import BrokenStdoutLoggingError, setup_logging
+from pip._internal.utils.misc import (
+    get_prog, normalize_path, redact_password_from_url,
+)
+from pip._internal.utils.outdated import pip_version_check
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Optional, List, Tuple, Any  # noqa: F401
+    from optparse import Values  # noqa: F401
+    from pip._internal.cache import WheelCache  # noqa: F401
+    from pip._internal.req.req_set import RequirementSet  # noqa: F401
+
+__all__ = ['Command']
+
+logger = logging.getLogger(__name__)
+
+
+class Command(object):
+    name = None  # type: Optional[str]
+    usage = None  # type: Optional[str]
+    hidden = False  # type: bool
+    ignore_require_venv = False  # type: bool
+
+    def __init__(self, isolated=False):
+        # type: (bool) -> None
+        parser_kw = {
+            'usage': self.usage,
+            'prog': '%s %s' % (get_prog(), self.name),
+            'formatter': UpdatingDefaultsHelpFormatter(),
+            'add_help_option': False,
+            'name': self.name,
+            'description': self.__doc__,
+            'isolated': isolated,
+        }
+
+        self.parser = ConfigOptionParser(**parser_kw)
+
+        # Commands should add options to this option group
+        optgroup_name = '%s Options' % self.name.capitalize()
+        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
+
+        # Add the general options
+        gen_opts = cmdoptions.make_option_group(
+            cmdoptions.general_group,
+            self.parser,
+        )
+        self.parser.add_option_group(gen_opts)
+
+    def run(self, options, args):
+        # type: (Values, List[Any]) -> Any
+        raise NotImplementedError
+
+    def _build_session(self, options, retries=None, timeout=None):
+        # type: (Values, Optional[int], Optional[int]) -> PipSession
+        session = PipSession(
+            cache=(
+                normalize_path(os.path.join(options.cache_dir, "http"))
+                if options.cache_dir else None
+            ),
+            retries=retries if retries is not None else options.retries,
+            insecure_hosts=options.trusted_hosts,
+        )
+
+        # Handle custom ca-bundles from the user
+        if options.cert:
+            session.verify = options.cert
+
+        # Handle SSL client certificate
+        if options.client_cert:
+            session.cert = options.client_cert
+
+        # Handle timeouts
+        if options.timeout or timeout:
+            session.timeout = (
+                timeout if timeout is not None else options.timeout
+            )
+
+        # Handle configured proxies
+        if options.proxy:
+            session.proxies = {
+                "http": options.proxy,
+                "https": options.proxy,
+            }
+
+        # Determine if we can prompt the user for authentication or not
+        session.auth.prompting = not options.no_input
+
+        return session
+
+    def parse_args(self, args):
+        # type: (List[str]) -> Tuple
+        # factored out for testability
+        return self.parser.parse_args(args)
+
+    def main(self, args):
+        # type: (List[str]) -> int
+        options, args = self.parse_args(args)
+
+        # Set verbosity so that it can be used elsewhere.
+        self.verbosity = options.verbose - options.quiet
+
+        level_number = setup_logging(
+            verbosity=self.verbosity,
+            no_color=options.no_color,
+            user_log_file=options.log,
+        )
+
+        if sys.version_info[:2] == (3, 4):
+            deprecated(
+                "Python 3.4 support has been deprecated. pip 19.1 will be the "
+                "last one supporting it. Please upgrade your Python as Python "
+                "3.4 won't be maintained after March 2019 (cf PEP 429).",
+                replacement=None,
+                gone_in='19.2',
+            )
+        elif sys.version_info[:2] == (2, 7):
+            message = (
+                "A future version of pip will drop support for Python 2.7."
+            )
+            if platform.python_implementation() == "CPython":
+                message = (
+                    "Python 2.7 will reach the end of its life on January "
+                    "1st, 2020. Please upgrade your Python as Python 2.7 "
+                    "won't be maintained after that date. "
+                ) + message
+            deprecated(message, replacement=None, gone_in=None)
+
+        # TODO: Try to get these passing down from the command?
+        #       without resorting to os.environ to hold these.
+        #       This also affects isolated builds and it should.
+
+        if options.no_input:
+            os.environ['PIP_NO_INPUT'] = '1'
+
+        if options.exists_action:
+            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)
+
+        if options.require_venv and not self.ignore_require_venv:
+            # If a venv is required check if it can really be found
+            if not running_under_virtualenv():
+                logger.critical(
+                    'Could not find an activated virtualenv (required).'
+                )
+                sys.exit(VIRTUALENV_NOT_FOUND)
+
+        try:
+            status = self.run(options, args)
+            # FIXME: all commands should return an exit status
+            # and when it is done, isinstance is not needed anymore
+            if isinstance(status, int):
+                return status
+        except PreviousBuildDirError as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return PREVIOUS_BUILD_DIR_ERROR
+        except (InstallationError, UninstallationError, BadCommand) as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except CommandError as exc:
+            logger.critical('ERROR: %s', exc)
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except BrokenStdoutLoggingError:
+            # Bypass our logger and write any remaining messages to stderr
+            # because stdout no longer works.
+            print('ERROR: Pipe to stdout was broken', file=sys.stderr)
+            if level_number <= logging.DEBUG:
+                traceback.print_exc(file=sys.stderr)
+
+            return ERROR
+        except KeyboardInterrupt:
+            logger.critical('Operation cancelled by user')
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except BaseException:
+            logger.critical('Exception:', exc_info=True)
+
+            return UNKNOWN_ERROR
+        finally:
+            allow_version_check = (
+                # Does this command have the index_group options?
+                hasattr(options, "no_index") and
+                # Is this command allowed to perform this check?
+                not (options.disable_pip_version_check or options.no_index)
+            )
+            # Check if we're using the latest version of pip available
+            if allow_version_check:
+                session = self._build_session(
+                    options,
+                    retries=0,
+                    timeout=min(5, options.timeout)
+                )
+                with session:
+                    pip_version_check(session, options)
+
+            # Shutdown the logging module
+            logging.shutdown()
+
+        return SUCCESS
+
+
+class RequirementCommand(Command):
+
+    @staticmethod
+    def populate_requirement_set(requirement_set,  # type: RequirementSet
+                                 args,             # type: List[str]
+                                 options,          # type: Values
+                                 finder,           # type: PackageFinder
+                                 session,          # type: PipSession
+                                 name,             # type: str
+                                 wheel_cache       # type: Optional[WheelCache]
+                                 ):
+        # type: (...) -> None
+        """
+        Marshal cmd line args into a requirement set.
+        """
+        # NOTE: As a side-effect, options.require_hashes and
+        #       requirement_set.require_hashes may be updated
+
+        for filename in options.constraints:
+            for req_to_add in parse_requirements(
+                    filename,
+                    constraint=True, finder=finder, options=options,
+                    session=session, wheel_cache=wheel_cache):
+                req_to_add.is_direct = True
+                requirement_set.add_requirement(req_to_add)
+
+        for req in args:
+            req_to_add = install_req_from_line(
+                req, None, isolated=options.isolated_mode,
+                use_pep517=options.use_pep517,
+                wheel_cache=wheel_cache
+            )
+            req_to_add.is_direct = True
+            requirement_set.add_requirement(req_to_add)
+
+        for req in options.editables:
+            req_to_add = install_req_from_editable(
+                req,
+                isolated=options.isolated_mode,
+                use_pep517=options.use_pep517,
+                wheel_cache=wheel_cache
+            )
+            req_to_add.is_direct = True
+            requirement_set.add_requirement(req_to_add)
+
+        for filename in options.requirements:
+            for req_to_add in parse_requirements(
+                    filename,
+                    finder=finder, options=options, session=session,
+                    wheel_cache=wheel_cache,
+                    use_pep517=options.use_pep517):
+                req_to_add.is_direct = True
+                requirement_set.add_requirement(req_to_add)
+        # If --require-hashes was a line in a requirements file, tell
+        # RequirementSet about it:
+        requirement_set.require_hashes = options.require_hashes
+
+        if not (args or options.editables or options.requirements):
+            opts = {'name': name}
+            if options.find_links:
+                raise CommandError(
+                    'You must give at least one requirement to %(name)s '
+                    '(maybe you meant "pip %(name)s %(links)s"?)' %
+                    dict(opts, links=' '.join(options.find_links)))
+            else:
+                raise CommandError(
+                    'You must give at least one requirement to %(name)s '
+                    '(see "pip help %(name)s")' % opts)
+
+    def _build_package_finder(
+        self,
+        options,               # type: Values
+        session,               # type: PipSession
+        platform=None,         # type: Optional[str]
+        python_versions=None,  # type: Optional[List[str]]
+        abi=None,              # type: Optional[str]
+        implementation=None    # type: Optional[str]
+    ):
+        # type: (...) -> PackageFinder
+        """
+        Create a package finder appropriate to this requirement command.
+        """
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug(
+                'Ignoring indexes: %s',
+                ','.join(redact_password_from_url(url) for url in index_urls),
+            )
+            index_urls = []
+
+        return PackageFinder(
+            find_links=options.find_links,
+            format_control=options.format_control,
+            index_urls=index_urls,
+            trusted_hosts=options.trusted_hosts,
+            allow_all_prereleases=options.pre,
+            session=session,
+            platform=platform,
+            versions=python_versions,
+            abi=abi,
+            implementation=implementation,
+            prefer_binary=options.prefer_binary,
+        )

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/cmdoptions.py

@@ -0,0 +1,809 @@
+"""
+shared options and groups
+
+The principle here is to define options once, but *not* instantiate them
+globally. One reason being that options with action='append' can carry state
+between parses. pip parses general options twice internally, and shouldn't
+pass on state. To be consistent, all options will follow this design.
+
+"""
+from __future__ import absolute_import
+
+import textwrap
+import warnings
+from distutils.util import strtobool
+from functools import partial
+from optparse import SUPPRESS_HELP, Option, OptionGroup
+
+from pip._internal.exceptions import CommandError
+from pip._internal.locations import USER_CACHE_DIR, src_prefix
+from pip._internal.models.format_control import FormatControl
+from pip._internal.models.index import PyPI
+from pip._internal.utils.hashes import STRONG_HASHES
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+from pip._internal.utils.ui import BAR_TYPES
+
+if MYPY_CHECK_RUNNING:
+    from typing import Any, Callable, Dict, List, Optional, Union  # noqa: F401
+    from optparse import OptionParser, Values  # noqa: F401
+    from pip._internal.cli.parser import ConfigOptionParser  # noqa: F401
+
+
+def raise_option_error(parser, option, msg):
+    """
+    Raise an option parsing error using parser.error().
+
+    Args:
+      parser: an OptionParser instance.
+      option: an Option instance.
+      msg: the error text.
+    """
+    msg = '{} error: {}'.format(option, msg)
+    msg = textwrap.fill(' '.join(msg.split()))
+    parser.error(msg)
+
+
+def make_option_group(group, parser):
+    # type: (Dict[str, Any], ConfigOptionParser) -> OptionGroup
+    """
+    Return an OptionGroup object
+    group  -- assumed to be dict with 'name' and 'options' keys
+    parser -- an optparse Parser
+    """
+    option_group = OptionGroup(parser, group['name'])
+    for option in group['options']:
+        option_group.add_option(option())
+    return option_group
+
+
+def check_install_build_global(options, check_options=None):
+    # type: (Values, Optional[Values]) -> None
+    """Disable wheels if per-setup.py call options are set.
+
+    :param options: The OptionParser options to update.
+    :param check_options: The options to check, if not supplied defaults to
+        options.
+    """
+    if check_options is None:
+        check_options = options
+
+    def getname(n):
+        return getattr(check_options, n, None)
+    names = ["build_options", "global_options", "install_options"]
+    if any(map(getname, names)):
+        control = options.format_control
+        control.disallow_binaries()
+        warnings.warn(
+            'Disabling all use of wheels due to the use of --build-options '
+            '/ --global-options / --install-options.', stacklevel=2,
+        )
+
+
+def check_dist_restriction(options, check_target=False):
+    # type: (Values, bool) -> None
+    """Function for determining if custom platform options are allowed.
+
+    :param options: The OptionParser options.
+    :param check_target: Whether or not to check if --target is being used.
+    """
+    dist_restriction_set = any([
+        options.python_version,
+        options.platform,
+        options.abi,
+        options.implementation,
+    ])
+
+    binary_only = FormatControl(set(), {':all:'})
+    sdist_dependencies_allowed = (
+        options.format_control != binary_only and
+        not options.ignore_dependencies
+    )
+
+    # Installations or downloads using dist restrictions must not combine
+    # source distributions and dist-specific wheels, as they are not
+    # gauranteed to be locally compatible.
+    if dist_restriction_set and sdist_dependencies_allowed:
+        raise CommandError(
+            "When restricting platform and interpreter constraints using "
+            "--python-version, --platform, --abi, or --implementation, "
+            "either --no-deps must be set, or --only-binary=:all: must be "
+            "set and --no-binary must not be set (or must be set to "
+            ":none:)."
+        )
+
+    if check_target:
+        if dist_restriction_set and not options.target_dir:
+            raise CommandError(
+                "Can not use any platform or abi specific options unless "
+                "installing via '--target'"
+            )
+
+
+###########
+# options #
+###########
+
+help_ = partial(
+    Option,
+    '-h', '--help',
+    dest='help',
+    action='help',
+    help='Show help.',
+)  # type: Callable[..., Option]
+
+isolated_mode = partial(
+    Option,
+    "--isolated",
+    dest="isolated_mode",
+    action="store_true",
+    default=False,
+    help=(
+        "Run pip in an isolated mode, ignoring environment variables and user "
+        "configuration."
+    ),
+)  # type: Callable[..., Option]
+
+require_virtualenv = partial(
+    Option,
+    # Run only if inside a virtualenv, bail if not.
+    '--require-virtualenv', '--require-venv',
+    dest='require_venv',
+    action='store_true',
+    default=False,
+    help=SUPPRESS_HELP
+)  # type: Callable[..., Option]
+
+verbose = partial(
+    Option,
+    '-v', '--verbose',
+    dest='verbose',
+    action='count',
+    default=0,
+    help='Give more output. Option is additive, and can be used up to 3 times.'
+)  # type: Callable[..., Option]
+
+no_color = partial(
+    Option,
+    '--no-color',
+    dest='no_color',
+    action='store_true',
+    default=False,
+    help="Suppress colored output",
+)  # type: Callable[..., Option]
+
+version = partial(
+    Option,
+    '-V', '--version',
+    dest='version',
+    action='store_true',
+    help='Show version and exit.',
+)  # type: Callable[..., Option]
+
+quiet = partial(
+    Option,
+    '-q', '--quiet',
+    dest='quiet',
+    action='count',
+    default=0,
+    help=(
+        'Give less output. Option is additive, and can be used up to 3'
+        ' times (corresponding to WARNING, ERROR, and CRITICAL logging'
+        ' levels).'
+    ),
+)  # type: Callable[..., Option]
+
+progress_bar = partial(
+    Option,
+    '--progress-bar',
+    dest='progress_bar',
+    type='choice',
+    choices=list(BAR_TYPES.keys()),
+    default='on',
+    help=(
+        'Specify type of progress to be displayed [' +
+        '|'.join(BAR_TYPES.keys()) + '] (default: %default)'
+    ),
+)  # type: Callable[..., Option]
+
+log = partial(
+    Option,
+    "--log", "--log-file", "--local-log",
+    dest="log",
+    metavar="path",
+    help="Path to a verbose appending log."
+)  # type: Callable[..., Option]
+
+no_input = partial(
+    Option,
+    # Don't ask for input
+    '--no-input',
+    dest='no_input',
+    action='store_true',
+    default=False,
+    help=SUPPRESS_HELP
+)  # type: Callable[..., Option]
+
+proxy = partial(
+    Option,
+    '--proxy',
+    dest='proxy',
+    type='str',
+    default='',
+    help="Specify a proxy in the form [user:passwd@]proxy.server:port."
+)  # type: Callable[..., Option]
+
+retries = partial(
+    Option,
+    '--retries',
+    dest='retries',
+    type='int',
+    default=5,
+    help="Maximum number of retries each connection should attempt "
+         "(default %default times).",
+)  # type: Callable[..., Option]
+
+timeout = partial(
+    Option,
+    '--timeout', '--default-timeout',
+    metavar='sec',
+    dest='timeout',
+    type='float',
+    default=15,
+    help='Set the socket timeout (default %default seconds).',
+)  # type: Callable[..., Option]
+
+skip_requirements_regex = partial(
+    Option,
+    # A regex to be used to skip requirements
+    '--skip-requirements-regex',
+    dest='skip_requirements_regex',
+    type='str',
+    default='',
+    help=SUPPRESS_HELP,
+)  # type: Callable[..., Option]
+
+
+def exists_action():
+    # type: () -> Option
+    return Option(
+        # Option when path already exist
+        '--exists-action',
+        dest='exists_action',
+        type='choice',
+        choices=['s', 'i', 'w', 'b', 'a'],
+        default=[],
+        action='append',
+        metavar='action',
+        help="Default action when a path already exists: "
+             "(s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort).",
+    )
+
+
+cert = partial(
+    Option,
+    '--cert',
+    dest='cert',
+    type='str',
+    metavar='path',
+    help="Path to alternate CA bundle.",
+)  # type: Callable[..., Option]
+
+client_cert = partial(
+    Option,
+    '--client-cert',
+    dest='client_cert',
+    type='str',
+    default=None,
+    metavar='path',
+    help="Path to SSL client certificate, a single file containing the "
+         "private key and the certificate in PEM format.",
+)  # type: Callable[..., Option]
+
+index_url = partial(
+    Option,
+    '-i', '--index-url', '--pypi-url',
+    dest='index_url',
+    metavar='URL',
+    default=PyPI.simple_url,
+    help="Base URL of Python Package Index (default %default). "
+         "This should point to a repository compliant with PEP 503 "
+         "(the simple repository API) or a local directory laid out "
+         "in the same format.",
+)  # type: Callable[..., Option]
+
+
+def extra_index_url():
+    return Option(
+        '--extra-index-url',
+        dest='extra_index_urls',
+        metavar='URL',
+        action='append',
+        default=[],
+        help="Extra URLs of package indexes to use in addition to "
+             "--index-url. Should follow the same rules as "
+             "--index-url.",
+    )
+
+
+no_index = partial(
+    Option,
+    '--no-index',
+    dest='no_index',
+    action='store_true',
+    default=False,
+    help='Ignore package index (only looking at --find-links URLs instead).',
+)  # type: Callable[..., Option]
+
+
+def find_links():
+    # type: () -> Option
+    return Option(
+        '-f', '--find-links',
+        dest='find_links',
+        action='append',
+        default=[],
+        metavar='url',
+        help="If a url or path to an html file, then parse for links to "
+             "archives. If a local path or file:// url that's a directory, "
+             "then look for archives in the directory listing.",
+    )
+
+
+def trusted_host():
+    # type: () -> Option
+    return Option(
+        "--trusted-host",
+        dest="trusted_hosts",
+        action="append",
+        metavar="HOSTNAME",
+        default=[],
+        help="Mark this host as trusted, even though it does not have valid "
+             "or any HTTPS.",
+    )
+
+
+def constraints():
+    # type: () -> Option
+    return Option(
+        '-c', '--constraint',
+        dest='constraints',
+        action='append',
+        default=[],
+        metavar='file',
+        help='Constrain versions using the given constraints file. '
+        'This option can be used multiple times.'
+    )
+
+
+def requirements():
+    # type: () -> Option
+    return Option(
+        '-r', '--requirement',
+        dest='requirements',
+        action='append',
+        default=[],
+        metavar='file',
+        help='Install from the given requirements file. '
+        'This option can be used multiple times.'
+    )
+
+
+def editable():
+    # type: () -> Option
+    return Option(
+        '-e', '--editable',
+        dest='editables',
+        action='append',
+        default=[],
+        metavar='path/url',
+        help=('Install a project in editable mode (i.e. setuptools '
+              '"develop mode") from a local project path or a VCS url.'),
+    )
+
+
+src = partial(
+    Option,
+    '--src', '--source', '--source-dir', '--source-directory',
+    dest='src_dir',
+    metavar='dir',
+    default=src_prefix,
+    help='Directory to check out editable projects into. '
+    'The default in a virtualenv is "<venv path>/src". '
+    'The default for global installs is "<current dir>/src".'
+)  # type: Callable[..., Option]
+
+
+def _get_format_control(values, option):
+    # type: (Values, Option) -> Any
+    """Get a format_control object."""
+    return getattr(values, option.dest)
+
+
+def _handle_no_binary(option, opt_str, value, parser):
+    # type: (Option, str, str, OptionParser) -> None
+    existing = _get_format_control(parser.values, option)
+    FormatControl.handle_mutual_excludes(
+        value, existing.no_binary, existing.only_binary,
+    )
+
+
+def _handle_only_binary(option, opt_str, value, parser):
+    # type: (Option, str, str, OptionParser) -> None
+    existing = _get_format_control(parser.values, option)
+    FormatControl.handle_mutual_excludes(
+        value, existing.only_binary, existing.no_binary,
+    )
+
+
+def no_binary():
+    # type: () -> Option
+    format_control = FormatControl(set(), set())
+    return Option(
+        "--no-binary", dest="format_control", action="callback",
+        callback=_handle_no_binary, type="str",
+        default=format_control,
+        help="Do not use binary packages. Can be supplied multiple times, and "
+             "each time adds to the existing value. Accepts either :all: to "
+             "disable all binary packages, :none: to empty the set, or one or "
+             "more package names with commas between them. Note that some "
+             "packages are tricky to compile and may fail to install when "
+             "this option is used on them.",
+    )
+
+
+def only_binary():
+    # type: () -> Option
+    format_control = FormatControl(set(), set())
+    return Option(
+        "--only-binary", dest="format_control", action="callback",
+        callback=_handle_only_binary, type="str",
+        default=format_control,
+        help="Do not use source packages. Can be supplied multiple times, and "
+             "each time adds to the existing value. Accepts either :all: to "
+             "disable all source packages, :none: to empty the set, or one or "
+             "more package names with commas between them. Packages without "
+             "binary distributions will fail to install when this option is "
+             "used on them.",
+    )
+
+
+platform = partial(
+    Option,
+    '--platform',
+    dest='platform',
+    metavar='platform',
+    default=None,
+    help=("Only use wheels compatible with <platform>. "
+          "Defaults to the platform of the running system."),
+)  # type: Callable[..., Option]
+
+
+python_version = partial(
+    Option,
+    '--python-version',
+    dest='python_version',
+    metavar='python_version',
+    default=None,
+    help=("Only use wheels compatible with Python "
+          "interpreter version <version>. If not specified, then the "
+          "current system interpreter minor version is used. A major "
+          "version (e.g. '2') can be specified to match all "
+          "minor revs of that major version.  A minor version "
+          "(e.g. '34') can also be specified."),
+)  # type: Callable[..., Option]
+
+
+implementation = partial(
+    Option,
+    '--implementation',
+    dest='implementation',
+    metavar='implementation',
+    default=None,
+    help=("Only use wheels compatible with Python "
+          "implementation <implementation>, e.g. 'pp', 'jy', 'cp', "
+          " or 'ip'. If not specified, then the current "
+          "interpreter implementation is used.  Use 'py' to force "
+          "implementation-agnostic wheels."),
+)  # type: Callable[..., Option]
+
+
+abi = partial(
+    Option,
+    '--abi',
+    dest='abi',
+    metavar='abi',
+    default=None,
+    help=("Only use wheels compatible with Python "
+          "abi <abi>, e.g. 'pypy_41'.  If not specified, then the "
+          "current interpreter abi tag is used.  Generally "
+          "you will need to specify --implementation, "
+          "--platform, and --python-version when using "
+          "this option."),
+)  # type: Callable[..., Option]
+
+
+def prefer_binary():
+    # type: () -> Option
+    return Option(
+        "--prefer-binary",
+        dest="prefer_binary",
+        action="store_true",
+        default=False,
+        help="Prefer older binary packages over newer source packages."
+    )
+
+
+cache_dir = partial(
+    Option,
+    "--cache-dir",
+    dest="cache_dir",
+    default=USER_CACHE_DIR,
+    metavar="dir",
+    help="Store the cache data in <dir>."
+)  # type: Callable[..., Option]
+
+
+def no_cache_dir_callback(option, opt, value, parser):
+    """
+    Process a value provided for the --no-cache-dir option.
+
+    This is an optparse.Option callback for the --no-cache-dir option.
+    """
+    # The value argument will be None if --no-cache-dir is passed via the
+    # command-line, since the option doesn't accept arguments.  However,
+    # the value can be non-None if the option is triggered e.g. by an
+    # environment variable, like PIP_NO_CACHE_DIR=true.
+    if value is not None:
+        # Then parse the string value to get argument error-checking.
+        try:
+            strtobool(value)
+        except ValueError as exc:
+            raise_option_error(parser, option=option, msg=str(exc))
+
+    # Originally, setting PIP_NO_CACHE_DIR to a value that strtobool()
+    # converted to 0 (like "false" or "no") caused cache_dir to be disabled
+    # rather than enabled (logic would say the latter).  Thus, we disable
+    # the cache directory not just on values that parse to True, but (for
+    # backwards compatibility reasons) also on values that parse to False.
+    # In other words, always set it to False if the option is provided in
+    # some (valid) form.
+    parser.values.cache_dir = False
+
+
+no_cache = partial(
+    Option,
+    "--no-cache-dir",
+    dest="cache_dir",
+    action="callback",
+    callback=no_cache_dir_callback,
+    help="Disable the cache.",
+)  # type: Callable[..., Option]
+
+no_deps = partial(
+    Option,
+    '--no-deps', '--no-dependencies',
+    dest='ignore_dependencies',
+    action='store_true',
+    default=False,
+    help="Don't install package dependencies.",
+)  # type: Callable[..., Option]
+
+build_dir = partial(
+    Option,
+    '-b', '--build', '--build-dir', '--build-directory',
+    dest='build_dir',
+    metavar='dir',
+    help='Directory to unpack packages into and build in. Note that '
+         'an initial build still takes place in a temporary directory. '
+         'The location of temporary directories can be controlled by setting '
+         'the TMPDIR environment variable (TEMP on Windows) appropriately. '
+         'When passed, build directories are not cleaned in case of failures.'
+)  # type: Callable[..., Option]
+
+ignore_requires_python = partial(
+    Option,
+    '--ignore-requires-python',
+    dest='ignore_requires_python',
+    action='store_true',
+    help='Ignore the Requires-Python information.'
+)  # type: Callable[..., Option]
+
+no_build_isolation = partial(
+    Option,
+    '--no-build-isolation',
+    dest='build_isolation',
+    action='store_false',
+    default=True,
+    help='Disable isolation when building a modern source distribution. '
+         'Build dependencies specified by PEP 518 must be already installed '
+         'if this option is used.'
+)  # type: Callable[..., Option]
+
+
+def no_use_pep517_callback(option, opt, value, parser):
+    """
+    Process a value provided for the --no-use-pep517 option.
+
+    This is an optparse.Option callback for the no_use_pep517 option.
+    """
+    # Since --no-use-pep517 doesn't accept arguments, the value argument
+    # will be None if --no-use-pep517 is passed via the command-line.
+    # However, the value can be non-None if the option is triggered e.g.
+    # by an environment variable, for example "PIP_NO_USE_PEP517=true".
+    if value is not None:
+        msg = """A value was passed for --no-use-pep517,
+        probably using either the PIP_NO_USE_PEP517 environment variable
+        or the "no-use-pep517" config file option. Use an appropriate value
+        of the PIP_USE_PEP517 environment variable or the "use-pep517"
+        config file option instead.
+        """
+        raise_option_error(parser, option=option, msg=msg)
+
+    # Otherwise, --no-use-pep517 was passed via the command-line.
+    parser.values.use_pep517 = False
+
+
+use_pep517 = partial(
+    Option,
+    '--use-pep517',
+    dest='use_pep517',
+    action='store_true',
+    default=None,
+    help='Use PEP 517 for building source distributions '
+         '(use --no-use-pep517 to force legacy behaviour).'
+)  # type: Any
+
+no_use_pep517 = partial(
+    Option,
+    '--no-use-pep517',
+    dest='use_pep517',
+    action='callback',
+    callback=no_use_pep517_callback,
+    default=None,
+    help=SUPPRESS_HELP
+)  # type: Any
+
+install_options = partial(
+    Option,
+    '--install-option',
+    dest='install_options',
+    action='append',
+    metavar='options',
+    help="Extra arguments to be supplied to the setup.py install "
+         "command (use like --install-option=\"--install-scripts=/usr/local/"
+         "bin\"). Use multiple --install-option options to pass multiple "
+         "options to setup.py install. If you are using an option with a "
+         "directory path, be sure to use absolute path.",
+)  # type: Callable[..., Option]
+
+global_options = partial(
+    Option,
+    '--global-option',
+    dest='global_options',
+    action='append',
+    metavar='options',
+    help="Extra global options to be supplied to the setup.py "
+         "call before the install command.",
+)  # type: Callable[..., Option]
+
+no_clean = partial(
+    Option,
+    '--no-clean',
+    action='store_true',
+    default=False,
+    help="Don't clean up build directories."
+)  # type: Callable[..., Option]
+
+pre = partial(
+    Option,
+    '--pre',
+    action='store_true',
+    default=False,
+    help="Include pre-release and development versions. By default, "
+         "pip only finds stable versions.",
+)  # type: Callable[..., Option]
+
+disable_pip_version_check = partial(
+    Option,
+    "--disable-pip-version-check",
+    dest="disable_pip_version_check",
+    action="store_true",
+    default=False,
+    help="Don't periodically check PyPI to determine whether a new version "
+         "of pip is available for download. Implied with --no-index.",
+)  # type: Callable[..., Option]
+
+
+# Deprecated, Remove later
+always_unzip = partial(
+    Option,
+    '-Z', '--always-unzip',
+    dest='always_unzip',
+    action='store_true',
+    help=SUPPRESS_HELP,
+)  # type: Callable[..., Option]
+
+
+def _merge_hash(option, opt_str, value, parser):
+    # type: (Option, str, str, OptionParser) -> None
+    """Given a value spelled "algo:digest", append the digest to a list
+    pointed to in a dict by the algo name."""
+    if not parser.values.hashes:
+        parser.values.hashes = {}  # type: ignore
+    try:
+        algo, digest = value.split(':', 1)
+    except ValueError:
+        parser.error('Arguments to %s must be a hash name '
+                     'followed by a value, like --hash=sha256:abcde...' %
+                     opt_str)
+    if algo not in STRONG_HASHES:
+        parser.error('Allowed hash algorithms for %s are %s.' %
+                     (opt_str, ', '.join(STRONG_HASHES)))
+    parser.values.hashes.setdefault(algo, []).append(digest)
+
+
+hash = partial(
+    Option,
+    '--hash',
+    # Hash values eventually end up in InstallRequirement.hashes due to
+    # __dict__ copying in process_line().
+    dest='hashes',
+    action='callback',
+    callback=_merge_hash,
+    type='string',
+    help="Verify that the package's archive matches this "
+         'hash before installing. Example: --hash=sha256:abcdef...',
+)  # type: Callable[..., Option]
+
+
+require_hashes = partial(
+    Option,
+    '--require-hashes',
+    dest='require_hashes',
+    action='store_true',
+    default=False,
+    help='Require a hash to check each requirement against, for '
+         'repeatable installs. This option is implied when any package in a '
+         'requirements file has a --hash option.',
+)  # type: Callable[..., Option]
+
+
+##########
+# groups #
+##########
+
+general_group = {
+    'name': 'General Options',
+    'options': [
+        help_,
+        isolated_mode,
+        require_virtualenv,
+        verbose,
+        version,
+        quiet,
+        log,
+        no_input,
+        proxy,
+        retries,
+        timeout,
+        skip_requirements_regex,
+        exists_action,
+        trusted_host,
+        cert,
+        client_cert,
+        cache_dir,
+        no_cache,
+        disable_pip_version_check,
+        no_color,
+    ]
+}  # type: Dict[str, Any]
+
+index_group = {
+    'name': 'Package Index Options',
+    'options': [
+        index_url,
+        extra_index_url,
+        no_index,
+        find_links,
+    ]
+}  # type: Dict[str, Any]

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/main_parser.py

@@ -0,0 +1,104 @@
+"""A single place for constructing and exposing the main parser
+"""
+
+import os
+import sys
+
+from pip import __version__
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.parser import (
+    ConfigOptionParser, UpdatingDefaultsHelpFormatter,
+)
+from pip._internal.commands import (
+    commands_dict, get_similar_commands, get_summaries,
+)
+from pip._internal.exceptions import CommandError
+from pip._internal.utils.misc import get_prog
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Tuple, List  # noqa: F401
+
+
+__all__ = ["create_main_parser", "parse_command"]
+
+
+def create_main_parser():
+    # type: () -> ConfigOptionParser
+    """Creates and returns the main parser for pip's CLI
+    """
+
+    parser_kw = {
+        'usage': '\n%prog <command> [options]',
+        'add_help_option': False,
+        'formatter': UpdatingDefaultsHelpFormatter(),
+        'name': 'global',
+        'prog': get_prog(),
+    }
+
+    parser = ConfigOptionParser(**parser_kw)
+    parser.disable_interspersed_args()
+
+    pip_pkg_dir = os.path.abspath(os.path.join(
+        os.path.dirname(__file__), "..", "..",
+    ))
+    parser.version = 'pip %s from %s (python %s)' % (
+        __version__, pip_pkg_dir, sys.version[:3],
+    )
+
+    # add the general options
+    gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
+    parser.add_option_group(gen_opts)
+
+    # so the help formatter knows
+    parser.main = True  # type: ignore
+
+    # create command listing for description
+    command_summaries = get_summaries()
+    description = [''] + ['%-27s %s' % (i, j) for i, j in command_summaries]
+    parser.description = '\n'.join(description)
+
+    return parser
+
+
+def parse_command(args):
+    # type: (List[str]) -> Tuple[str, List[str]]
+    parser = create_main_parser()
+
+    # Note: parser calls disable_interspersed_args(), so the result of this
+    # call is to split the initial args into the general options before the
+    # subcommand and everything else.
+    # For example:
+    #  args: ['--timeout=5', 'install', '--user', 'INITools']
+    #  general_options: ['--timeout==5']
+    #  args_else: ['install', '--user', 'INITools']
+    general_options, args_else = parser.parse_args(args)
+
+    # --version
+    if general_options.version:
+        sys.stdout.write(parser.version)  # type: ignore
+        sys.stdout.write(os.linesep)
+        sys.exit()
+
+    # pip || pip help -> print_help()
+    if not args_else or (args_else[0] == 'help' and len(args_else) == 1):
+        parser.print_help()
+        sys.exit()
+
+    # the subcommand name
+    cmd_name = args_else[0]
+
+    if cmd_name not in commands_dict:
+        guess = get_similar_commands(cmd_name)
+
+        msg = ['unknown command "%s"' % cmd_name]
+        if guess:
+            msg.append('maybe you meant "%s"' % guess)
+
+        raise CommandError(' - '.join(msg))
+
+    # all the args without the subcommand
+    cmd_args = args[:]
+    cmd_args.remove(cmd_name)
+
+    return cmd_name, cmd_args

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/parser.py

@@ -0,0 +1,261 @@
+"""Base option parser setup"""
+from __future__ import absolute_import
+
+import logging
+import optparse
+import sys
+import textwrap
+from distutils.util import strtobool
+
+from pip._vendor.six import string_types
+
+from pip._internal.cli.status_codes import UNKNOWN_ERROR
+from pip._internal.configuration import Configuration, ConfigurationError
+from pip._internal.utils.compat import get_terminal_size
+
+logger = logging.getLogger(__name__)
+
+
+class PrettyHelpFormatter(optparse.IndentedHelpFormatter):
+    """A prettier/less verbose help formatter for optparse."""
+
+    def __init__(self, *args, **kwargs):
+        # help position must be aligned with __init__.parseopts.description
+        kwargs['max_help_position'] = 30
+        kwargs['indent_increment'] = 1
+        kwargs['width'] = get_terminal_size()[0] - 2
+        optparse.IndentedHelpFormatter.__init__(self, *args, **kwargs)
+
+    def format_option_strings(self, option):
+        return self._format_option_strings(option, ' <%s>', ', ')
+
+    def _format_option_strings(self, option, mvarfmt=' <%s>', optsep=', '):
+        """
+        Return a comma-separated list of option strings and metavars.
+
+        :param option:  tuple of (short opt, long opt), e.g: ('-f', '--format')
+        :param mvarfmt: metavar format string - evaluated as mvarfmt % metavar
+        :param optsep:  separator
+        """
+        opts = []
+
+        if option._short_opts:
+            opts.append(option._short_opts[0])
+        if option._long_opts:
+            opts.append(option._long_opts[0])
+        if len(opts) > 1:
+            opts.insert(1, optsep)
+
+        if option.takes_value():
+            metavar = option.metavar or option.dest.lower()
+            opts.append(mvarfmt % metavar.lower())
+
+        return ''.join(opts)
+
+    def format_heading(self, heading):
+        if heading == 'Options':
+            return ''
+        return heading + ':\n'
+
+    def format_usage(self, usage):
+        """
+        Ensure there is only one newline between usage and the first heading
+        if there is no description.
+        """
+        msg = '\nUsage: %s\n' % self.indent_lines(textwrap.dedent(usage), "  ")
+        return msg
+
+    def format_description(self, description):
+        # leave full control over description to us
+        if description:
+            if hasattr(self.parser, 'main'):
+                label = 'Commands'
+            else:
+                label = 'Description'
+            # some doc strings have initial newlines, some don't
+            description = description.lstrip('\n')
+            # some doc strings have final newlines and spaces, some don't
+            description = description.rstrip()
+            # dedent, then reindent
+            description = self.indent_lines(textwrap.dedent(description), "  ")
+            description = '%s:\n%s\n' % (label, description)
+            return description
+        else:
+            return ''
+
+    def format_epilog(self, epilog):
+        # leave full control over epilog to us
+        if epilog:
+            return epilog
+        else:
+            return ''
+
+    def indent_lines(self, text, indent):
+        new_lines = [indent + line for line in text.split('\n')]
+        return "\n".join(new_lines)
+
+
+class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter):
+    """Custom help formatter for use in ConfigOptionParser.
+
+    This is updates the defaults before expanding them, allowing
+    them to show up correctly in the help listing.
+    """
+
+    def expand_default(self, option):
+        if self.parser is not None:
+            self.parser._update_defaults(self.parser.defaults)
+        return optparse.IndentedHelpFormatter.expand_default(self, option)
+
+
+class CustomOptionParser(optparse.OptionParser):
+
+    def insert_option_group(self, idx, *args, **kwargs):
+        """Insert an OptionGroup at a given position."""
+        group = self.add_option_group(*args, **kwargs)
+
+        self.option_groups.pop()
+        self.option_groups.insert(idx, group)
+
+        return group
+
+    @property
+    def option_list_all(self):
+        """Get a list of all options, including those in option groups."""
+        res = self.option_list[:]
+        for i in self.option_groups:
+            res.extend(i.option_list)
+
+        return res
+
+
+class ConfigOptionParser(CustomOptionParser):
+    """Custom option parser which updates its defaults by checking the
+    configuration files and environmental variables"""
+
+    def __init__(self, *args, **kwargs):
+        self.name = kwargs.pop('name')
+
+        isolated = kwargs.pop("isolated", False)
+        self.config = Configuration(isolated)
+
+        assert self.name
+        optparse.OptionParser.__init__(self, *args, **kwargs)
+
+    def check_default(self, option, key, val):
+        try:
+            return option.check_value(key, val)
+        except optparse.OptionValueError as exc:
+            print("An error occurred during configuration: %s" % exc)
+            sys.exit(3)
+
+    def _get_ordered_configuration_items(self):
+        # Configuration gives keys in an unordered manner. Order them.
+        override_order = ["global", self.name, ":env:"]
+
+        # Pool the options into different groups
+        section_items = {name: [] for name in override_order}
+        for section_key, val in self.config.items():
+            # ignore empty values
+            if not val:
+                logger.debug(
+                    "Ignoring configuration key '%s' as it's value is empty.",
+                    section_key
+                )
+                continue
+
+            section, key = section_key.split(".", 1)
+            if section in override_order:
+                section_items[section].append((key, val))
+
+        # Yield each group in their override order
+        for section in override_order:
+            for key, val in section_items[section]:
+                yield key, val
+
+    def _update_defaults(self, defaults):
+        """Updates the given defaults with values from the config files and
+        the environ. Does a little special handling for certain types of
+        options (lists)."""
+
+        # Accumulate complex default state.
+        self.values = optparse.Values(self.defaults)
+        late_eval = set()
+        # Then set the options with those values
+        for key, val in self._get_ordered_configuration_items():
+            # '--' because configuration supports only long names
+            option = self.get_option('--' + key)
+
+            # Ignore options not present in this parser. E.g. non-globals put
+            # in [global] by users that want them to apply to all applicable
+            # commands.
+            if option is None:
+                continue
+
+            if option.action in ('store_true', 'store_false', 'count'):
+                try:
+                    val = strtobool(val)
+                except ValueError:
+                    error_msg = invalid_config_error_message(
+                        option.action, key, val
+                    )
+                    self.error(error_msg)
+
+            elif option.action == 'append':
+                val = val.split()
+                val = [self.check_default(option, key, v) for v in val]
+            elif option.action == 'callback':
+                late_eval.add(option.dest)
+                opt_str = option.get_opt_string()
+                val = option.convert_value(opt_str, val)
+                # From take_action
+                args = option.callback_args or ()
+                kwargs = option.callback_kwargs or {}
+                option.callback(option, opt_str, val, self, *args, **kwargs)
+            else:
+                val = self.check_default(option, key, val)
+
+            defaults[option.dest] = val
+
+        for key in late_eval:
+            defaults[key] = getattr(self.values, key)
+        self.values = None
+        return defaults
+
+    def get_default_values(self):
+        """Overriding to make updating the defaults after instantiation of
+        the option parser possible, _update_defaults() does the dirty work."""
+        if not self.process_default_values:
+            # Old, pre-Optik 1.5 behaviour.
+            return optparse.Values(self.defaults)
+
+        # Load the configuration, or error out in case of an error
+        try:
+            self.config.load()
+        except ConfigurationError as err:
+            self.exit(UNKNOWN_ERROR, str(err))
+
+        defaults = self._update_defaults(self.defaults.copy())  # ours
+        for option in self._get_all_options():
+            default = defaults.get(option.dest)
+            if isinstance(default, string_types):
+                opt_str = option.get_opt_string()
+                defaults[option.dest] = option.check_value(opt_str, default)
+        return optparse.Values(defaults)
+
+    def error(self, msg):
+        self.print_usage(sys.stderr)
+        self.exit(UNKNOWN_ERROR, "%s\n" % msg)
+
+
+def invalid_config_error_message(action, key, val):
+    """Returns a better error message when invalid configuration option
+    is provided."""
+    if action in ('store_true', 'store_false'):
+        return ("{0} is not a valid value for {1} option, "
+                "please specify a boolean value like yes/no, "
+                "true/false or 1/0 instead.").format(val, key)
+
+    return ("{0} is not a valid value for {1} option, "
+            "please specify a numerical value like 1/0 "
+            "instead.").format(val, key)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/cli/status_codes.py

@@ -0,0 +1,8 @@
+from __future__ import absolute_import
+
+SUCCESS = 0
+ERROR = 1
+UNKNOWN_ERROR = 2
+VIRTUALENV_NOT_FOUND = 3
+PREVIOUS_BUILD_DIR_ERROR = 4
+NO_MATCHES_FOUND = 23

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/__init__.py

@@ -0,0 +1,79 @@
+"""
+Package containing all pip commands
+"""
+from __future__ import absolute_import
+
+from pip._internal.commands.completion import CompletionCommand
+from pip._internal.commands.configuration import ConfigurationCommand
+from pip._internal.commands.download import DownloadCommand
+from pip._internal.commands.freeze import FreezeCommand
+from pip._internal.commands.hash import HashCommand
+from pip._internal.commands.help import HelpCommand
+from pip._internal.commands.list import ListCommand
+from pip._internal.commands.check import CheckCommand
+from pip._internal.commands.search import SearchCommand
+from pip._internal.commands.show import ShowCommand
+from pip._internal.commands.install import InstallCommand
+from pip._internal.commands.uninstall import UninstallCommand
+from pip._internal.commands.wheel import WheelCommand
+
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import List, Type  # noqa: F401
+    from pip._internal.cli.base_command import Command  # noqa: F401
+
+commands_order = [
+    InstallCommand,
+    DownloadCommand,
+    UninstallCommand,
+    FreezeCommand,
+    ListCommand,
+    ShowCommand,
+    CheckCommand,
+    ConfigurationCommand,
+    SearchCommand,
+    WheelCommand,
+    HashCommand,
+    CompletionCommand,
+    HelpCommand,
+]  # type: List[Type[Command]]
+
+commands_dict = {c.name: c for c in commands_order}
+
+
+def get_summaries(ordered=True):
+    """Yields sorted (command name, command summary) tuples."""
+
+    if ordered:
+        cmditems = _sort_commands(commands_dict, commands_order)
+    else:
+        cmditems = commands_dict.items()
+
+    for name, command_class in cmditems:
+        yield (name, command_class.summary)
+
+
+def get_similar_commands(name):
+    """Command name auto-correct."""
+    from difflib import get_close_matches
+
+    name = name.lower()
+
+    close_commands = get_close_matches(name, commands_dict.keys())
+
+    if close_commands:
+        return close_commands[0]
+    else:
+        return False
+
+
+def _sort_commands(cmddict, order):
+    def keyfn(key):
+        try:
+            return order.index(key[1])
+        except ValueError:
+            # unordered items should come last
+            return 0xff
+
+    return sorted(cmddict.items(), key=keyfn)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/check.py

@@ -0,0 +1,41 @@
+import logging
+
+from pip._internal.cli.base_command import Command
+from pip._internal.operations.check import (
+    check_package_set, create_package_set_from_installed,
+)
+
+logger = logging.getLogger(__name__)
+
+
+class CheckCommand(Command):
+    """Verify installed packages have compatible dependencies."""
+    name = 'check'
+    usage = """
+      %prog [options]"""
+    summary = 'Verify installed packages have compatible dependencies.'
+
+    def run(self, options, args):
+        package_set, parsing_probs = create_package_set_from_installed()
+        missing, conflicting = check_package_set(package_set)
+
+        for project_name in missing:
+            version = package_set[project_name].version
+            for dependency in missing[project_name]:
+                logger.info(
+                    "%s %s requires %s, which is not installed.",
+                    project_name, version, dependency[0],
+                )
+
+        for project_name in conflicting:
+            version = package_set[project_name].version
+            for dep_name, dep_version, req in conflicting[project_name]:
+                logger.info(
+                    "%s %s has requirement %s, but you have %s %s.",
+                    project_name, version, req, dep_name, dep_version,
+                )
+
+        if missing or conflicting or parsing_probs:
+            return 1
+        else:
+            logger.info("No broken requirements found.")

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/completion.py

@@ -0,0 +1,94 @@
+from __future__ import absolute_import
+
+import sys
+import textwrap
+
+from pip._internal.cli.base_command import Command
+from pip._internal.utils.misc import get_prog
+
+BASE_COMPLETION = """
+# pip %(shell)s completion start%(script)s# pip %(shell)s completion end
+"""
+
+COMPLETION_SCRIPTS = {
+    'bash': """
+        _pip_completion()
+        {
+            COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \\
+                           COMP_CWORD=$COMP_CWORD \\
+                           PIP_AUTO_COMPLETE=1 $1 ) )
+        }
+        complete -o default -F _pip_completion %(prog)s
+    """,
+    'zsh': """
+        function _pip_completion {
+          local words cword
+          read -Ac words
+          read -cn cword
+          reply=( $( COMP_WORDS="$words[*]" \\
+                     COMP_CWORD=$(( cword-1 )) \\
+                     PIP_AUTO_COMPLETE=1 $words[1] ) )
+        }
+        compctl -K _pip_completion %(prog)s
+    """,
+    'fish': """
+        function __fish_complete_pip
+            set -lx COMP_WORDS (commandline -o) ""
+            set -lx COMP_CWORD ( \\
+                math (contains -i -- (commandline -t) $COMP_WORDS)-1 \\
+            )
+            set -lx PIP_AUTO_COMPLETE 1
+            string split \\  -- (eval $COMP_WORDS[1])
+        end
+        complete -fa "(__fish_complete_pip)" -c %(prog)s
+    """,
+}
+
+
+class CompletionCommand(Command):
+    """A helper command to be used for command completion."""
+    name = 'completion'
+    summary = 'A helper command used for command completion.'
+    ignore_require_venv = True
+
+    def __init__(self, *args, **kw):
+        super(CompletionCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '--bash', '-b',
+            action='store_const',
+            const='bash',
+            dest='shell',
+            help='Emit completion code for bash')
+        cmd_opts.add_option(
+            '--zsh', '-z',
+            action='store_const',
+            const='zsh',
+            dest='shell',
+            help='Emit completion code for zsh')
+        cmd_opts.add_option(
+            '--fish', '-f',
+            action='store_const',
+            const='fish',
+            dest='shell',
+            help='Emit completion code for fish')
+
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        """Prints the completion code of the given shell"""
+        shells = COMPLETION_SCRIPTS.keys()
+        shell_options = ['--' + shell for shell in sorted(shells)]
+        if options.shell in shells:
+            script = textwrap.dedent(
+                COMPLETION_SCRIPTS.get(options.shell, '') % {
+                    'prog': get_prog(),
+                }
+            )
+            print(BASE_COMPLETION % {'script': script, 'shell': options.shell})
+        else:
+            sys.stderr.write(
+                'ERROR: You must pass %s\n' % ' or '.join(shell_options)
+            )

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/configuration.py

@@ -0,0 +1,227 @@
+import logging
+import os
+import subprocess
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+from pip._internal.configuration import Configuration, kinds
+from pip._internal.exceptions import PipError
+from pip._internal.locations import venv_config_file
+from pip._internal.utils.misc import get_prog
+
+logger = logging.getLogger(__name__)
+
+
+class ConfigurationCommand(Command):
+    """Manage local and global configuration.
+
+        Subcommands:
+
+        list: List the active configuration (or from the file specified)
+        edit: Edit the configuration file in an editor
+        get: Get the value associated with name
+        set: Set the name=value
+        unset: Unset the value associated with name
+
+        If none of --user, --global and --venv are passed, a virtual
+        environment configuration file is used if one is active and the file
+        exists. Otherwise, all modifications happen on the to the user file by
+        default.
+    """
+
+    name = 'config'
+    usage = """
+        %prog [<file-option>] list
+        %prog [<file-option>] [--editor <editor-path>] edit
+
+        %prog [<file-option>] get name
+        %prog [<file-option>] set name value
+        %prog [<file-option>] unset name
+    """
+
+    summary = "Manage local and global configuration."
+
+    def __init__(self, *args, **kwargs):
+        super(ConfigurationCommand, self).__init__(*args, **kwargs)
+
+        self.configuration = None
+
+        self.cmd_opts.add_option(
+            '--editor',
+            dest='editor',
+            action='store',
+            default=None,
+            help=(
+                'Editor to use to edit the file. Uses VISUAL or EDITOR '
+                'environment variables if not provided.'
+            )
+        )
+
+        self.cmd_opts.add_option(
+            '--global',
+            dest='global_file',
+            action='store_true',
+            default=False,
+            help='Use the system-wide configuration file only'
+        )
+
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user_file',
+            action='store_true',
+            default=False,
+            help='Use the user configuration file only'
+        )
+
+        self.cmd_opts.add_option(
+            '--venv',
+            dest='venv_file',
+            action='store_true',
+            default=False,
+            help='Use the virtualenv configuration file only'
+        )
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        handlers = {
+            "list": self.list_values,
+            "edit": self.open_in_editor,
+            "get": self.get_name,
+            "set": self.set_name_value,
+            "unset": self.unset_name
+        }
+
+        # Determine action
+        if not args or args[0] not in handlers:
+            logger.error("Need an action ({}) to perform.".format(
+                ", ".join(sorted(handlers)))
+            )
+            return ERROR
+
+        action = args[0]
+
+        # Determine which configuration files are to be loaded
+        #    Depends on whether the command is modifying.
+        try:
+            load_only = self._determine_file(
+                options, need_value=(action in ["get", "set", "unset", "edit"])
+            )
+        except PipError as e:
+            logger.error(e.args[0])
+            return ERROR
+
+        # Load a new configuration
+        self.configuration = Configuration(
+            isolated=options.isolated_mode, load_only=load_only
+        )
+        self.configuration.load()
+
+        # Error handling happens here, not in the action-handlers.
+        try:
+            handlers[action](options, args[1:])
+        except PipError as e:
+            logger.error(e.args[0])
+            return ERROR
+
+        return SUCCESS
+
+    def _determine_file(self, options, need_value):
+        file_options = {
+            kinds.USER: options.user_file,
+            kinds.GLOBAL: options.global_file,
+            kinds.VENV: options.venv_file
+        }
+
+        if sum(file_options.values()) == 0:
+            if not need_value:
+                return None
+            # Default to user, unless there's a virtualenv file.
+            elif os.path.exists(venv_config_file):
+                return kinds.VENV
+            else:
+                return kinds.USER
+        elif sum(file_options.values()) == 1:
+            # There's probably a better expression for this.
+            return [key for key in file_options if file_options[key]][0]
+
+        raise PipError(
+            "Need exactly one file to operate upon "
+            "(--user, --venv, --global) to perform."
+        )
+
+    def list_values(self, options, args):
+        self._get_n_args(args, "list", n=0)
+
+        for key, value in sorted(self.configuration.items()):
+            logger.info("%s=%r", key, value)
+
+    def get_name(self, options, args):
+        key = self._get_n_args(args, "get [name]", n=1)
+        value = self.configuration.get_value(key)
+
+        logger.info("%s", value)
+
+    def set_name_value(self, options, args):
+        key, value = self._get_n_args(args, "set [name] [value]", n=2)
+        self.configuration.set_value(key, value)
+
+        self._save_configuration()
+
+    def unset_name(self, options, args):
+        key = self._get_n_args(args, "unset [name]", n=1)
+        self.configuration.unset_value(key)
+
+        self._save_configuration()
+
+    def open_in_editor(self, options, args):
+        editor = self._determine_editor(options)
+
+        fname = self.configuration.get_file_to_edit()
+        if fname is None:
+            raise PipError("Could not determine appropriate file.")
+
+        try:
+            subprocess.check_call([editor, fname])
+        except subprocess.CalledProcessError as e:
+            raise PipError(
+                "Editor Subprocess exited with exit code {}"
+                .format(e.returncode)
+            )
+
+    def _get_n_args(self, args, example, n):
+        """Helper to make sure the command got the right number of arguments
+        """
+        if len(args) != n:
+            msg = (
+                'Got unexpected number of arguments, expected {}. '
+                '(example: "{} config {}")'
+            ).format(n, get_prog(), example)
+            raise PipError(msg)
+
+        if n == 1:
+            return args[0]
+        else:
+            return args
+
+    def _save_configuration(self):
+        # We successfully ran a modifying command. Need to save the
+        # configuration.
+        try:
+            self.configuration.save()
+        except Exception:
+            logger.error(
+                "Unable to save configuration. Please report this as a bug.",
+                exc_info=1
+            )
+            raise PipError("Internal Error.")
+
+    def _determine_editor(self, options):
+        if options.editor is not None:
+            return options.editor
+        elif "VISUAL" in os.environ:
+            return os.environ["VISUAL"]
+        elif "EDITOR" in os.environ:
+            return os.environ["EDITOR"]
+        else:
+            raise PipError("Could not determine editor to use.")

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/download.py

@@ -0,0 +1,176 @@
+from __future__ import absolute_import
+
+import logging
+import os
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import RequirementCommand
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req import RequirementSet
+from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.resolve import Resolver
+from pip._internal.utils.filesystem import check_path_owner
+from pip._internal.utils.misc import ensure_dir, normalize_path
+from pip._internal.utils.temp_dir import TempDirectory
+
+logger = logging.getLogger(__name__)
+
+
+class DownloadCommand(RequirementCommand):
+    """
+    Download packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports downloading from "requirements files", which provide
+    an easy way to specify a whole environment to be downloaded.
+    """
+    name = 'download'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] <vcs project url> ...
+      %prog [options] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Download packages.'
+
+    def __init__(self, *args, **kw):
+        super(DownloadCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.build_dir())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.global_options())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.prefer_binary())
+        cmd_opts.add_option(cmdoptions.src())
+        cmd_opts.add_option(cmdoptions.pre())
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+        cmd_opts.add_option(cmdoptions.progress_bar())
+        cmd_opts.add_option(cmdoptions.no_build_isolation())
+        cmd_opts.add_option(cmdoptions.use_pep517())
+        cmd_opts.add_option(cmdoptions.no_use_pep517())
+
+        cmd_opts.add_option(
+            '-d', '--dest', '--destination-dir', '--destination-directory',
+            dest='download_dir',
+            metavar='dir',
+            default=os.curdir,
+            help=("Download packages into <dir>."),
+        )
+
+        cmd_opts.add_option(cmdoptions.platform())
+        cmd_opts.add_option(cmdoptions.python_version())
+        cmd_opts.add_option(cmdoptions.implementation())
+        cmd_opts.add_option(cmdoptions.abi())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        options.ignore_installed = True
+        # editable doesn't really make sense for `pip download`, but the bowels
+        # of the RequirementSet code require that property.
+        options.editables = []
+
+        if options.python_version:
+            python_versions = [options.python_version]
+        else:
+            python_versions = None
+
+        cmdoptions.check_dist_restriction(options)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        options.download_dir = normalize_path(options.download_dir)
+
+        ensure_dir(options.download_dir)
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(
+                options=options,
+                session=session,
+                platform=options.platform,
+                python_versions=python_versions,
+                abi=options.abi,
+                implementation=options.implementation,
+            )
+            build_delete = (not (options.no_clean or options.build_dir))
+            if options.cache_dir and not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "by the current user and caching wheels has been "
+                    "disabled. check the permissions and owner of that "
+                    "directory. If executing pip with sudo, you may want "
+                    "sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+            with RequirementTracker() as req_tracker, TempDirectory(
+                options.build_dir, delete=build_delete, kind="download"
+            ) as directory:
+
+                requirement_set = RequirementSet(
+                    require_hashes=options.require_hashes,
+                )
+                self.populate_requirement_set(
+                    requirement_set,
+                    args,
+                    options,
+                    finder,
+                    session,
+                    self.name,
+                    None
+                )
+
+                preparer = RequirementPreparer(
+                    build_dir=directory.path,
+                    src_dir=options.src_dir,
+                    download_dir=options.download_dir,
+                    wheel_download_dir=None,
+                    progress_bar=options.progress_bar,
+                    build_isolation=options.build_isolation,
+                    req_tracker=req_tracker,
+                )
+
+                resolver = Resolver(
+                    preparer=preparer,
+                    finder=finder,
+                    session=session,
+                    wheel_cache=None,
+                    use_user_site=False,
+                    upgrade_strategy="to-satisfy-only",
+                    force_reinstall=False,
+                    ignore_dependencies=options.ignore_dependencies,
+                    ignore_requires_python=False,
+                    ignore_installed=True,
+                    isolated=options.isolated_mode,
+                )
+                resolver.resolve(requirement_set)
+
+                downloaded = ' '.join([
+                    req.name for req in requirement_set.successfully_downloaded
+                ])
+                if downloaded:
+                    logger.info('Successfully downloaded %s', downloaded)
+
+                # Clean up
+                if not options.no_clean:
+                    requirement_set.cleanup_files()
+
+        return requirement_set

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/freeze.py

@@ -0,0 +1,96 @@
+from __future__ import absolute_import
+
+import sys
+
+from pip._internal.cache import WheelCache
+from pip._internal.cli.base_command import Command
+from pip._internal.models.format_control import FormatControl
+from pip._internal.operations.freeze import freeze
+from pip._internal.utils.compat import stdlib_pkgs
+
+DEV_PKGS = {'pip', 'setuptools', 'distribute', 'wheel'}
+
+
+class FreezeCommand(Command):
+    """
+    Output installed packages in requirements format.
+
+    packages are listed in a case-insensitive sorted order.
+    """
+    name = 'freeze'
+    usage = """
+      %prog [options]"""
+    summary = 'Output installed packages in requirements format.'
+    log_streams = ("ext://sys.stderr", "ext://sys.stderr")
+
+    def __init__(self, *args, **kw):
+        super(FreezeCommand, self).__init__(*args, **kw)
+
+        self.cmd_opts.add_option(
+            '-r', '--requirement',
+            dest='requirements',
+            action='append',
+            default=[],
+            metavar='file',
+            help="Use the order in the given requirements file and its "
+                 "comments when generating output. This option can be "
+                 "used multiple times.")
+        self.cmd_opts.add_option(
+            '-f', '--find-links',
+            dest='find_links',
+            action='append',
+            default=[],
+            metavar='URL',
+            help='URL for finding packages, which will be added to the '
+                 'output.')
+        self.cmd_opts.add_option(
+            '-l', '--local',
+            dest='local',
+            action='store_true',
+            default=False,
+            help='If in a virtualenv that has global access, do not output '
+                 'globally-installed packages.')
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user',
+            action='store_true',
+            default=False,
+            help='Only output packages installed in user-site.')
+        self.cmd_opts.add_option(
+            '--all',
+            dest='freeze_all',
+            action='store_true',
+            help='Do not skip these packages in the output:'
+                 ' %s' % ', '.join(DEV_PKGS))
+        self.cmd_opts.add_option(
+            '--exclude-editable',
+            dest='exclude_editable',
+            action='store_true',
+            help='Exclude editable package from output.')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        format_control = FormatControl(set(), set())
+        wheel_cache = WheelCache(options.cache_dir, format_control)
+        skip = set(stdlib_pkgs)
+        if not options.freeze_all:
+            skip.update(DEV_PKGS)
+
+        freeze_kwargs = dict(
+            requirement=options.requirements,
+            find_links=options.find_links,
+            local_only=options.local,
+            user_only=options.user,
+            skip_regex=options.skip_requirements_regex,
+            isolated=options.isolated_mode,
+            wheel_cache=wheel_cache,
+            skip=skip,
+            exclude_editable=options.exclude_editable,
+        )
+
+        try:
+            for line in freeze(**freeze_kwargs):
+                sys.stdout.write(line + '\n')
+        finally:
+            wheel_cache.cleanup()

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/hash.py

@@ -0,0 +1,57 @@
+from __future__ import absolute_import
+
+import hashlib
+import logging
+import sys
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR
+from pip._internal.utils.hashes import FAVORITE_HASH, STRONG_HASHES
+from pip._internal.utils.misc import read_chunks
+
+logger = logging.getLogger(__name__)
+
+
+class HashCommand(Command):
+    """
+    Compute a hash of a local package archive.
+
+    These can be used with --hash in a requirements file to do repeatable
+    installs.
+
+    """
+    name = 'hash'
+    usage = '%prog [options] <file> ...'
+    summary = 'Compute hashes of package archives.'
+    ignore_require_venv = True
+
+    def __init__(self, *args, **kw):
+        super(HashCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-a', '--algorithm',
+            dest='algorithm',
+            choices=STRONG_HASHES,
+            action='store',
+            default=FAVORITE_HASH,
+            help='The hash algorithm to use: one of %s' %
+                 ', '.join(STRONG_HASHES))
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            self.parser.print_usage(sys.stderr)
+            return ERROR
+
+        algorithm = options.algorithm
+        for path in args:
+            logger.info('%s:\n--hash=%s:%s',
+                        path, algorithm, _hash_of_file(path, algorithm))
+
+
+def _hash_of_file(path, algorithm):
+    """Return the hash digest of a file."""
+    with open(path, 'rb') as archive:
+        hash = hashlib.new(algorithm)
+        for chunk in read_chunks(archive):
+            hash.update(chunk)
+    return hash.hexdigest()

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/help.py

@@ -0,0 +1,37 @@
+from __future__ import absolute_import
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import SUCCESS
+from pip._internal.exceptions import CommandError
+
+
+class HelpCommand(Command):
+    """Show help for commands"""
+    name = 'help'
+    usage = """
+      %prog <command>"""
+    summary = 'Show help for commands.'
+    ignore_require_venv = True
+
+    def run(self, options, args):
+        from pip._internal.commands import commands_dict, get_similar_commands
+
+        try:
+            # 'pip help' with no args is handled by pip.__init__.parseopt()
+            cmd_name = args[0]  # the command we need help for
+        except IndexError:
+            return SUCCESS
+
+        if cmd_name not in commands_dict:
+            guess = get_similar_commands(cmd_name)
+
+            msg = ['unknown command "%s"' % cmd_name]
+            if guess:
+                msg.append('maybe you meant "%s"' % guess)
+
+            raise CommandError(' - '.join(msg))
+
+        command = commands_dict[cmd_name]()
+        command.parser.print_help()
+
+        return SUCCESS

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/install.py

@@ -0,0 +1,566 @@
+from __future__ import absolute_import
+
+import errno
+import logging
+import operator
+import os
+import shutil
+from optparse import SUPPRESS_HELP
+
+from pip._vendor import pkg_resources
+
+from pip._internal.cache import WheelCache
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import RequirementCommand
+from pip._internal.cli.status_codes import ERROR
+from pip._internal.exceptions import (
+    CommandError, InstallationError, PreviousBuildDirError,
+)
+from pip._internal.locations import distutils_scheme, virtualenv_no_global
+from pip._internal.operations.check import check_install_conflicts
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req import RequirementSet, install_given_reqs
+from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.resolve import Resolver
+from pip._internal.utils.filesystem import check_path_owner
+from pip._internal.utils.misc import (
+    ensure_dir, get_installed_version,
+    protect_pip_from_modification_on_windows,
+)
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.wheel import WheelBuilder
+
+logger = logging.getLogger(__name__)
+
+
+class InstallCommand(RequirementCommand):
+    """
+    Install packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports installing from "requirements files", which provide
+    an easy way to specify a whole environment to be installed.
+    """
+    name = 'install'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Install packages.'
+
+    def __init__(self, *args, **kw):
+        super(InstallCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.pre())
+
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(
+            '-t', '--target',
+            dest='target_dir',
+            metavar='dir',
+            default=None,
+            help='Install packages into <dir>. '
+                 'By default this will not replace existing files/folders in '
+                 '<dir>. Use --upgrade to replace existing packages in <dir> '
+                 'with new versions.'
+        )
+        cmd_opts.add_option(cmdoptions.platform())
+        cmd_opts.add_option(cmdoptions.python_version())
+        cmd_opts.add_option(cmdoptions.implementation())
+        cmd_opts.add_option(cmdoptions.abi())
+
+        cmd_opts.add_option(
+            '--user',
+            dest='use_user_site',
+            action='store_true',
+            help="Install to the Python user install directory for your "
+                 "platform. Typically ~/.local/, or %APPDATA%\\Python on "
+                 "Windows. (See the Python documentation for site.USER_BASE "
+                 "for full details.)")
+        cmd_opts.add_option(
+            '--no-user',
+            dest='use_user_site',
+            action='store_false',
+            help=SUPPRESS_HELP)
+        cmd_opts.add_option(
+            '--root',
+            dest='root_path',
+            metavar='dir',
+            default=None,
+            help="Install everything relative to this alternate root "
+                 "directory.")
+        cmd_opts.add_option(
+            '--prefix',
+            dest='prefix_path',
+            metavar='dir',
+            default=None,
+            help="Installation prefix where lib, bin and other top-level "
+                 "folders are placed")
+
+        cmd_opts.add_option(cmdoptions.build_dir())
+
+        cmd_opts.add_option(cmdoptions.src())
+
+        cmd_opts.add_option(
+            '-U', '--upgrade',
+            dest='upgrade',
+            action='store_true',
+            help='Upgrade all specified packages to the newest available '
+                 'version. The handling of dependencies depends on the '
+                 'upgrade-strategy used.'
+        )
+
+        cmd_opts.add_option(
+            '--upgrade-strategy',
+            dest='upgrade_strategy',
+            default='only-if-needed',
+            choices=['only-if-needed', 'eager'],
+            help='Determines how dependency upgrading should be handled '
+                 '[default: %default]. '
+                 '"eager" - dependencies are upgraded regardless of '
+                 'whether the currently installed version satisfies the '
+                 'requirements of the upgraded package(s). '
+                 '"only-if-needed" -  are upgraded only when they do not '
+                 'satisfy the requirements of the upgraded package(s).'
+        )
+
+        cmd_opts.add_option(
+            '--force-reinstall',
+            dest='force_reinstall',
+            action='store_true',
+            help='Reinstall all packages even if they are already '
+                 'up-to-date.')
+
+        cmd_opts.add_option(
+            '-I', '--ignore-installed',
+            dest='ignore_installed',
+            action='store_true',
+            help='Ignore the installed packages (reinstalling instead).')
+
+        cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        cmd_opts.add_option(cmdoptions.no_build_isolation())
+        cmd_opts.add_option(cmdoptions.use_pep517())
+        cmd_opts.add_option(cmdoptions.no_use_pep517())
+
+        cmd_opts.add_option(cmdoptions.install_options())
+        cmd_opts.add_option(cmdoptions.global_options())
+
+        cmd_opts.add_option(
+            "--compile",
+            action="store_true",
+            dest="compile",
+            default=True,
+            help="Compile Python source files to bytecode",
+        )
+
+        cmd_opts.add_option(
+            "--no-compile",
+            action="store_false",
+            dest="compile",
+            help="Do not compile Python source files to bytecode",
+        )
+
+        cmd_opts.add_option(
+            "--no-warn-script-location",
+            action="store_false",
+            dest="warn_script_location",
+            default=True,
+            help="Do not warn when installing scripts outside PATH",
+        )
+        cmd_opts.add_option(
+            "--no-warn-conflicts",
+            action="store_false",
+            dest="warn_about_conflicts",
+            default=True,
+            help="Do not warn about broken dependencies",
+        )
+
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.prefer_binary())
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+        cmd_opts.add_option(cmdoptions.progress_bar())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        cmdoptions.check_install_build_global(options)
+        upgrade_strategy = "to-satisfy-only"
+        if options.upgrade:
+            upgrade_strategy = options.upgrade_strategy
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        cmdoptions.check_dist_restriction(options, check_target=True)
+
+        if options.python_version:
+            python_versions = [options.python_version]
+        else:
+            python_versions = None
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        install_options = options.install_options or []
+        if options.use_user_site:
+            if options.prefix_path:
+                raise CommandError(
+                    "Can not combine '--user' and '--prefix' as they imply "
+                    "different installation locations"
+                )
+            if virtualenv_no_global():
+                raise InstallationError(
+                    "Can not perform a '--user' install. User site-packages "
+                    "are not visible in this virtualenv."
+                )
+            install_options.append('--user')
+            install_options.append('--prefix=')
+
+        target_temp_dir = TempDirectory(kind="target")
+        if options.target_dir:
+            options.ignore_installed = True
+            options.target_dir = os.path.abspath(options.target_dir)
+            if (os.path.exists(options.target_dir) and not
+                    os.path.isdir(options.target_dir)):
+                raise CommandError(
+                    "Target path exists but is not a directory, will not "
+                    "continue."
+                )
+
+            # Create a target directory for using with the target option
+            target_temp_dir.create()
+            install_options.append('--home=' + target_temp_dir.path)
+
+        global_options = options.global_options or []
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(
+                options=options,
+                session=session,
+                platform=options.platform,
+                python_versions=python_versions,
+                abi=options.abi,
+                implementation=options.implementation,
+            )
+            build_delete = (not (options.no_clean or options.build_dir))
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+
+            if options.cache_dir and not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "by the current user and caching wheels has been "
+                    "disabled. check the permissions and owner of that "
+                    "directory. If executing pip with sudo, you may want "
+                    "sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+            with RequirementTracker() as req_tracker, TempDirectory(
+                options.build_dir, delete=build_delete, kind="install"
+            ) as directory:
+                requirement_set = RequirementSet(
+                    require_hashes=options.require_hashes,
+                    check_supported_wheels=not options.target_dir,
+                )
+
+                try:
+                    self.populate_requirement_set(
+                        requirement_set, args, options, finder, session,
+                        self.name, wheel_cache
+                    )
+                    preparer = RequirementPreparer(
+                        build_dir=directory.path,
+                        src_dir=options.src_dir,
+                        download_dir=None,
+                        wheel_download_dir=None,
+                        progress_bar=options.progress_bar,
+                        build_isolation=options.build_isolation,
+                        req_tracker=req_tracker,
+                    )
+
+                    resolver = Resolver(
+                        preparer=preparer,
+                        finder=finder,
+                        session=session,
+                        wheel_cache=wheel_cache,
+                        use_user_site=options.use_user_site,
+                        upgrade_strategy=upgrade_strategy,
+                        force_reinstall=options.force_reinstall,
+                        ignore_dependencies=options.ignore_dependencies,
+                        ignore_requires_python=options.ignore_requires_python,
+                        ignore_installed=options.ignore_installed,
+                        isolated=options.isolated_mode,
+                        use_pep517=options.use_pep517
+                    )
+                    resolver.resolve(requirement_set)
+
+                    protect_pip_from_modification_on_windows(
+                        modifying_pip=requirement_set.has_requirement("pip")
+                    )
+
+                    # Consider legacy and PEP517-using requirements separately
+                    legacy_requirements = []
+                    pep517_requirements = []
+                    for req in requirement_set.requirements.values():
+                        if req.use_pep517:
+                            pep517_requirements.append(req)
+                        else:
+                            legacy_requirements.append(req)
+
+                    # We don't build wheels for legacy requirements if we
+                    # don't have wheel installed or we don't have a cache dir
+                    try:
+                        import wheel  # noqa: F401
+                        build_legacy = bool(options.cache_dir)
+                    except ImportError:
+                        build_legacy = False
+
+                    wb = WheelBuilder(
+                        finder, preparer, wheel_cache,
+                        build_options=[], global_options=[],
+                    )
+
+                    # Always build PEP 517 requirements
+                    build_failures = wb.build(
+                        pep517_requirements,
+                        session=session, autobuilding=True
+                    )
+
+                    if build_legacy:
+                        # We don't care about failures building legacy
+                        # requirements, as we'll fall through to a direct
+                        # install for those.
+                        wb.build(
+                            legacy_requirements,
+                            session=session, autobuilding=True
+                        )
+
+                    # If we're using PEP 517, we cannot do a direct install
+                    # so we fail here.
+                    if build_failures:
+                        raise InstallationError(
+                            "Could not build wheels for {} which use"
+                            " PEP 517 and cannot be installed directly".format(
+                                ", ".join(r.name for r in build_failures)))
+
+                    to_install = resolver.get_installation_order(
+                        requirement_set
+                    )
+
+                    # Consistency Checking of the package set we're installing.
+                    should_warn_about_conflicts = (
+                        not options.ignore_dependencies and
+                        options.warn_about_conflicts
+                    )
+                    if should_warn_about_conflicts:
+                        self._warn_about_conflicts(to_install)
+
+                    # Don't warn about script install locations if
+                    # --target has been specified
+                    warn_script_location = options.warn_script_location
+                    if options.target_dir:
+                        warn_script_location = False
+
+                    installed = install_given_reqs(
+                        to_install,
+                        install_options,
+                        global_options,
+                        root=options.root_path,
+                        home=target_temp_dir.path,
+                        prefix=options.prefix_path,
+                        pycompile=options.compile,
+                        warn_script_location=warn_script_location,
+                        use_user_site=options.use_user_site,
+                    )
+
+                    lib_locations = get_lib_location_guesses(
+                        user=options.use_user_site,
+                        home=target_temp_dir.path,
+                        root=options.root_path,
+                        prefix=options.prefix_path,
+                        isolated=options.isolated_mode,
+                    )
+                    working_set = pkg_resources.WorkingSet(lib_locations)
+
+                    reqs = sorted(installed, key=operator.attrgetter('name'))
+                    items = []
+                    for req in reqs:
+                        item = req.name
+                        try:
+                            installed_version = get_installed_version(
+                                req.name, working_set=working_set
+                            )
+                            if installed_version:
+                                item += '-' + installed_version
+                        except Exception:
+                            pass
+                        items.append(item)
+                    installed = ' '.join(items)
+                    if installed:
+                        logger.info('Successfully installed %s', installed)
+                except EnvironmentError as error:
+                    show_traceback = (self.verbosity >= 1)
+
+                    message = create_env_error_message(
+                        error, show_traceback, options.use_user_site,
+                    )
+                    logger.error(message, exc_info=show_traceback)
+
+                    return ERROR
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    # Clean up
+                    if not options.no_clean:
+                        requirement_set.cleanup_files()
+                        wheel_cache.cleanup()
+
+        if options.target_dir:
+            self._handle_target_dir(
+                options.target_dir, target_temp_dir, options.upgrade
+            )
+        return requirement_set
+
+    def _handle_target_dir(self, target_dir, target_temp_dir, upgrade):
+        ensure_dir(target_dir)
+
+        # Checking both purelib and platlib directories for installed
+        # packages to be moved to target directory
+        lib_dir_list = []
+
+        with target_temp_dir:
+            # Checking both purelib and platlib directories for installed
+            # packages to be moved to target directory
+            scheme = distutils_scheme('', home=target_temp_dir.path)
+            purelib_dir = scheme['purelib']
+            platlib_dir = scheme['platlib']
+            data_dir = scheme['data']
+
+            if os.path.exists(purelib_dir):
+                lib_dir_list.append(purelib_dir)
+            if os.path.exists(platlib_dir) and platlib_dir != purelib_dir:
+                lib_dir_list.append(platlib_dir)
+            if os.path.exists(data_dir):
+                lib_dir_list.append(data_dir)
+
+            for lib_dir in lib_dir_list:
+                for item in os.listdir(lib_dir):
+                    if lib_dir == data_dir:
+                        ddir = os.path.join(data_dir, item)
+                        if any(s.startswith(ddir) for s in lib_dir_list[:-1]):
+                            continue
+                    target_item_dir = os.path.join(target_dir, item)
+                    if os.path.exists(target_item_dir):
+                        if not upgrade:
+                            logger.warning(
+                                'Target directory %s already exists. Specify '
+                                '--upgrade to force replacement.',
+                                target_item_dir
+                            )
+                            continue
+                        if os.path.islink(target_item_dir):
+                            logger.warning(
+                                'Target directory %s already exists and is '
+                                'a link. Pip will not automatically replace '
+                                'links, please remove if replacement is '
+                                'desired.',
+                                target_item_dir
+                            )
+                            continue
+                        if os.path.isdir(target_item_dir):
+                            shutil.rmtree(target_item_dir)
+                        else:
+                            os.remove(target_item_dir)
+
+                    shutil.move(
+                        os.path.join(lib_dir, item),
+                        target_item_dir
+                    )
+
+    def _warn_about_conflicts(self, to_install):
+        try:
+            package_set, _dep_info = check_install_conflicts(to_install)
+        except Exception:
+            logger.error("Error checking for conflicts.", exc_info=True)
+            return
+        missing, conflicting = _dep_info
+
+        # NOTE: There is some duplication here from pip check
+        for project_name in missing:
+            version = package_set[project_name][0]
+            for dependency in missing[project_name]:
+                logger.critical(
+                    "%s %s requires %s, which is not installed.",
+                    project_name, version, dependency[1],
+                )
+
+        for project_name in conflicting:
+            version = package_set[project_name][0]
+            for dep_name, dep_version, req in conflicting[project_name]:
+                logger.critical(
+                    "%s %s has requirement %s, but you'll have %s %s which is "
+                    "incompatible.",
+                    project_name, version, req, dep_name, dep_version,
+                )
+
+
+def get_lib_location_guesses(*args, **kwargs):
+    scheme = distutils_scheme('', *args, **kwargs)
+    return [scheme['purelib'], scheme['platlib']]
+
+
+def create_env_error_message(error, show_traceback, using_user_site):
+    """Format an error message for an EnvironmentError
+
+    It may occur anytime during the execution of the install command.
+    """
+    parts = []
+
+    # Mention the error if we are not going to show a traceback
+    parts.append("Could not install packages due to an EnvironmentError")
+    if not show_traceback:
+        parts.append(": ")
+        parts.append(str(error))
+    else:
+        parts.append(".")
+
+    # Spilt the error indication from a helper message (if any)
+    parts[-1] += "\n"
+
+    # Suggest useful actions to the user:
+    #  (1) using user site-packages or (2) verifying the permissions
+    if error.errno == errno.EACCES:
+        user_option_part = "Consider using the `--user` option"
+        permissions_part = "Check the permissions"
+
+        if not using_user_site:
+            parts.extend([
+                user_option_part, " or ",
+                permissions_part.lower(),
+            ])
+        else:
+            parts.append(permissions_part)
+        parts.append(".\n")
+
+    return "".join(parts).strip() + "\n"

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/list.py

@@ -0,0 +1,301 @@
+from __future__ import absolute_import
+
+import json
+import logging
+
+from pip._vendor import six
+from pip._vendor.six.moves import zip_longest
+
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import Command
+from pip._internal.exceptions import CommandError
+from pip._internal.index import PackageFinder
+from pip._internal.utils.misc import (
+    dist_is_editable, get_installed_distributions,
+)
+from pip._internal.utils.packaging import get_installer
+
+logger = logging.getLogger(__name__)
+
+
+class ListCommand(Command):
+    """
+    List installed packages, including editables.
+
+    Packages are listed in a case-insensitive sorted order.
+    """
+    name = 'list'
+    usage = """
+      %prog [options]"""
+    summary = 'List installed packages.'
+
+    def __init__(self, *args, **kw):
+        super(ListCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '-o', '--outdated',
+            action='store_true',
+            default=False,
+            help='List outdated packages')
+        cmd_opts.add_option(
+            '-u', '--uptodate',
+            action='store_true',
+            default=False,
+            help='List uptodate packages')
+        cmd_opts.add_option(
+            '-e', '--editable',
+            action='store_true',
+            default=False,
+            help='List editable projects.')
+        cmd_opts.add_option(
+            '-l', '--local',
+            action='store_true',
+            default=False,
+            help=('If in a virtualenv that has global access, do not list '
+                  'globally-installed packages.'),
+        )
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user',
+            action='store_true',
+            default=False,
+            help='Only output packages installed in user-site.')
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help=("Include pre-release and development versions. By default, "
+                  "pip only finds stable versions."),
+        )
+
+        cmd_opts.add_option(
+            '--format',
+            action='store',
+            dest='list_format',
+            default="columns",
+            choices=('columns', 'freeze', 'json'),
+            help="Select the output format among: columns (default), freeze, "
+                 "or json",
+        )
+
+        cmd_opts.add_option(
+            '--not-required',
+            action='store_true',
+            dest='not_required',
+            help="List packages that are not dependencies of "
+                 "installed packages.",
+        )
+
+        cmd_opts.add_option(
+            '--exclude-editable',
+            action='store_false',
+            dest='include_editable',
+            help='Exclude editable package from output.',
+        )
+        cmd_opts.add_option(
+            '--include-editable',
+            action='store_true',
+            dest='include_editable',
+            help='Include editable package from output.',
+            default=True,
+        )
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group, self.parser
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def _build_package_finder(self, options, index_urls, session):
+        """
+        Create a package finder appropriate to this list command.
+        """
+        return PackageFinder(
+            find_links=options.find_links,
+            index_urls=index_urls,
+            allow_all_prereleases=options.pre,
+            trusted_hosts=options.trusted_hosts,
+            session=session,
+        )
+
+    def run(self, options, args):
+        if options.outdated and options.uptodate:
+            raise CommandError(
+                "Options --outdated and --uptodate cannot be combined.")
+
+        packages = get_installed_distributions(
+            local_only=options.local,
+            user_only=options.user,
+            editables_only=options.editable,
+            include_editables=options.include_editable,
+        )
+
+        # get_not_required must be called firstly in order to find and
+        # filter out all dependencies correctly. Otherwise a package
+        # can't be identified as requirement because some parent packages
+        # could be filtered out before.
+        if options.not_required:
+            packages = self.get_not_required(packages, options)
+
+        if options.outdated:
+            packages = self.get_outdated(packages, options)
+        elif options.uptodate:
+            packages = self.get_uptodate(packages, options)
+
+        self.output_package_listing(packages, options)
+
+    def get_outdated(self, packages, options):
+        return [
+            dist for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version > dist.parsed_version
+        ]
+
+    def get_uptodate(self, packages, options):
+        return [
+            dist for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version == dist.parsed_version
+        ]
+
+    def get_not_required(self, packages, options):
+        dep_keys = set()
+        for dist in packages:
+            dep_keys.update(requirement.key for requirement in dist.requires())
+        return {pkg for pkg in packages if pkg.key not in dep_keys}
+
+    def iter_packages_latest_infos(self, packages, options):
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, index_urls, session)
+
+            for dist in packages:
+                typ = 'unknown'
+                all_candidates = finder.find_all_candidates(dist.key)
+                if not options.pre:
+                    # Remove prereleases
+                    all_candidates = [candidate for candidate in all_candidates
+                                      if not candidate.version.is_prerelease]
+
+                if not all_candidates:
+                    continue
+                best_candidate = max(all_candidates,
+                                     key=finder._candidate_sort_key)
+                remote_version = best_candidate.version
+                if best_candidate.location.is_wheel:
+                    typ = 'wheel'
+                else:
+                    typ = 'sdist'
+                # This is dirty but makes the rest of the code much cleaner
+                dist.latest_version = remote_version
+                dist.latest_filetype = typ
+                yield dist
+
+    def output_package_listing(self, packages, options):
+        packages = sorted(
+            packages,
+            key=lambda dist: dist.project_name.lower(),
+        )
+        if options.list_format == 'columns' and packages:
+            data, header = format_for_columns(packages, options)
+            self.output_package_listing_columns(data, header)
+        elif options.list_format == 'freeze':
+            for dist in packages:
+                if options.verbose >= 1:
+                    logger.info("%s==%s (%s)", dist.project_name,
+                                dist.version, dist.location)
+                else:
+                    logger.info("%s==%s", dist.project_name, dist.version)
+        elif options.list_format == 'json':
+            logger.info(format_for_json(packages, options))
+
+    def output_package_listing_columns(self, data, header):
+        # insert the header first: we need to know the size of column names
+        if len(data) > 0:
+            data.insert(0, header)
+
+        pkg_strings, sizes = tabulate(data)
+
+        # Create and add a separator.
+        if len(data) > 0:
+            pkg_strings.insert(1, " ".join(map(lambda x: '-' * x, sizes)))
+
+        for val in pkg_strings:
+            logger.info(val)
+
+
+def tabulate(vals):
+    # From pfmoore on GitHub:
+    # https://github.com/pypa/pip/issues/3651#issuecomment-216932564
+    assert len(vals) > 0
+
+    sizes = [0] * max(len(x) for x in vals)
+    for row in vals:
+        sizes = [max(s, len(str(c))) for s, c in zip_longest(sizes, row)]
+
+    result = []
+    for row in vals:
+        display = " ".join([str(c).ljust(s) if c is not None else ''
+                            for s, c in zip_longest(sizes, row)])
+        result.append(display)
+
+    return result, sizes
+
+
+def format_for_columns(pkgs, options):
+    """
+    Convert the package data into something usable
+    by output_package_listing_columns.
+    """
+    running_outdated = options.outdated
+    # Adjust the header for the `pip list --outdated` case.
+    if running_outdated:
+        header = ["Package", "Version", "Latest", "Type"]
+    else:
+        header = ["Package", "Version"]
+
+    data = []
+    if options.verbose >= 1 or any(dist_is_editable(x) for x in pkgs):
+        header.append("Location")
+    if options.verbose >= 1:
+        header.append("Installer")
+
+    for proj in pkgs:
+        # if we're working on the 'outdated' list, separate out the
+        # latest_version and type
+        row = [proj.project_name, proj.version]
+
+        if running_outdated:
+            row.append(proj.latest_version)
+            row.append(proj.latest_filetype)
+
+        if options.verbose >= 1 or dist_is_editable(proj):
+            row.append(proj.location)
+        if options.verbose >= 1:
+            row.append(get_installer(proj))
+
+        data.append(row)
+
+    return data, header
+
+
+def format_for_json(packages, options):
+    data = []
+    for dist in packages:
+        info = {
+            'name': dist.project_name,
+            'version': six.text_type(dist.version),
+        }
+        if options.verbose >= 1:
+            info['location'] = dist.location
+            info['installer'] = get_installer(dist)
+        if options.outdated:
+            info['latest_version'] = six.text_type(dist.latest_version)
+            info['latest_filetype'] = dist.latest_filetype
+        data.append(info)
+    return json.dumps(data)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/search.py

@@ -0,0 +1,135 @@
+from __future__ import absolute_import
+
+import logging
+import sys
+import textwrap
+from collections import OrderedDict
+
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.version import parse as parse_version
+# NOTE: XMLRPC Client is not annotated in typeshed as on 2017-07-17, which is
+#       why we ignore the type on this import
+from pip._vendor.six.moves import xmlrpc_client  # type: ignore
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import NO_MATCHES_FOUND, SUCCESS
+from pip._internal.download import PipXmlrpcTransport
+from pip._internal.exceptions import CommandError
+from pip._internal.models.index import PyPI
+from pip._internal.utils.compat import get_terminal_size
+from pip._internal.utils.logging import indent_log
+
+logger = logging.getLogger(__name__)
+
+
+class SearchCommand(Command):
+    """Search for PyPI packages whose name or summary contains <query>."""
+    name = 'search'
+    usage = """
+      %prog [options] <query>"""
+    summary = 'Search PyPI for packages.'
+    ignore_require_venv = True
+
+    def __init__(self, *args, **kw):
+        super(SearchCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-i', '--index',
+            dest='index',
+            metavar='URL',
+            default=PyPI.pypi_url,
+            help='Base URL of Python Package Index (default %default)')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            raise CommandError('Missing required argument (search query).')
+        query = args
+        pypi_hits = self.search(query, options)
+        hits = transform_hits(pypi_hits)
+
+        terminal_width = None
+        if sys.stdout.isatty():
+            terminal_width = get_terminal_size()[0]
+
+        print_results(hits, terminal_width=terminal_width)
+        if pypi_hits:
+            return SUCCESS
+        return NO_MATCHES_FOUND
+
+    def search(self, query, options):
+        index_url = options.index
+        with self._build_session(options) as session:
+            transport = PipXmlrpcTransport(index_url, session)
+            pypi = xmlrpc_client.ServerProxy(index_url, transport)
+            hits = pypi.search({'name': query, 'summary': query}, 'or')
+            return hits
+
+
+def transform_hits(hits):
+    """
+    The list from pypi is really a list of versions. We want a list of
+    packages with the list of versions stored inline. This converts the
+    list from pypi into one we can use.
+    """
+    packages = OrderedDict()
+    for hit in hits:
+        name = hit['name']
+        summary = hit['summary']
+        version = hit['version']
+
+        if name not in packages.keys():
+            packages[name] = {
+                'name': name,
+                'summary': summary,
+                'versions': [version],
+            }
+        else:
+            packages[name]['versions'].append(version)
+
+            # if this is the highest version, replace summary and score
+            if version == highest_version(packages[name]['versions']):
+                packages[name]['summary'] = summary
+
+    return list(packages.values())
+
+
+def print_results(hits, name_column_width=None, terminal_width=None):
+    if not hits:
+        return
+    if name_column_width is None:
+        name_column_width = max([
+            len(hit['name']) + len(highest_version(hit.get('versions', ['-'])))
+            for hit in hits
+        ]) + 4
+
+    installed_packages = [p.project_name for p in pkg_resources.working_set]
+    for hit in hits:
+        name = hit['name']
+        summary = hit['summary'] or ''
+        latest = highest_version(hit.get('versions', ['-']))
+        if terminal_width is not None:
+            target_width = terminal_width - name_column_width - 5
+            if target_width > 10:
+                # wrap and indent summary to fit terminal
+                summary = textwrap.wrap(summary, target_width)
+                summary = ('\n' + ' ' * (name_column_width + 3)).join(summary)
+
+        line = '%-*s - %s' % (name_column_width,
+                              '%s (%s)' % (name, latest), summary)
+        try:
+            logger.info(line)
+            if name in installed_packages:
+                dist = pkg_resources.get_distribution(name)
+                with indent_log():
+                    if dist.version == latest:
+                        logger.info('INSTALLED: %s (latest)', dist.version)
+                    else:
+                        logger.info('INSTALLED: %s', dist.version)
+                        logger.info('LATEST:    %s', latest)
+        except UnicodeEncodeError:
+            pass
+
+
+def highest_version(versions):
+    return max(versions, key=parse_version)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/show.py

@@ -0,0 +1,168 @@
+from __future__ import absolute_import
+
+import logging
+import os
+from email.parser import FeedParser  # type: ignore
+
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cli.base_command import Command
+from pip._internal.cli.status_codes import ERROR, SUCCESS
+
+logger = logging.getLogger(__name__)
+
+
+class ShowCommand(Command):
+    """
+    Show information about one or more installed packages.
+
+    The output is in RFC-compliant mail header format.
+    """
+    name = 'show'
+    usage = """
+      %prog [options] <package> ..."""
+    summary = 'Show information about installed packages.'
+    ignore_require_venv = True
+
+    def __init__(self, *args, **kw):
+        super(ShowCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-f', '--files',
+            dest='files',
+            action='store_true',
+            default=False,
+            help='Show the full list of installed files for each package.')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            logger.warning('ERROR: Please provide a package name or names.')
+            return ERROR
+        query = args
+
+        results = search_packages_info(query)
+        if not print_results(
+                results, list_files=options.files, verbose=options.verbose):
+            return ERROR
+        return SUCCESS
+
+
+def search_packages_info(query):
+    """
+    Gather details from installed distributions. Print distribution name,
+    version, location, and installed files. Installed files requires a
+    pip generated 'installed-files.txt' in the distributions '.egg-info'
+    directory.
+    """
+    installed = {}
+    for p in pkg_resources.working_set:
+        installed[canonicalize_name(p.project_name)] = p
+
+    query_names = [canonicalize_name(name) for name in query]
+
+    for dist in [installed[pkg] for pkg in query_names if pkg in installed]:
+        package = {
+            'name': dist.project_name,
+            'version': dist.version,
+            'location': dist.location,
+            'requires': [dep.project_name for dep in dist.requires()],
+        }
+        file_list = None
+        metadata = None
+        if isinstance(dist, pkg_resources.DistInfoDistribution):
+            # RECORDs should be part of .dist-info metadatas
+            if dist.has_metadata('RECORD'):
+                lines = dist.get_metadata_lines('RECORD')
+                paths = [l.split(',')[0] for l in lines]
+                paths = [os.path.join(dist.location, p) for p in paths]
+                file_list = [os.path.relpath(p, dist.location) for p in paths]
+
+            if dist.has_metadata('METADATA'):
+                metadata = dist.get_metadata('METADATA')
+        else:
+            # Otherwise use pip's log for .egg-info's
+            if dist.has_metadata('installed-files.txt'):
+                paths = dist.get_metadata_lines('installed-files.txt')
+                paths = [os.path.join(dist.egg_info, p) for p in paths]
+                file_list = [os.path.relpath(p, dist.location) for p in paths]
+
+            if dist.has_metadata('PKG-INFO'):
+                metadata = dist.get_metadata('PKG-INFO')
+
+        if dist.has_metadata('entry_points.txt'):
+            entry_points = dist.get_metadata_lines('entry_points.txt')
+            package['entry_points'] = entry_points
+
+        if dist.has_metadata('INSTALLER'):
+            for line in dist.get_metadata_lines('INSTALLER'):
+                if line.strip():
+                    package['installer'] = line.strip()
+                    break
+
+        # @todo: Should pkg_resources.Distribution have a
+        # `get_pkg_info` method?
+        feed_parser = FeedParser()
+        feed_parser.feed(metadata)
+        pkg_info_dict = feed_parser.close()
+        for key in ('metadata-version', 'summary',
+                    'home-page', 'author', 'author-email', 'license'):
+            package[key] = pkg_info_dict.get(key)
+
+        # It looks like FeedParser cannot deal with repeated headers
+        classifiers = []
+        for line in metadata.splitlines():
+            if line.startswith('Classifier: '):
+                classifiers.append(line[len('Classifier: '):])
+        package['classifiers'] = classifiers
+
+        if file_list:
+            package['files'] = sorted(file_list)
+        yield package
+
+
+def print_results(distributions, list_files=False, verbose=False):
+    """
+    Print the informations from installed distributions found.
+    """
+    results_printed = False
+    for i, dist in enumerate(distributions):
+        results_printed = True
+        if i > 0:
+            logger.info("---")
+
+        name = dist.get('name', '')
+        required_by = [
+            pkg.project_name for pkg in pkg_resources.working_set
+            if name in [required.name for required in pkg.requires()]
+        ]
+
+        logger.info("Name: %s", name)
+        logger.info("Version: %s", dist.get('version', ''))
+        logger.info("Summary: %s", dist.get('summary', ''))
+        logger.info("Home-page: %s", dist.get('home-page', ''))
+        logger.info("Author: %s", dist.get('author', ''))
+        logger.info("Author-email: %s", dist.get('author-email', ''))
+        logger.info("License: %s", dist.get('license', ''))
+        logger.info("Location: %s", dist.get('location', ''))
+        logger.info("Requires: %s", ', '.join(dist.get('requires', [])))
+        logger.info("Required-by: %s", ', '.join(required_by))
+
+        if verbose:
+            logger.info("Metadata-Version: %s",
+                        dist.get('metadata-version', ''))
+            logger.info("Installer: %s", dist.get('installer', ''))
+            logger.info("Classifiers:")
+            for classifier in dist.get('classifiers', []):
+                logger.info("  %s", classifier)
+            logger.info("Entry-points:")
+            for entry in dist.get('entry_points', []):
+                logger.info("  %s", entry.strip())
+        if list_files:
+            logger.info("Files:")
+            for line in dist.get('files', []):
+                logger.info("  %s", line.strip())
+            if "files" not in dist:
+                logger.info("Cannot locate installed-files.txt")
+    return results_printed

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/uninstall.py

@@ -0,0 +1,78 @@
+from __future__ import absolute_import
+
+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.cli.base_command import Command
+from pip._internal.exceptions import InstallationError
+from pip._internal.req import parse_requirements
+from pip._internal.req.constructors import install_req_from_line
+from pip._internal.utils.misc import protect_pip_from_modification_on_windows
+
+
+class UninstallCommand(Command):
+    """
+    Uninstall packages.
+
+    pip is able to uninstall most installed packages. Known exceptions are:
+
+    - Pure distutils packages installed with ``python setup.py install``, which
+      leave behind no metadata to determine what files were installed.
+    - Script wrappers installed by ``python setup.py develop``.
+    """
+    name = 'uninstall'
+    usage = """
+      %prog [options] <package> ...
+      %prog [options] -r <requirements file> ..."""
+    summary = 'Uninstall packages.'
+
+    def __init__(self, *args, **kw):
+        super(UninstallCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-r', '--requirement',
+            dest='requirements',
+            action='append',
+            default=[],
+            metavar='file',
+            help='Uninstall all the packages listed in the given requirements '
+                 'file.  This option can be used multiple times.',
+        )
+        self.cmd_opts.add_option(
+            '-y', '--yes',
+            dest='yes',
+            action='store_true',
+            help="Don't ask for confirmation of uninstall deletions.")
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        with self._build_session(options) as session:
+            reqs_to_uninstall = {}
+            for name in args:
+                req = install_req_from_line(
+                    name, isolated=options.isolated_mode,
+                )
+                if req.name:
+                    reqs_to_uninstall[canonicalize_name(req.name)] = req
+            for filename in options.requirements:
+                for req in parse_requirements(
+                        filename,
+                        options=options,
+                        session=session):
+                    if req.name:
+                        reqs_to_uninstall[canonicalize_name(req.name)] = req
+            if not reqs_to_uninstall:
+                raise InstallationError(
+                    'You must give at least one requirement to %(name)s (see '
+                    '"pip help %(name)s")' % dict(name=self.name)
+                )
+
+            protect_pip_from_modification_on_windows(
+                modifying_pip="pip" in reqs_to_uninstall
+            )
+
+            for req in reqs_to_uninstall.values():
+                uninstall_pathset = req.uninstall(
+                    auto_confirm=options.yes, verbose=self.verbosity > 0,
+                )
+                if uninstall_pathset:
+                    uninstall_pathset.commit()

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/commands/wheel.py

@@ -0,0 +1,186 @@
+# -*- coding: utf-8 -*-
+from __future__ import absolute_import
+
+import logging
+import os
+
+from pip._internal.cache import WheelCache
+from pip._internal.cli import cmdoptions
+from pip._internal.cli.base_command import RequirementCommand
+from pip._internal.exceptions import CommandError, PreviousBuildDirError
+from pip._internal.operations.prepare import RequirementPreparer
+from pip._internal.req import RequirementSet
+from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.resolve import Resolver
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.wheel import WheelBuilder
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCommand(RequirementCommand):
+    """
+    Build Wheel archives for your requirements and dependencies.
+
+    Wheel is a built-package format, and offers the advantage of not
+    recompiling your software during every install. For more details, see the
+    wheel docs: https://wheel.readthedocs.io/en/latest/
+
+    Requirements: setuptools>=0.8, and wheel.
+
+    'pip wheel' uses the bdist_wheel setuptools extension from the wheel
+    package to build individual wheels.
+
+    """
+
+    name = 'wheel'
+    usage = """
+      %prog [options] <requirement specifier> ...
+      %prog [options] -r <requirements file> ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Build wheels from your requirements.'
+
+    def __init__(self, *args, **kw):
+        super(WheelCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '-w', '--wheel-dir',
+            dest='wheel_dir',
+            metavar='dir',
+            default=os.curdir,
+            help=("Build wheels into <dir>, where the default is the "
+                  "current working directory."),
+        )
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.prefer_binary())
+        cmd_opts.add_option(
+            '--build-option',
+            dest='build_options',
+            metavar='options',
+            action='append',
+            help="Extra arguments to be supplied to 'setup.py bdist_wheel'.",
+        )
+        cmd_opts.add_option(cmdoptions.no_build_isolation())
+        cmd_opts.add_option(cmdoptions.use_pep517())
+        cmd_opts.add_option(cmdoptions.no_use_pep517())
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.src())
+        cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.build_dir())
+        cmd_opts.add_option(cmdoptions.progress_bar())
+
+        cmd_opts.add_option(
+            '--global-option',
+            dest='global_options',
+            action='append',
+            metavar='options',
+            help="Extra global options to be supplied to the setup.py "
+            "call before the 'bdist_wheel' command.")
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help=("Include pre-release and development versions. By default, "
+                  "pip only finds stable versions."),
+        )
+
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        cmdoptions.check_install_build_global(options)
+
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, session)
+            build_delete = (not (options.no_clean or options.build_dir))
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+
+            with RequirementTracker() as req_tracker, TempDirectory(
+                options.build_dir, delete=build_delete, kind="wheel"
+            ) as directory:
+
+                requirement_set = RequirementSet(
+                    require_hashes=options.require_hashes,
+                )
+
+                try:
+                    self.populate_requirement_set(
+                        requirement_set, args, options, finder, session,
+                        self.name, wheel_cache
+                    )
+
+                    preparer = RequirementPreparer(
+                        build_dir=directory.path,
+                        src_dir=options.src_dir,
+                        download_dir=None,
+                        wheel_download_dir=options.wheel_dir,
+                        progress_bar=options.progress_bar,
+                        build_isolation=options.build_isolation,
+                        req_tracker=req_tracker,
+                    )
+
+                    resolver = Resolver(
+                        preparer=preparer,
+                        finder=finder,
+                        session=session,
+                        wheel_cache=wheel_cache,
+                        use_user_site=False,
+                        upgrade_strategy="to-satisfy-only",
+                        force_reinstall=False,
+                        ignore_dependencies=options.ignore_dependencies,
+                        ignore_requires_python=options.ignore_requires_python,
+                        ignore_installed=True,
+                        isolated=options.isolated_mode,
+                        use_pep517=options.use_pep517
+                    )
+                    resolver.resolve(requirement_set)
+
+                    # build wheels
+                    wb = WheelBuilder(
+                        finder, preparer, wheel_cache,
+                        build_options=options.build_options or [],
+                        global_options=options.global_options or [],
+                        no_clean=options.no_clean,
+                    )
+                    build_failures = wb.build(
+                        requirement_set.requirements.values(), session=session,
+                    )
+                    if len(build_failures) != 0:
+                        raise CommandError(
+                            "Failed to build one or more wheels"
+                        )
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    if not options.no_clean:
+                        requirement_set.cleanup_files()
+                        wheel_cache.cleanup()

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/configuration.py

@@ -0,0 +1,387 @@
+"""Configuration management setup
+
+Some terminology:
+- name
+  As written in config files.
+- value
+  Value associated with a name
+- key
+  Name combined with it's section (section.name)
+- variant
+  A single word describing where the configuration key-value pair came from
+"""
+
+import locale
+import logging
+import os
+
+from pip._vendor import six
+from pip._vendor.six.moves import configparser
+
+from pip._internal.exceptions import (
+    ConfigurationError, ConfigurationFileCouldNotBeLoaded,
+)
+from pip._internal.locations import (
+    legacy_config_file, new_config_file, running_under_virtualenv,
+    site_config_files, venv_config_file,
+)
+from pip._internal.utils.misc import ensure_dir, enum
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import (  # noqa: F401
+        Any, Dict, Iterable, List, NewType, Optional, Tuple
+    )
+
+    RawConfigParser = configparser.RawConfigParser  # Shorthand
+    Kind = NewType("Kind", str)
+
+logger = logging.getLogger(__name__)
+
+
+# NOTE: Maybe use the optionx attribute to normalize keynames.
+def _normalize_name(name):
+    # type: (str) -> str
+    """Make a name consistent regardless of source (environment or file)
+    """
+    name = name.lower().replace('_', '-')
+    if name.startswith('--'):
+        name = name[2:]  # only prefer long opts
+    return name
+
+
+def _disassemble_key(name):
+    # type: (str) -> List[str]
+    return name.split(".", 1)
+
+
+# The kinds of configurations there are.
+kinds = enum(
+    USER="user",        # User Specific
+    GLOBAL="global",    # System Wide
+    VENV="venv",        # Virtual Environment Specific
+    ENV="env",          # from PIP_CONFIG_FILE
+    ENV_VAR="env-var",  # from Environment Variables
+)
+
+
+class Configuration(object):
+    """Handles management of configuration.
+
+    Provides an interface to accessing and managing configuration files.
+
+    This class converts provides an API that takes "section.key-name" style
+    keys and stores the value associated with it as "key-name" under the
+    section "section".
+
+    This allows for a clean interface wherein the both the section and the
+    key-name are preserved in an easy to manage form in the configuration files
+    and the data stored is also nice.
+    """
+
+    def __init__(self, isolated, load_only=None):
+        # type: (bool, Kind) -> None
+        super(Configuration, self).__init__()
+
+        _valid_load_only = [kinds.USER, kinds.GLOBAL, kinds.VENV, None]
+        if load_only not in _valid_load_only:
+            raise ConfigurationError(
+                "Got invalid value for load_only - should be one of {}".format(
+                    ", ".join(map(repr, _valid_load_only[:-1]))
+                )
+            )
+        self.isolated = isolated  # type: bool
+        self.load_only = load_only  # type: Optional[Kind]
+
+        # The order here determines the override order.
+        self._override_order = [
+            kinds.GLOBAL, kinds.USER, kinds.VENV, kinds.ENV, kinds.ENV_VAR
+        ]
+
+        self._ignore_env_names = ["version", "help"]
+
+        # Because we keep track of where we got the data from
+        self._parsers = {
+            variant: [] for variant in self._override_order
+        }  # type: Dict[Kind, List[Tuple[str, RawConfigParser]]]
+        self._config = {
+            variant: {} for variant in self._override_order
+        }  # type: Dict[Kind, Dict[str, Any]]
+        self._modified_parsers = []  # type: List[Tuple[str, RawConfigParser]]
+
+    def load(self):
+        # type: () -> None
+        """Loads configuration from configuration files and environment
+        """
+        self._load_config_files()
+        if not self.isolated:
+            self._load_environment_vars()
+
+    def get_file_to_edit(self):
+        # type: () -> Optional[str]
+        """Returns the file with highest priority in configuration
+        """
+        assert self.load_only is not None, \
+            "Need to be specified a file to be editing"
+
+        try:
+            return self._get_parser_to_modify()[0]
+        except IndexError:
+            return None
+
+    def items(self):
+        # type: () -> Iterable[Tuple[str, Any]]
+        """Returns key-value pairs like dict.items() representing the loaded
+        configuration
+        """
+        return self._dictionary.items()
+
+    def get_value(self, key):
+        # type: (str) -> Any
+        """Get a value from the configuration.
+        """
+        try:
+            return self._dictionary[key]
+        except KeyError:
+            raise ConfigurationError("No such key - {}".format(key))
+
+    def set_value(self, key, value):
+        # type: (str, Any) -> None
+        """Modify a value in the configuration.
+        """
+        self._ensure_have_load_only()
+
+        fname, parser = self._get_parser_to_modify()
+
+        if parser is not None:
+            section, name = _disassemble_key(key)
+
+            # Modify the parser and the configuration
+            if not parser.has_section(section):
+                parser.add_section(section)
+            parser.set(section, name, value)
+
+        self._config[self.load_only][key] = value
+        self._mark_as_modified(fname, parser)
+
+    def unset_value(self, key):
+        # type: (str) -> None
+        """Unset a value in the configuration.
+        """
+        self._ensure_have_load_only()
+
+        if key not in self._config[self.load_only]:
+            raise ConfigurationError("No such key - {}".format(key))
+
+        fname, parser = self._get_parser_to_modify()
+
+        if parser is not None:
+            section, name = _disassemble_key(key)
+
+            # Remove the key in the parser
+            modified_something = False
+            if parser.has_section(section):
+                # Returns whether the option was removed or not
+                modified_something = parser.remove_option(section, name)
+
+            if modified_something:
+                # name removed from parser, section may now be empty
+                section_iter = iter(parser.items(section))
+                try:
+                    val = six.next(section_iter)
+                except StopIteration:
+                    val = None
+
+                if val is None:
+                    parser.remove_section(section)
+
+                self._mark_as_modified(fname, parser)
+            else:
+                raise ConfigurationError(
+                    "Fatal Internal error [id=1]. Please report as a bug."
+                )
+
+        del self._config[self.load_only][key]
+
+    def save(self):
+        # type: () -> None
+        """Save the currentin-memory state.
+        """
+        self._ensure_have_load_only()
+
+        for fname, parser in self._modified_parsers:
+            logger.info("Writing to %s", fname)
+
+            # Ensure directory exists.
+            ensure_dir(os.path.dirname(fname))
+
+            with open(fname, "w") as f:
+                parser.write(f)  # type: ignore
+
+    #
+    # Private routines
+    #
+
+    def _ensure_have_load_only(self):
+        # type: () -> None
+        if self.load_only is None:
+            raise ConfigurationError("Needed a specific file to be modifying.")
+        logger.debug("Will be working with %s variant only", self.load_only)
+
+    @property
+    def _dictionary(self):
+        # type: () -> Dict[str, Any]
+        """A dictionary representing the loaded configuration.
+        """
+        # NOTE: Dictionaries are not populated if not loaded. So, conditionals
+        #       are not needed here.
+        retval = {}
+
+        for variant in self._override_order:
+            retval.update(self._config[variant])
+
+        return retval
+
+    def _load_config_files(self):
+        # type: () -> None
+        """Loads configuration from configuration files
+        """
+        config_files = dict(self._iter_config_files())
+        if config_files[kinds.ENV][0:1] == [os.devnull]:
+            logger.debug(
+                "Skipping loading configuration files due to "
+                "environment's PIP_CONFIG_FILE being os.devnull"
+            )
+            return
+
+        for variant, files in config_files.items():
+            for fname in files:
+                # If there's specific variant set in `load_only`, load only
+                # that variant, not the others.
+                if self.load_only is not None and variant != self.load_only:
+                    logger.debug(
+                        "Skipping file '%s' (variant: %s)", fname, variant
+                    )
+                    continue
+
+                parser = self._load_file(variant, fname)
+
+                # Keeping track of the parsers used
+                self._parsers[variant].append((fname, parser))
+
+    def _load_file(self, variant, fname):
+        # type: (Kind, str) -> RawConfigParser
+        logger.debug("For variant '%s', will try loading '%s'", variant, fname)
+        parser = self._construct_parser(fname)
+
+        for section in parser.sections():
+            items = parser.items(section)
+            self._config[variant].update(self._normalized_keys(section, items))
+
+        return parser
+
+    def _construct_parser(self, fname):
+        # type: (str) -> RawConfigParser
+        parser = configparser.RawConfigParser()
+        # If there is no such file, don't bother reading it but create the
+        # parser anyway, to hold the data.
+        # Doing this is useful when modifying and saving files, where we don't
+        # need to construct a parser.
+        if os.path.exists(fname):
+            try:
+                parser.read(fname)
+            except UnicodeDecodeError:
+                # See https://github.com/pypa/pip/issues/4963
+                raise ConfigurationFileCouldNotBeLoaded(
+                    reason="contains invalid {} characters".format(
+                        locale.getpreferredencoding(False)
+                    ),
+                    fname=fname,
+                )
+            except configparser.Error as error:
+                # See https://github.com/pypa/pip/issues/4893
+                raise ConfigurationFileCouldNotBeLoaded(error=error)
+        return parser
+
+    def _load_environment_vars(self):
+        # type: () -> None
+        """Loads configuration from environment variables
+        """
+        self._config[kinds.ENV_VAR].update(
+            self._normalized_keys(":env:", self._get_environ_vars())
+        )
+
+    def _normalized_keys(self, section, items):
+        # type: (str, Iterable[Tuple[str, Any]]) -> Dict[str, Any]
+        """Normalizes items to construct a dictionary with normalized keys.
+
+        This routine is where the names become keys and are made the same
+        regardless of source - configuration files or environment.
+        """
+        normalized = {}
+        for name, val in items:
+            key = section + "." + _normalize_name(name)
+            normalized[key] = val
+        return normalized
+
+    def _get_environ_vars(self):
+        # type: () -> Iterable[Tuple[str, str]]
+        """Returns a generator with all environmental vars with prefix PIP_"""
+        for key, val in os.environ.items():
+            should_be_yielded = (
+                key.startswith("PIP_") and
+                key[4:].lower() not in self._ignore_env_names
+            )
+            if should_be_yielded:
+                yield key[4:].lower(), val
+
+    # XXX: This is patched in the tests.
+    def _iter_config_files(self):
+        # type: () -> Iterable[Tuple[Kind, List[str]]]
+        """Yields variant and configuration files associated with it.
+
+        This should be treated like items of a dictionary.
+        """
+        # SMELL: Move the conditions out of this function
+
+        # environment variables have the lowest priority
+        config_file = os.environ.get('PIP_CONFIG_FILE', None)
+        if config_file is not None:
+            yield kinds.ENV, [config_file]
+        else:
+            yield kinds.ENV, []
+
+        # at the base we have any global configuration
+        yield kinds.GLOBAL, list(site_config_files)
+
+        # per-user configuration next
+        should_load_user_config = not self.isolated and not (
+            config_file and os.path.exists(config_file)
+        )
+        if should_load_user_config:
+            # The legacy config file is overridden by the new config file
+            yield kinds.USER, [legacy_config_file, new_config_file]
+
+        # finally virtualenv configuration first trumping others
+        if running_under_virtualenv():
+            yield kinds.VENV, [venv_config_file]
+
+    def _get_parser_to_modify(self):
+        # type: () -> Tuple[str, RawConfigParser]
+        # Determine which parser to modify
+        parsers = self._parsers[self.load_only]
+        if not parsers:
+            # This should not happen if everything works correctly.
+            raise ConfigurationError(
+                "Fatal Internal error [id=2]. Please report as a bug."
+            )
+
+        # Use the highest priority parser.
+        return parsers[-1]
+
+    # XXX: This is patched in the tests.
+    def _mark_as_modified(self, fname, parser):
+        # type: (str, RawConfigParser) -> None
+        file_parser_tuple = (fname, parser)
+        if file_parser_tuple not in self._modified_parsers:
+            self._modified_parsers.append(file_parser_tuple)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/download.py

@@ -0,0 +1,971 @@
+from __future__ import absolute_import
+
+import cgi
+import email.utils
+import getpass
+import json
+import logging
+import mimetypes
+import os
+import platform
+import re
+import shutil
+import sys
+
+from pip._vendor import requests, six, urllib3
+from pip._vendor.cachecontrol import CacheControlAdapter
+from pip._vendor.cachecontrol.caches import FileCache
+from pip._vendor.lockfile import LockError
+from pip._vendor.requests.adapters import BaseAdapter, HTTPAdapter
+from pip._vendor.requests.auth import AuthBase, HTTPBasicAuth
+from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
+from pip._vendor.requests.structures import CaseInsensitiveDict
+from pip._vendor.requests.utils import get_netrc_auth
+# NOTE: XMLRPC Client is not annotated in typeshed as on 2017-07-17, which is
+#       why we ignore the type on this import
+from pip._vendor.six.moves import xmlrpc_client  # type: ignore
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+from pip._vendor.urllib3.util import IS_PYOPENSSL
+
+import pip
+from pip._internal.exceptions import HashMismatch, InstallationError
+from pip._internal.locations import write_delete_marker_file
+from pip._internal.models.index import PyPI
+from pip._internal.utils.encoding import auto_decode
+from pip._internal.utils.filesystem import check_path_owner
+from pip._internal.utils.glibc import libc_ver
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import (
+    ARCHIVE_EXTENSIONS, ask_path_exists, backup_dir, call_subprocess, consume,
+    display_path, format_size, get_installed_version, rmtree,
+    split_auth_from_netloc, splitext, unpack_file,
+)
+from pip._internal.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip._internal.utils.temp_dir import TempDirectory
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+from pip._internal.utils.ui import DownloadProgressProvider
+from pip._internal.vcs import vcs
+
+if MYPY_CHECK_RUNNING:
+    from typing import (  # noqa: F401
+        Optional, Tuple, Dict, IO, Text, Union
+    )
+    from pip._internal.models.link import Link  # noqa: F401
+    from pip._internal.utils.hashes import Hashes  # noqa: F401
+    from pip._internal.vcs import AuthInfo  # noqa: F401
+
+try:
+    import ssl  # noqa
+except ImportError:
+    ssl = None
+
+HAS_TLS = (ssl is not None) or IS_PYOPENSSL
+
+__all__ = ['get_file_content',
+           'is_url', 'url_to_path', 'path_to_url',
+           'is_archive_file', 'unpack_vcs_link',
+           'unpack_file_url', 'is_vcs_url', 'is_file_url',
+           'unpack_http_url', 'unpack_url']
+
+
+logger = logging.getLogger(__name__)
+
+
+def user_agent():
+    """
+    Return a string representing the user agent.
+    """
+    data = {
+        "installer": {"name": "pip", "version": pip.__version__},
+        "python": platform.python_version(),
+        "implementation": {
+            "name": platform.python_implementation(),
+        },
+    }
+
+    if data["implementation"]["name"] == 'CPython':
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == 'PyPy':
+        if sys.pypy_version_info.releaselevel == 'final':
+            pypy_version_info = sys.pypy_version_info[:3]
+        else:
+            pypy_version_info = sys.pypy_version_info
+        data["implementation"]["version"] = ".".join(
+            [str(x) for x in pypy_version_info]
+        )
+    elif data["implementation"]["name"] == 'Jython':
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == 'IronPython':
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+
+    if sys.platform.startswith("linux"):
+        from pip._vendor import distro
+        distro_infos = dict(filter(
+            lambda x: x[1],
+            zip(["name", "version", "id"], distro.linux_distribution()),
+        ))
+        libc = dict(filter(
+            lambda x: x[1],
+            zip(["lib", "version"], libc_ver()),
+        ))
+        if libc:
+            distro_infos["libc"] = libc
+        if distro_infos:
+            data["distro"] = distro_infos
+
+    if sys.platform.startswith("darwin") and platform.mac_ver()[0]:
+        data["distro"] = {"name": "macOS", "version": platform.mac_ver()[0]}
+
+    if platform.system():
+        data.setdefault("system", {})["name"] = platform.system()
+
+    if platform.release():
+        data.setdefault("system", {})["release"] = platform.release()
+
+    if platform.machine():
+        data["cpu"] = platform.machine()
+
+    if HAS_TLS:
+        data["openssl_version"] = ssl.OPENSSL_VERSION
+
+    setuptools_version = get_installed_version("setuptools")
+    if setuptools_version is not None:
+        data["setuptools_version"] = setuptools_version
+
+    return "{data[installer][name]}/{data[installer][version]} {json}".format(
+        data=data,
+        json=json.dumps(data, separators=(",", ":"), sort_keys=True),
+    )
+
+
+class MultiDomainBasicAuth(AuthBase):
+
+    def __init__(self, prompting=True):
+        # type: (bool) -> None
+        self.prompting = prompting
+        self.passwords = {}  # type: Dict[str, AuthInfo]
+
+    def __call__(self, req):
+        parsed = urllib_parse.urlparse(req.url)
+
+        # Split the credentials from the netloc.
+        netloc, url_user_password = split_auth_from_netloc(parsed.netloc)
+
+        # Set the url of the request to the url without any credentials
+        req.url = urllib_parse.urlunparse(parsed[:1] + (netloc,) + parsed[2:])
+
+        # Use any stored credentials that we have for this netloc
+        username, password = self.passwords.get(netloc, (None, None))
+
+        # Use the credentials embedded in the url if we have none stored
+        if username is None:
+            username, password = url_user_password
+
+        # Get creds from netrc if we still don't have them
+        if username is None and password is None:
+            netrc_auth = get_netrc_auth(req.url)
+            username, password = netrc_auth if netrc_auth else (None, None)
+
+        if username or password:
+            # Store the username and password
+            self.passwords[netloc] = (username, password)
+
+            # Send the basic auth with this request
+            req = HTTPBasicAuth(username or "", password or "")(req)
+
+        # Attach a hook to handle 401 responses
+        req.register_hook("response", self.handle_401)
+
+        return req
+
+    def handle_401(self, resp, **kwargs):
+        # We only care about 401 responses, anything else we want to just
+        #   pass through the actual response
+        if resp.status_code != 401:
+            return resp
+
+        # We are not able to prompt the user so simply return the response
+        if not self.prompting:
+            return resp
+
+        parsed = urllib_parse.urlparse(resp.url)
+
+        # Prompt the user for a new username and password
+        username = six.moves.input("User for %s: " % parsed.netloc)
+        password = getpass.getpass("Password: ")
+
+        # Store the new username and password to use for future requests
+        if username or password:
+            self.passwords[parsed.netloc] = (username, password)
+
+        # Consume content and release the original connection to allow our new
+        #   request to reuse the same one.
+        resp.content
+        resp.raw.release_conn()
+
+        # Add our new username and password to the request
+        req = HTTPBasicAuth(username or "", password or "")(resp.request)
+        req.register_hook("response", self.warn_on_401)
+
+        # Send our new request
+        new_resp = resp.connection.send(req, **kwargs)
+        new_resp.history.append(resp)
+
+        return new_resp
+
+    def warn_on_401(self, resp, **kwargs):
+        # warn user that they provided incorrect credentials
+        if resp.status_code == 401:
+            logger.warning('401 Error, Credentials not correct for %s',
+                           resp.request.url)
+
+
+class LocalFSAdapter(BaseAdapter):
+
+    def send(self, request, stream=None, timeout=None, verify=None, cert=None,
+             proxies=None):
+        pathname = url_to_path(request.url)
+
+        resp = Response()
+        resp.status_code = 200
+        resp.url = request.url
+
+        try:
+            stats = os.stat(pathname)
+        except OSError as exc:
+            resp.status_code = 404
+            resp.raw = exc
+        else:
+            modified = email.utils.formatdate(stats.st_mtime, usegmt=True)
+            content_type = mimetypes.guess_type(pathname)[0] or "text/plain"
+            resp.headers = CaseInsensitiveDict({
+                "Content-Type": content_type,
+                "Content-Length": stats.st_size,
+                "Last-Modified": modified,
+            })
+
+            resp.raw = open(pathname, "rb")
+            resp.close = resp.raw.close
+
+        return resp
+
+    def close(self):
+        pass
+
+
+class SafeFileCache(FileCache):
+    """
+    A file based cache which is safe to use even when the target directory may
+    not be accessible or writable.
+    """
+
+    def __init__(self, *args, **kwargs):
+        super(SafeFileCache, self).__init__(*args, **kwargs)
+
+        # Check to ensure that the directory containing our cache directory
+        # is owned by the user current executing pip. If it does not exist
+        # we will check the parent directory until we find one that does exist.
+        # If it is not owned by the user executing pip then we will disable
+        # the cache and log a warning.
+        if not check_path_owner(self.directory):
+            logger.warning(
+                "The directory '%s' or its parent directory is not owned by "
+                "the current user and the cache has been disabled. Please "
+                "check the permissions and owner of that directory. If "
+                "executing pip with sudo, you may want sudo's -H flag.",
+                self.directory,
+            )
+
+            # Set our directory to None to disable the Cache
+            self.directory = None
+
+    def get(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).get(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+    def set(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).set(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+    def delete(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).delete(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+
+class InsecureHTTPAdapter(HTTPAdapter):
+
+    def cert_verify(self, conn, url, verify, cert):
+        conn.cert_reqs = 'CERT_NONE'
+        conn.ca_certs = None
+
+
+class PipSession(requests.Session):
+
+    timeout = None  # type: Optional[int]
+
+    def __init__(self, *args, **kwargs):
+        retries = kwargs.pop("retries", 0)
+        cache = kwargs.pop("cache", None)
+        insecure_hosts = kwargs.pop("insecure_hosts", [])
+
+        super(PipSession, self).__init__(*args, **kwargs)
+
+        # Attach our User Agent to the request
+        self.headers["User-Agent"] = user_agent()
+
+        # Attach our Authentication handler to the session
+        self.auth = MultiDomainBasicAuth()
+
+        # Create our urllib3.Retry instance which will allow us to customize
+        # how we handle retries.
+        retries = urllib3.Retry(
+            # Set the total number of retries that a particular request can
+            # have.
+            total=retries,
+
+            # A 503 error from PyPI typically means that the Fastly -> Origin
+            # connection got interrupted in some way. A 503 error in general
+            # is typically considered a transient error so we'll go ahead and
+            # retry it.
+            # A 500 may indicate transient error in Amazon S3
+            # A 520 or 527 - may indicate transient error in CloudFlare
+            status_forcelist=[500, 503, 520, 527],
+
+            # Add a small amount of back off between failed requests in
+            # order to prevent hammering the service.
+            backoff_factor=0.25,
+        )
+
+        # We want to _only_ cache responses on securely fetched origins. We do
+        # this because we can't validate the response of an insecurely fetched
+        # origin, and we don't want someone to be able to poison the cache and
+        # require manual eviction from the cache to fix it.
+        if cache:
+            secure_adapter = CacheControlAdapter(
+                cache=SafeFileCache(cache, use_dir_lock=True),
+                max_retries=retries,
+            )
+        else:
+            secure_adapter = HTTPAdapter(max_retries=retries)
+
+        # Our Insecure HTTPAdapter disables HTTPS validation. It does not
+        # support caching (see above) so we'll use it for all http:// URLs as
+        # well as any https:// host that we've marked as ignoring TLS errors
+        # for.
+        insecure_adapter = InsecureHTTPAdapter(max_retries=retries)
+
+        self.mount("https://", secure_adapter)
+        self.mount("http://", insecure_adapter)
+
+        # Enable file:// urls
+        self.mount("file://", LocalFSAdapter())
+
+        # We want to use a non-validating adapter for any requests which are
+        # deemed insecure.
+        for host in insecure_hosts:
+            self.mount("https://{}/".format(host), insecure_adapter)
+
+    def request(self, method, url, *args, **kwargs):
+        # Allow setting a default timeout on a session
+        kwargs.setdefault("timeout", self.timeout)
+
+        # Dispatch the actual request
+        return super(PipSession, self).request(method, url, *args, **kwargs)
+
+
+def get_file_content(url, comes_from=None, session=None):
+    # type: (str, Optional[str], Optional[PipSession]) -> Tuple[str, Text]
+    """Gets the content of a file; it may be a filename, file: URL, or
+    http: URL.  Returns (location, content).  Content is unicode.
+
+    :param url:         File path or url.
+    :param comes_from:  Origin description of requirements.
+    :param session:     Instance of pip.download.PipSession.
+    """
+    if session is None:
+        raise TypeError(
+            "get_file_content() missing 1 required keyword argument: 'session'"
+        )
+
+    match = _scheme_re.search(url)
+    if match:
+        scheme = match.group(1).lower()
+        if (scheme == 'file' and comes_from and
+                comes_from.startswith('http')):
+            raise InstallationError(
+                'Requirements file %s references URL %s, which is local'
+                % (comes_from, url))
+        if scheme == 'file':
+            path = url.split(':', 1)[1]
+            path = path.replace('\\', '/')
+            match = _url_slash_drive_re.match(path)
+            if match:
+                path = match.group(1) + ':' + path.split('|', 1)[1]
+            path = urllib_parse.unquote(path)
+            if path.startswith('/'):
+                path = '/' + path.lstrip('/')
+            url = path
+        else:
+            # FIXME: catch some errors
+            resp = session.get(url)
+            resp.raise_for_status()
+            return resp.url, resp.text
+    try:
+        with open(url, 'rb') as f:
+            content = auto_decode(f.read())
+    except IOError as exc:
+        raise InstallationError(
+            'Could not open requirements file: %s' % str(exc)
+        )
+    return url, content
+
+
+_scheme_re = re.compile(r'^(http|https|file):', re.I)
+_url_slash_drive_re = re.compile(r'/*([a-z])\|', re.I)
+
+
+def is_url(name):
+    # type: (Union[str, Text]) -> bool
+    """Returns true if the name looks like a URL"""
+    if ':' not in name:
+        return False
+    scheme = name.split(':', 1)[0].lower()
+    return scheme in ['http', 'https', 'file', 'ftp'] + vcs.all_schemes
+
+
+def url_to_path(url):
+    # type: (str) -> str
+    """
+    Convert a file: URL to a path.
+    """
+    assert url.startswith('file:'), (
+        "You can only turn file: urls into filenames (not %r)" % url)
+
+    _, netloc, path, _, _ = urllib_parse.urlsplit(url)
+
+    # if we have a UNC path, prepend UNC share notation
+    if netloc:
+        netloc = '\\\\' + netloc
+
+    path = urllib_request.url2pathname(netloc + path)
+    return path
+
+
+def path_to_url(path):
+    # type: (Union[str, Text]) -> str
+    """
+    Convert a path to a file: URL.  The path will be made absolute and have
+    quoted path parts.
+    """
+    path = os.path.normpath(os.path.abspath(path))
+    url = urllib_parse.urljoin('file:', urllib_request.pathname2url(path))
+    return url
+
+
+def is_archive_file(name):
+    # type: (str) -> bool
+    """Return True if `name` is a considered as an archive file."""
+    ext = splitext(name)[1].lower()
+    if ext in ARCHIVE_EXTENSIONS:
+        return True
+    return False
+
+
+def unpack_vcs_link(link, location):
+    vcs_backend = _get_used_vcs_backend(link)
+    vcs_backend.unpack(location)
+
+
+def _get_used_vcs_backend(link):
+    for backend in vcs.backends:
+        if link.scheme in backend.schemes:
+            vcs_backend = backend(link.url)
+            return vcs_backend
+
+
+def is_vcs_url(link):
+    # type: (Link) -> bool
+    return bool(_get_used_vcs_backend(link))
+
+
+def is_file_url(link):
+    # type: (Link) -> bool
+    return link.url.lower().startswith('file:')
+
+
+def is_dir_url(link):
+    # type: (Link) -> bool
+    """Return whether a file:// Link points to a directory.
+
+    ``link`` must not have any other scheme but file://. Call is_file_url()
+    first.
+
+    """
+    link_path = url_to_path(link.url_without_fragment)
+    return os.path.isdir(link_path)
+
+
+def _progress_indicator(iterable, *args, **kwargs):
+    return iterable
+
+
+def _download_url(
+    resp,  # type: Response
+    link,  # type: Link
+    content_file,  # type: IO
+    hashes,  # type: Hashes
+    progress_bar  # type: str
+):
+    # type: (...) -> None
+    try:
+        total_length = int(resp.headers['content-length'])
+    except (ValueError, KeyError, TypeError):
+        total_length = 0
+
+    cached_resp = getattr(resp, "from_cache", False)
+    if logger.getEffectiveLevel() > logging.INFO:
+        show_progress = False
+    elif cached_resp:
+        show_progress = False
+    elif total_length > (40 * 1000):
+        show_progress = True
+    elif not total_length:
+        show_progress = True
+    else:
+        show_progress = False
+
+    show_url = link.show_url
+
+    def resp_read(chunk_size):
+        try:
+            # Special case for urllib3.
+            for chunk in resp.raw.stream(
+                    chunk_size,
+                    # We use decode_content=False here because we don't
+                    # want urllib3 to mess with the raw bytes we get
+                    # from the server. If we decompress inside of
+                    # urllib3 then we cannot verify the checksum
+                    # because the checksum will be of the compressed
+                    # file. This breakage will only occur if the
+                    # server adds a Content-Encoding header, which
+                    # depends on how the server was configured:
+                    # - Some servers will notice that the file isn't a
+                    #   compressible file and will leave the file alone
+                    #   and with an empty Content-Encoding
+                    # - Some servers will notice that the file is
+                    #   already compressed and will leave the file
+                    #   alone and will add a Content-Encoding: gzip
+                    #   header
+                    # - Some servers won't notice anything at all and
+                    #   will take a file that's already been compressed
+                    #   and compress it again and set the
+                    #   Content-Encoding: gzip header
+                    #
+                    # By setting this not to decode automatically we
+                    # hope to eliminate problems with the second case.
+                    decode_content=False):
+                yield chunk
+        except AttributeError:
+            # Standard file-like object.
+            while True:
+                chunk = resp.raw.read(chunk_size)
+                if not chunk:
+                    break
+                yield chunk
+
+    def written_chunks(chunks):
+        for chunk in chunks:
+            content_file.write(chunk)
+            yield chunk
+
+    progress_indicator = _progress_indicator
+
+    if link.netloc == PyPI.netloc:
+        url = show_url
+    else:
+        url = link.url_without_fragment
+
+    if show_progress:  # We don't show progress on cached responses
+        progress_indicator = DownloadProgressProvider(progress_bar,
+                                                      max=total_length)
+        if total_length:
+            logger.info("Downloading %s (%s)", url, format_size(total_length))
+        else:
+            logger.info("Downloading %s", url)
+    elif cached_resp:
+        logger.info("Using cached %s", url)
+    else:
+        logger.info("Downloading %s", url)
+
+    logger.debug('Downloading from URL %s', link)
+
+    downloaded_chunks = written_chunks(
+        progress_indicator(
+            resp_read(CONTENT_CHUNK_SIZE),
+            CONTENT_CHUNK_SIZE
+        )
+    )
+    if hashes:
+        hashes.check_against_chunks(downloaded_chunks)
+    else:
+        consume(downloaded_chunks)
+
+
+def _copy_file(filename, location, link):
+    copy = True
+    download_location = os.path.join(location, link.filename)
+    if os.path.exists(download_location):
+        response = ask_path_exists(
+            'The file %s exists. (i)gnore, (w)ipe, (b)ackup, (a)abort' %
+            display_path(download_location), ('i', 'w', 'b', 'a'))
+        if response == 'i':
+            copy = False
+        elif response == 'w':
+            logger.warning('Deleting %s', display_path(download_location))
+            os.remove(download_location)
+        elif response == 'b':
+            dest_file = backup_dir(download_location)
+            logger.warning(
+                'Backing up %s to %s',
+                display_path(download_location),
+                display_path(dest_file),
+            )
+            shutil.move(download_location, dest_file)
+        elif response == 'a':
+            sys.exit(-1)
+    if copy:
+        shutil.copy(filename, download_location)
+        logger.info('Saved %s', display_path(download_location))
+
+
+def unpack_http_url(
+    link,  # type: Link
+    location,  # type: str
+    download_dir=None,  # type: Optional[str]
+    session=None,  # type: Optional[PipSession]
+    hashes=None,  # type: Optional[Hashes]
+    progress_bar="on"  # type: str
+):
+    # type: (...) -> None
+    if session is None:
+        raise TypeError(
+            "unpack_http_url() missing 1 required keyword argument: 'session'"
+        )
+
+    with TempDirectory(kind="unpack") as temp_dir:
+        # If a download dir is specified, is the file already downloaded there?
+        already_downloaded_path = None
+        if download_dir:
+            already_downloaded_path = _check_download_dir(link,
+                                                          download_dir,
+                                                          hashes)
+
+        if already_downloaded_path:
+            from_path = already_downloaded_path
+            content_type = mimetypes.guess_type(from_path)[0]
+        else:
+            # let's download to a tmp dir
+            from_path, content_type = _download_http_url(link,
+                                                         session,
+                                                         temp_dir.path,
+                                                         hashes,
+                                                         progress_bar)
+
+        # unpack the archive to the build dir location. even when only
+        # downloading archives, they have to be unpacked to parse dependencies
+        unpack_file(from_path, location, content_type, link)
+
+        # a download dir is specified; let's copy the archive there
+        if download_dir and not already_downloaded_path:
+            _copy_file(from_path, download_dir, link)
+
+        if not already_downloaded_path:
+            os.unlink(from_path)
+
+
+def unpack_file_url(
+    link,  # type: Link
+    location,  # type: str
+    download_dir=None,  # type: Optional[str]
+    hashes=None  # type: Optional[Hashes]
+):
+    # type: (...) -> None
+    """Unpack link into location.
+
+    If download_dir is provided and link points to a file, make a copy
+    of the link file inside download_dir.
+    """
+    link_path = url_to_path(link.url_without_fragment)
+
+    # If it's a url to a local directory
+    if is_dir_url(link):
+        if os.path.isdir(location):
+            rmtree(location)
+        shutil.copytree(link_path, location, symlinks=True)
+        if download_dir:
+            logger.info('Link is a directory, ignoring download_dir')
+        return
+
+    # If --require-hashes is off, `hashes` is either empty, the
+    # link's embedded hash, or MissingHashes; it is required to
+    # match. If --require-hashes is on, we are satisfied by any
+    # hash in `hashes` matching: a URL-based or an option-based
+    # one; no internet-sourced hash will be in `hashes`.
+    if hashes:
+        hashes.check_against_path(link_path)
+
+    # If a download dir is specified, is the file already there and valid?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link,
+                                                      download_dir,
+                                                      hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+    else:
+        from_path = link_path
+
+    content_type = mimetypes.guess_type(from_path)[0]
+
+    # unpack the archive to the build dir location. even when only downloading
+    # archives, they have to be unpacked to parse dependencies
+    unpack_file(from_path, location, content_type, link)
+
+    # a download dir is specified and not already downloaded
+    if download_dir and not already_downloaded_path:
+        _copy_file(from_path, download_dir, link)
+
+
+def _copy_dist_from_dir(link_path, location):
+    """Copy distribution files in `link_path` to `location`.
+
+    Invoked when user requests to install a local directory. E.g.:
+
+        pip install .
+        pip install ~/dev/git-repos/python-prompt-toolkit
+
+    """
+
+    # Note: This is currently VERY SLOW if you have a lot of data in the
+    # directory, because it copies everything with `shutil.copytree`.
+    # What it should really do is build an sdist and install that.
+    # See https://github.com/pypa/pip/issues/2195
+
+    if os.path.isdir(location):
+        rmtree(location)
+
+    # build an sdist
+    setup_py = 'setup.py'
+    sdist_args = [sys.executable]
+    sdist_args.append('-c')
+    sdist_args.append(SETUPTOOLS_SHIM % setup_py)
+    sdist_args.append('sdist')
+    sdist_args += ['--dist-dir', location]
+    logger.info('Running setup.py sdist for %s', link_path)
+
+    with indent_log():
+        call_subprocess(sdist_args, cwd=link_path, show_stdout=False)
+
+    # unpack sdist into `location`
+    sdist = os.path.join(location, os.listdir(location)[0])
+    logger.info('Unpacking sdist %s into %s', sdist, location)
+    unpack_file(sdist, location, content_type=None, link=None)
+
+
+class PipXmlrpcTransport(xmlrpc_client.Transport):
+    """Provide a `xmlrpclib.Transport` implementation via a `PipSession`
+    object.
+    """
+
+    def __init__(self, index_url, session, use_datetime=False):
+        xmlrpc_client.Transport.__init__(self, use_datetime)
+        index_parts = urllib_parse.urlparse(index_url)
+        self._scheme = index_parts.scheme
+        self._session = session
+
+    def request(self, host, handler, request_body, verbose=False):
+        parts = (self._scheme, host, handler, None, None, None)
+        url = urllib_parse.urlunparse(parts)
+        try:
+            headers = {'Content-Type': 'text/xml'}
+            response = self._session.post(url, data=request_body,
+                                          headers=headers, stream=True)
+            response.raise_for_status()
+            self.verbose = verbose
+            return self.parse_response(response.raw)
+        except requests.HTTPError as exc:
+            logger.critical(
+                "HTTP error %s while getting %s",
+                exc.response.status_code, url,
+            )
+            raise
+
+
+def unpack_url(
+    link,  # type: Optional[Link]
+    location,  # type: Optional[str]
+    download_dir=None,  # type: Optional[str]
+    only_download=False,  # type: bool
+    session=None,  # type: Optional[PipSession]
+    hashes=None,  # type: Optional[Hashes]
+    progress_bar="on"  # type: str
+):
+    # type: (...) -> None
+    """Unpack link.
+       If link is a VCS link:
+         if only_download, export into download_dir and ignore location
+          else unpack into location
+       for other types of link:
+         - unpack into location
+         - if download_dir, copy the file into download_dir
+         - if only_download, mark location for deletion
+
+    :param hashes: A Hashes object, one of whose embedded hashes must match,
+        or HashMismatch will be raised. If the Hashes is empty, no matches are
+        required, and unhashable types of requirements (like VCS ones, which
+        would ordinarily raise HashUnsupported) are allowed.
+    """
+    # non-editable vcs urls
+    if is_vcs_url(link):
+        unpack_vcs_link(link, location)
+
+    # file urls
+    elif is_file_url(link):
+        unpack_file_url(link, location, download_dir, hashes=hashes)
+
+    # http urls
+    else:
+        if session is None:
+            session = PipSession()
+
+        unpack_http_url(
+            link,
+            location,
+            download_dir,
+            session,
+            hashes=hashes,
+            progress_bar=progress_bar
+        )
+    if only_download:
+        write_delete_marker_file(location)
+
+
+def _download_http_url(
+    link,  # type: Link
+    session,  # type: PipSession
+    temp_dir,  # type: str
+    hashes,  # type: Hashes
+    progress_bar  # type: str
+):
+    # type: (...) -> Tuple[str, str]
+    """Download link url into temp_dir using provided session"""
+    target_url = link.url.split('#', 1)[0]
+    try:
+        resp = session.get(
+            target_url,
+            # We use Accept-Encoding: identity here because requests
+            # defaults to accepting compressed responses. This breaks in
+            # a variety of ways depending on how the server is configured.
+            # - Some servers will notice that the file isn't a compressible
+            #   file and will leave the file alone and with an empty
+            #   Content-Encoding
+            # - Some servers will notice that the file is already
+            #   compressed and will leave the file alone and will add a
+            #   Content-Encoding: gzip header
+            # - Some servers won't notice anything at all and will take
+            #   a file that's already been compressed and compress it again
+            #   and set the Content-Encoding: gzip header
+            # By setting this to request only the identity encoding We're
+            # hoping to eliminate the third case. Hopefully there does not
+            # exist a server which when given a file will notice it is
+            # already compressed and that you're not asking for a
+            # compressed file and will then decompress it before sending
+            # because if that's the case I don't think it'll ever be
+            # possible to make this work.
+            headers={"Accept-Encoding": "identity"},
+            stream=True,
+        )
+        resp.raise_for_status()
+    except requests.HTTPError as exc:
+        logger.critical(
+            "HTTP error %s while getting %s", exc.response.status_code, link,
+        )
+        raise
+
+    content_type = resp.headers.get('content-type', '')
+    filename = link.filename  # fallback
+    # Have a look at the Content-Disposition header for a better guess
+    content_disposition = resp.headers.get('content-disposition')
+    if content_disposition:
+        type, params = cgi.parse_header(content_disposition)
+        # We use ``or`` here because we don't want to use an "empty" value
+        # from the filename param.
+        filename = params.get('filename') or filename
+    ext = splitext(filename)[1]
+    if not ext:
+        ext = mimetypes.guess_extension(content_type)
+        if ext:
+            filename += ext
+    if not ext and link.url != resp.url:
+        ext = os.path.splitext(resp.url)[1]
+        if ext:
+            filename += ext
+    file_path = os.path.join(temp_dir, filename)
+    with open(file_path, 'wb') as content_file:
+        _download_url(resp, link, content_file, hashes, progress_bar)
+    return file_path, content_type
+
+
+def _check_download_dir(link, download_dir, hashes):
+    # type: (Link, str, Hashes) -> Optional[str]
+    """ Check download_dir for previously downloaded file with correct hash
+        If a correct file is found return its path else None
+    """
+    download_path = os.path.join(download_dir, link.filename)
+    if os.path.exists(download_path):
+        # If already downloaded, does its hash match?
+        logger.info('File was already downloaded %s', download_path)
+        if hashes:
+            try:
+                hashes.check_against_path(download_path)
+            except HashMismatch:
+                logger.warning(
+                    'Previously-downloaded file %s has bad hash. '
+                    'Re-downloading.',
+                    download_path
+                )
+                os.unlink(download_path)
+                return None
+        return download_path
+    return None

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/exceptions.py

@@ -0,0 +1,274 @@
+"""Exceptions used throughout package"""
+from __future__ import absolute_import
+
+from itertools import chain, groupby, repeat
+
+from pip._vendor.six import iteritems
+
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Optional  # noqa: F401
+    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
+
+
+class PipError(Exception):
+    """Base pip exception"""
+
+
+class ConfigurationError(PipError):
+    """General exception in configuration"""
+
+
+class InstallationError(PipError):
+    """General exception during installation"""
+
+
+class UninstallationError(PipError):
+    """General exception during uninstallation"""
+
+
+class DistributionNotFound(InstallationError):
+    """Raised when a distribution cannot be found to satisfy a requirement"""
+
+
+class RequirementsFileParseError(InstallationError):
+    """Raised when a general error occurs parsing a requirements file line."""
+
+
+class BestVersionAlreadyInstalled(PipError):
+    """Raised when the most up-to-date version of a package is already
+    installed."""
+
+
+class BadCommand(PipError):
+    """Raised when virtualenv or a command is not found"""
+
+
+class CommandError(PipError):
+    """Raised when there is an error in command-line arguments"""
+
+
+class PreviousBuildDirError(PipError):
+    """Raised when there's a previous conflicting build directory"""
+
+
+class InvalidWheelFilename(InstallationError):
+    """Invalid wheel filename."""
+
+
+class UnsupportedWheel(InstallationError):
+    """Unsupported wheel."""
+
+
+class HashErrors(InstallationError):
+    """Multiple HashError instances rolled into one for reporting"""
+
+    def __init__(self):
+        self.errors = []
+
+    def append(self, error):
+        self.errors.append(error)
+
+    def __str__(self):
+        lines = []
+        self.errors.sort(key=lambda e: e.order)
+        for cls, errors_of_cls in groupby(self.errors, lambda e: e.__class__):
+            lines.append(cls.head)
+            lines.extend(e.body() for e in errors_of_cls)
+        if lines:
+            return '\n'.join(lines)
+
+    def __nonzero__(self):
+        return bool(self.errors)
+
+    def __bool__(self):
+        return self.__nonzero__()
+
+
+class HashError(InstallationError):
+    """
+    A failure to verify a package against known-good hashes
+
+    :cvar order: An int sorting hash exception classes by difficulty of
+        recovery (lower being harder), so the user doesn't bother fretting
+        about unpinned packages when he has deeper issues, like VCS
+        dependencies, to deal with. Also keeps error reports in a
+        deterministic order.
+    :cvar head: A section heading for display above potentially many
+        exceptions of this kind
+    :ivar req: The InstallRequirement that triggered this error. This is
+        pasted on after the exception is instantiated, because it's not
+        typically available earlier.
+
+    """
+    req = None  # type: Optional[InstallRequirement]
+    head = ''
+
+    def body(self):
+        """Return a summary of me for display under the heading.
+
+        This default implementation simply prints a description of the
+        triggering requirement.
+
+        :param req: The InstallRequirement that provoked this error, with
+            populate_link() having already been called
+
+        """
+        return '    %s' % self._requirement_name()
+
+    def __str__(self):
+        return '%s\n%s' % (self.head, self.body())
+
+    def _requirement_name(self):
+        """Return a description of the requirement that triggered me.
+
+        This default implementation returns long description of the req, with
+        line numbers
+
+        """
+        return str(self.req) if self.req else 'unknown package'
+
+
+class VcsHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 0
+    head = ("Can't verify hashes for these requirements because we don't "
+            "have a way to hash version control repositories:")
+
+
+class DirectoryUrlHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 1
+    head = ("Can't verify hashes for these file:// requirements because they "
+            "point to directories:")
+
+
+class HashMissing(HashError):
+    """A hash was needed for a requirement but is absent."""
+
+    order = 2
+    head = ('Hashes are required in --require-hashes mode, but they are '
+            'missing from some requirements. Here is a list of those '
+            'requirements along with the hashes their downloaded archives '
+            'actually had. Add lines like these to your requirements files to '
+            'prevent tampering. (If you did not enable --require-hashes '
+            'manually, note that it turns on automatically when any package '
+            'has a hash.)')
+
+    def __init__(self, gotten_hash):
+        """
+        :param gotten_hash: The hash of the (possibly malicious) archive we
+            just downloaded
+        """
+        self.gotten_hash = gotten_hash
+
+    def body(self):
+        # Dodge circular import.
+        from pip._internal.utils.hashes import FAVORITE_HASH
+
+        package = None
+        if self.req:
+            # In the case of URL-based requirements, display the original URL
+            # seen in the requirements file rather than the package name,
+            # so the output can be directly copied into the requirements file.
+            package = (self.req.original_link if self.req.original_link
+                       # In case someone feeds something downright stupid
+                       # to InstallRequirement's constructor.
+                       else getattr(self.req, 'req', None))
+        return '    %s --hash=%s:%s' % (package or 'unknown package',
+                                        FAVORITE_HASH,
+                                        self.gotten_hash)
+
+
+class HashUnpinned(HashError):
+    """A requirement had a hash specified but was not pinned to a specific
+    version."""
+
+    order = 3
+    head = ('In --require-hashes mode, all requirements must have their '
+            'versions pinned with ==. These do not:')
+
+
+class HashMismatch(HashError):
+    """
+    Distribution file hash values don't match.
+
+    :ivar package_name: The name of the package that triggered the hash
+        mismatch. Feel free to write to this after the exception is raise to
+        improve its error message.
+
+    """
+    order = 4
+    head = ('THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS '
+            'FILE. If you have updated the package versions, please update '
+            'the hashes. Otherwise, examine the package contents carefully; '
+            'someone may have tampered with them.')
+
+    def __init__(self, allowed, gots):
+        """
+        :param allowed: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        :param gots: A dict of algorithm names pointing to hashes we
+            actually got from the files under suspicion
+        """
+        self.allowed = allowed
+        self.gots = gots
+
+    def body(self):
+        return '    %s:\n%s' % (self._requirement_name(),
+                                self._hash_comparison())
+
+    def _hash_comparison(self):
+        """
+        Return a comparison of actual and expected hash values.
+
+        Example::
+
+               Expected sha256 abcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcde
+                            or 123451234512345123451234512345123451234512345
+                    Got        bcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdef
+
+        """
+        def hash_then_or(hash_name):
+            # For now, all the decent hashes have 6-char names, so we can get
+            # away with hard-coding space literals.
+            return chain([hash_name], repeat('    or'))
+
+        lines = []
+        for hash_name, expecteds in iteritems(self.allowed):
+            prefix = hash_then_or(hash_name)
+            lines.extend(('        Expected %s %s' % (next(prefix), e))
+                         for e in expecteds)
+            lines.append('             Got        %s\n' %
+                         self.gots[hash_name].hexdigest())
+            prefix = '    or'
+        return '\n'.join(lines)
+
+
+class UnsupportedPythonVersion(InstallationError):
+    """Unsupported python version according to Requires-Python package
+    metadata."""
+
+
+class ConfigurationFileCouldNotBeLoaded(ConfigurationError):
+    """When there are errors while loading a configuration file
+    """
+
+    def __init__(self, reason="could not be loaded", fname=None, error=None):
+        super(ConfigurationFileCouldNotBeLoaded, self).__init__(error)
+        self.reason = reason
+        self.fname = fname
+        self.error = error
+
+    def __str__(self):
+        if self.fname is not None:
+            message_part = " in {}.".format(self.fname)
+        else:
+            assert self.error is not None
+            message_part = ".\n{}\n".format(self.error.message)
+        return "Configuration file {}{}".format(self.reason, message_part)

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/index.py

@@ -0,0 +1,990 @@
+"""Routines related to PyPI, indexes"""
+from __future__ import absolute_import
+
+import cgi
+import itertools
+import logging
+import mimetypes
+import os
+import posixpath
+import re
+import sys
+from collections import namedtuple
+
+from pip._vendor import html5lib, requests, six
+from pip._vendor.distlib.compat import unescape
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging.version import parse as parse_version
+from pip._vendor.requests.exceptions import RetryError, SSLError
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+
+from pip._internal.download import HAS_TLS, is_url, path_to_url, url_to_path
+from pip._internal.exceptions import (
+    BestVersionAlreadyInstalled, DistributionNotFound, InvalidWheelFilename,
+    UnsupportedWheel,
+)
+from pip._internal.models.candidate import InstallationCandidate
+from pip._internal.models.format_control import FormatControl
+from pip._internal.models.index import PyPI
+from pip._internal.models.link import Link
+from pip._internal.pep425tags import get_supported
+from pip._internal.utils.compat import ipaddress
+from pip._internal.utils.logging import indent_log
+from pip._internal.utils.misc import (
+    ARCHIVE_EXTENSIONS, SUPPORTED_EXTENSIONS, WHEEL_EXTENSION, normalize_path,
+    redact_password_from_url,
+)
+from pip._internal.utils.packaging import check_requires_python
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+from pip._internal.wheel import Wheel
+
+if MYPY_CHECK_RUNNING:
+    from logging import Logger  # noqa: F401
+    from typing import (  # noqa: F401
+        Tuple, Optional, Any, List, Union, Callable, Set, Sequence,
+        Iterable, MutableMapping
+    )
+    from pip._vendor.packaging.version import _BaseVersion  # noqa: F401
+    from pip._vendor.requests import Response  # noqa: F401
+    from pip._internal.req import InstallRequirement  # noqa: F401
+    from pip._internal.download import PipSession  # noqa: F401
+
+    SecureOrigin = Tuple[str, str, Optional[str]]
+    BuildTag = Tuple[Any, ...]  # either emply tuple or Tuple[int, str]
+    CandidateSortingKey = Tuple[int, _BaseVersion, BuildTag, Optional[int]]
+
+__all__ = ['FormatControl', 'PackageFinder']
+
+
+SECURE_ORIGINS = [
+    # protocol, hostname, port
+    # Taken from Chrome's list of secure origins (See: http://bit.ly/1qrySKC)
+    ("https", "*", "*"),
+    ("*", "localhost", "*"),
+    ("*", "127.0.0.0/8", "*"),
+    ("*", "::1/128", "*"),
+    ("file", "*", None),
+    # ssh is always secure.
+    ("ssh", "*", "*"),
+]  # type: List[SecureOrigin]
+
+
+logger = logging.getLogger(__name__)
+
+
+def _match_vcs_scheme(url):
+    # type: (str) -> Optional[str]
+    """Look for VCS schemes in the URL.
+
+    Returns the matched VCS scheme, or None if there's no match.
+    """
+    from pip._internal.vcs import VcsSupport
+    for scheme in VcsSupport.schemes:
+        if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
+            return scheme
+    return None
+
+
+def _is_url_like_archive(url):
+    # type: (str) -> bool
+    """Return whether the URL looks like an archive.
+    """
+    filename = Link(url).filename
+    for bad_ext in ARCHIVE_EXTENSIONS:
+        if filename.endswith(bad_ext):
+            return True
+    return False
+
+
+class _NotHTML(Exception):
+    def __init__(self, content_type, request_desc):
+        # type: (str, str) -> None
+        super(_NotHTML, self).__init__(content_type, request_desc)
+        self.content_type = content_type
+        self.request_desc = request_desc
+
+
+def _ensure_html_header(response):
+    # type: (Response) -> None
+    """Check the Content-Type header to ensure the response contains HTML.
+
+    Raises `_NotHTML` if the content type is not text/html.
+    """
+    content_type = response.headers.get("Content-Type", "")
+    if not content_type.lower().startswith("text/html"):
+        raise _NotHTML(content_type, response.request.method)
+
+
+class _NotHTTP(Exception):
+    pass
+
+
+def _ensure_html_response(url, session):
+    # type: (str, PipSession) -> None
+    """Send a HEAD request to the URL, and ensure the response contains HTML.
+
+    Raises `_NotHTTP` if the URL is not available for a HEAD request, or
+    `_NotHTML` if the content type is not text/html.
+    """
+    scheme, netloc, path, query, fragment = urllib_parse.urlsplit(url)
+    if scheme not in {'http', 'https'}:
+        raise _NotHTTP()
+
+    resp = session.head(url, allow_redirects=True)
+    resp.raise_for_status()
+
+    _ensure_html_header(resp)
+
+
+def _get_html_response(url, session):
+    # type: (str, PipSession) -> Response
+    """Access an HTML page with GET, and return the response.
+
+    This consists of three parts:
+
+    1. If the URL looks suspiciously like an archive, send a HEAD first to
+       check the Content-Type is HTML, to avoid downloading a large file.
+       Raise `_NotHTTP` if the content type cannot be determined, or
+       `_NotHTML` if it is not HTML.
+    2. Actually perform the request. Raise HTTP exceptions on network failures.
+    3. Check the Content-Type header to make sure we got HTML, and raise
+       `_NotHTML` otherwise.
+    """
+    if _is_url_like_archive(url):
+        _ensure_html_response(url, session=session)
+
+    logger.debug('Getting page %s', url)
+
+    resp = session.get(
+        url,
+        headers={
+            "Accept": "text/html",
+            # We don't want to blindly returned cached data for
+            # /simple/, because authors generally expecting that
+            # twine upload && pip install will function, but if
+            # they've done a pip install in the last ~10 minutes
+            # it won't. Thus by setting this to zero we will not
+            # blindly use any cached data, however the benefit of
+            # using max-age=0 instead of no-cache, is that we will
+            # still support conditional requests, so we will still
+            # minimize traffic sent in cases where the page hasn't
+            # changed at all, we will just always incur the round
+            # trip for the conditional GET now instead of only
+            # once per 10 minutes.
+            # For more information, please see pypa/pip#5670.
+            "Cache-Control": "max-age=0",
+        },
+    )
+    resp.raise_for_status()
+
+    # The check for archives above only works if the url ends with
+    # something that looks like an archive. However that is not a
+    # requirement of an url. Unless we issue a HEAD request on every
+    # url we cannot know ahead of time for sure if something is HTML
+    # or not. However we can check after we've downloaded it.
+    _ensure_html_header(resp)
+
+    return resp
+
+
+def _handle_get_page_fail(
+    link,  # type: Link
+    reason,  # type: Union[str, Exception]
+    meth=None  # type: Optional[Callable[..., None]]
+):
+    # type: (...) -> None
+    if meth is None:
+        meth = logger.debug
+    meth("Could not fetch URL %s: %s - skipping", link, reason)
+
+
+def _get_html_page(link, session=None):
+    # type: (Link, Optional[PipSession]) -> Optional[HTMLPage]
+    if session is None:
+        raise TypeError(
+            "_get_html_page() missing 1 required keyword argument: 'session'"
+        )
+
+    url = link.url.split('#', 1)[0]
+
+    # Check for VCS schemes that do not support lookup as web pages.
+    vcs_scheme = _match_vcs_scheme(url)
+    if vcs_scheme:
+        logger.debug('Cannot look at %s URL %s', vcs_scheme, link)
+        return None
+
+    # Tack index.html onto file:// URLs that point to directories
+    scheme, _, path, _, _, _ = urllib_parse.urlparse(url)
+    if (scheme == 'file' and os.path.isdir(urllib_request.url2pathname(path))):
+        # add trailing slash if not present so urljoin doesn't trim
+        # final segment
+        if not url.endswith('/'):
+            url += '/'
+        url = urllib_parse.urljoin(url, 'index.html')
+        logger.debug(' file: URL is directory, getting %s', url)
+
+    try:
+        resp = _get_html_response(url, session=session)
+    except _NotHTTP as exc:
+        logger.debug(
+            'Skipping page %s because it looks like an archive, and cannot '
+            'be checked by HEAD.', link,
+        )
+    except _NotHTML as exc:
+        logger.debug(
+            'Skipping page %s because the %s request got Content-Type: %s',
+            link, exc.request_desc, exc.content_type,
+        )
+    except requests.HTTPError as exc:
+        _handle_get_page_fail(link, exc)
+    except RetryError as exc:
+        _handle_get_page_fail(link, exc)
+    except SSLError as exc:
+        reason = "There was a problem confirming the ssl certificate: "
+        reason += str(exc)
+        _handle_get_page_fail(link, reason, meth=logger.info)
+    except requests.ConnectionError as exc:
+        _handle_get_page_fail(link, "connection error: %s" % exc)
+    except requests.Timeout:
+        _handle_get_page_fail(link, "timed out")
+    else:
+        return HTMLPage(resp.content, resp.url, resp.headers)
+    return None
+
+
+class PackageFinder(object):
+    """This finds packages.
+
+    This is meant to match easy_install's technique for looking for
+    packages, by reading pages and looking for appropriate links.
+    """
+
+    def __init__(
+        self,
+        find_links,  # type: List[str]
+        index_urls,  # type: List[str]
+        allow_all_prereleases=False,  # type: bool
+        trusted_hosts=None,  # type: Optional[Iterable[str]]
+        session=None,  # type: Optional[PipSession]
+        format_control=None,  # type: Optional[FormatControl]
+        platform=None,  # type: Optional[str]
+        versions=None,  # type: Optional[List[str]]
+        abi=None,  # type: Optional[str]
+        implementation=None,  # type: Optional[str]
+        prefer_binary=False  # type: bool
+    ):
+        # type: (...) -> None
+        """Create a PackageFinder.
+
+        :param format_control: A FormatControl object or None. Used to control
+            the selection of source packages / binary packages when consulting
+            the index and links.
+        :param platform: A string or None. If None, searches for packages
+            that are supported by the current system. Otherwise, will find
+            packages that can be built on the platform passed in. These
+            packages will only be downloaded for distribution: they will
+            not be built locally.
+        :param versions: A list of strings or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        :param abi: A string or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        :param implementation: A string or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        """
+        if session is None:
+            raise TypeError(
+                "PackageFinder() missing 1 required keyword argument: "
+                "'session'"
+            )
+
+        # Build find_links. If an argument starts with ~, it may be
+        # a local file relative to a home directory. So try normalizing
+        # it and if it exists, use the normalized version.
+        # This is deliberately conservative - it might be fine just to
+        # blindly normalize anything starting with a ~...
+        self.find_links = []  # type: List[str]
+        for link in find_links:
+            if link.startswith('~'):
+                new_link = normalize_path(link)
+                if os.path.exists(new_link):
+                    link = new_link
+            self.find_links.append(link)
+
+        self.index_urls = index_urls
+
+        # These are boring links that have already been logged somehow:
+        self.logged_links = set()  # type: Set[Link]
+
+        self.format_control = format_control or FormatControl(set(), set())
+
+        # Domains that we won't emit warnings for when not using HTTPS
+        self.secure_origins = [
+            ("*", host, "*")
+            for host in (trusted_hosts if trusted_hosts else [])
+        ]  # type: List[SecureOrigin]
+
+        # Do we want to allow _all_ pre-releases?
+        self.allow_all_prereleases = allow_all_prereleases
+
+        # The Session we'll use to make requests
+        self.session = session
+
+        # The valid tags to check potential found wheel candidates against
+        self.valid_tags = get_supported(
+            versions=versions,
+            platform=platform,
+            abi=abi,
+            impl=implementation,
+        )
+
+        # Do we prefer old, but valid, binary dist over new source dist
+        self.prefer_binary = prefer_binary
+
+        # If we don't have TLS enabled, then WARN if anyplace we're looking
+        # relies on TLS.
+        if not HAS_TLS:
+            for link in itertools.chain(self.index_urls, self.find_links):
+                parsed = urllib_parse.urlparse(link)
+                if parsed.scheme == "https":
+                    logger.warning(
+                        "pip is configured with locations that require "
+                        "TLS/SSL, however the ssl module in Python is not "
+                        "available."
+                    )
+                    break
+
+    def get_formatted_locations(self):
+        # type: () -> str
+        lines = []
+        if self.index_urls and self.index_urls != [PyPI.simple_url]:
+            lines.append(
+                "Looking in indexes: {}".format(", ".join(
+                    redact_password_from_url(url) for url in self.index_urls))
+            )
+        if self.find_links:
+            lines.append(
+                "Looking in links: {}".format(", ".join(self.find_links))
+            )
+        return "\n".join(lines)
+
+    @staticmethod
+    def _sort_locations(locations, expand_dir=False):
+        # type: (Sequence[str], bool) -> Tuple[List[str], List[str]]
+        """
+        Sort locations into "files" (archives) and "urls", and return
+        a pair of lists (files,urls)
+        """
+        files = []
+        urls = []
+
+        # puts the url for the given file path into the appropriate list
+        def sort_path(path):
+            url = path_to_url(path)
+            if mimetypes.guess_type(url, strict=False)[0] == 'text/html':
+                urls.append(url)
+            else:
+                files.append(url)
+
+        for url in locations:
+
+            is_local_path = os.path.exists(url)
+            is_file_url = url.startswith('file:')
+
+            if is_local_path or is_file_url:
+                if is_local_path:
+                    path = url
+                else:
+                    path = url_to_path(url)
+                if os.path.isdir(path):
+                    if expand_dir:
+                        path = os.path.realpath(path)
+                        for item in os.listdir(path):
+                            sort_path(os.path.join(path, item))
+                    elif is_file_url:
+                        urls.append(url)
+                    else:
+                        logger.warning(
+                            "Path '{0}' is ignored: "
+                            "it is a directory.".format(path),
+                        )
+                elif os.path.isfile(path):
+                    sort_path(path)
+                else:
+                    logger.warning(
+                        "Url '%s' is ignored: it is neither a file "
+                        "nor a directory.", url,
+                    )
+            elif is_url(url):
+                # Only add url with clear scheme
+                urls.append(url)
+            else:
+                logger.warning(
+                    "Url '%s' is ignored. It is either a non-existing "
+                    "path or lacks a specific scheme.", url,
+                )
+
+        return files, urls
+
+    def _candidate_sort_key(self, candidate):
+        # type: (InstallationCandidate) -> CandidateSortingKey
+        """
+        Function used to generate link sort key for link tuples.
+        The greater the return value, the more preferred it is.
+        If not finding wheels, then sorted by version only.
+        If finding wheels, then the sort order is by version, then:
+          1. existing installs
+          2. wheels ordered via Wheel.support_index_min(self.valid_tags)
+          3. source archives
+        If prefer_binary was set, then all wheels are sorted above sources.
+        Note: it was considered to embed this logic into the Link
+              comparison operators, but then different sdist links
+              with the same version, would have to be considered equal
+        """
+        support_num = len(self.valid_tags)
+        build_tag = tuple()  # type: BuildTag
+        binary_preference = 0
+        if candidate.location.is_wheel:
+            # can raise InvalidWheelFilename
+            wheel = Wheel(candidate.location.filename)
+            if not wheel.supported(self.valid_tags):
+                raise UnsupportedWheel(
+                    "%s is not a supported wheel for this platform. It "
+                    "can't be sorted." % wheel.filename
+                )
+            if self.prefer_binary:
+                binary_preference = 1
+            pri = -(wheel.support_index_min(self.valid_tags))
+            if wheel.build_tag is not None:
+                match = re.match(r'^(\d+)(.*)$', wheel.build_tag)
+                build_tag_groups = match.groups()
+                build_tag = (int(build_tag_groups[0]), build_tag_groups[1])
+        else:  # sdist
+            pri = -(support_num)
+        return (binary_preference, candidate.version, build_tag, pri)
+
+    def _validate_secure_origin(self, logger, location):
+        # type: (Logger, Link) -> bool
+        # Determine if this url used a secure transport mechanism
+        parsed = urllib_parse.urlparse(str(location))
+        origin = (parsed.scheme, parsed.hostname, parsed.port)
+
+        # The protocol to use to see if the protocol matches.
+        # Don't count the repository type as part of the protocol: in
+        # cases such as "git+ssh", only use "ssh". (I.e., Only verify against
+        # the last scheme.)
+        protocol = origin[0].rsplit('+', 1)[-1]
+
+        # Determine if our origin is a secure origin by looking through our
+        # hardcoded list of secure origins, as well as any additional ones
+        # configured on this PackageFinder instance.
+        for secure_origin in (SECURE_ORIGINS + self.secure_origins):
+            if protocol != secure_origin[0] and secure_origin[0] != "*":
+                continue
+
+            try:
+                # We need to do this decode dance to ensure that we have a
+                # unicode object, even on Python 2.x.
+                addr = ipaddress.ip_address(
+                    origin[1]
+                    if (
+                        isinstance(origin[1], six.text_type) or
+                        origin[1] is None
+                    )
+                    else origin[1].decode("utf8")
+                )
+                network = ipaddress.ip_network(
+                    secure_origin[1]
+                    if isinstance(secure_origin[1], six.text_type)
+                    # setting secure_origin[1] to proper Union[bytes, str]
+                    # creates problems in other places
+                    else secure_origin[1].decode("utf8")  # type: ignore
+                )
+            except ValueError:
+                # We don't have both a valid address or a valid network, so
+                # we'll check this origin against hostnames.
+                if (origin[1] and
+                        origin[1].lower() != secure_origin[1].lower() and
+                        secure_origin[1] != "*"):
+                    continue
+            else:
+                # We have a valid address and network, so see if the address
+                # is contained within the network.
+                if addr not in network:
+                    continue
+
+            # Check to see if the port patches
+            if (origin[2] != secure_origin[2] and
+                    secure_origin[2] != "*" and
+                    secure_origin[2] is not None):
+                continue
+
+            # If we've gotten here, then this origin matches the current
+            # secure origin and we should return True
+            return True
+
+        # If we've gotten to this point, then the origin isn't secure and we
+        # will not accept it as a valid location to search. We will however
+        # log a warning that we are ignoring it.
+        logger.warning(
+            "The repository located at %s is not a trusted or secure host and "
+            "is being ignored. If this repository is available via HTTPS we "
+            "recommend you use HTTPS instead, otherwise you may silence "
+            "this warning and allow it anyway with '--trusted-host %s'.",
+            parsed.hostname,
+            parsed.hostname,
+        )
+
+        return False
+
+    def _get_index_urls_locations(self, project_name):
+        # type: (str) -> List[str]
+        """Returns the locations found via self.index_urls
+
+        Checks the url_name on the main (first in the list) index and
+        use this url_name to produce all locations
+        """
+
+        def mkurl_pypi_url(url):
+            loc = posixpath.join(
+                url,
+                urllib_parse.quote(canonicalize_name(project_name)))
+            # For maximum compatibility with easy_install, ensure the path
+            # ends in a trailing slash.  Although this isn't in the spec
+            # (and PyPI can handle it without the slash) some other index
+            # implementations might break if they relied on easy_install's
+            # behavior.
+            if not loc.endswith('/'):
+                loc = loc + '/'
+            return loc
+
+        return [mkurl_pypi_url(url) for url in self.index_urls]
+
+    def find_all_candidates(self, project_name):
+        # type: (str) -> List[Optional[InstallationCandidate]]
+        """Find all available InstallationCandidate for project_name
+
+        This checks index_urls and find_links.
+        All versions found are returned as an InstallationCandidate list.
+
+        See _link_package_versions for details on which files are accepted
+        """
+        index_locations = self._get_index_urls_locations(project_name)
+        index_file_loc, index_url_loc = self._sort_locations(index_locations)
+        fl_file_loc, fl_url_loc = self._sort_locations(
+            self.find_links, expand_dir=True,
+        )
+
+        file_locations = (Link(url) for url in itertools.chain(
+            index_file_loc, fl_file_loc,
+        ))
+
+        # We trust every url that the user has given us whether it was given
+        #   via --index-url or --find-links.
+        # We want to filter out any thing which does not have a secure origin.
+        url_locations = [
+            link for link in itertools.chain(
+                (Link(url) for url in index_url_loc),
+                (Link(url) for url in fl_url_loc),
+            )
+            if self._validate_secure_origin(logger, link)
+        ]
+
+        logger.debug('%d location(s) to search for versions of %s:',
+                     len(url_locations), project_name)
+
+        for location in url_locations:
+            logger.debug('* %s', location)
+
+        canonical_name = canonicalize_name(project_name)
+        formats = self.format_control.get_allowed_formats(canonical_name)
+        search = Search(project_name, canonical_name, formats)
+        find_links_versions = self._package_versions(
+            # We trust every directly linked archive in find_links
+            (Link(url, '-f') for url in self.find_links),
+            search
+        )
+
+        page_versions = []
+        for page in self._get_pages(url_locations, project_name):
+            logger.debug('Analyzing links from page %s', page.url)
+            with indent_log():
+                page_versions.extend(
+                    self._package_versions(page.iter_links(), search)
+                )
+
+        file_versions = self._package_versions(file_locations, search)
+        if file_versions:
+            file_versions.sort(reverse=True)
+            logger.debug(
+                'Local files found: %s',
+                ', '.join([
+                    url_to_path(candidate.location.url)
+                    for candidate in file_versions
+                ])
+            )
+
+        # This is an intentional priority ordering
+        return file_versions + find_links_versions + page_versions
+
+    def find_requirement(self, req, upgrade):
+        # type: (InstallRequirement, bool) -> Optional[Link]
+        """Try to find a Link matching req
+
+        Expects req, an InstallRequirement and upgrade, a boolean
+        Returns a Link if found,
+        Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
+        """
+        all_candidates = self.find_all_candidates(req.name)
+
+        # Filter out anything which doesn't match our specifier
+        compatible_versions = set(
+            req.specifier.filter(
+                # We turn the version object into a str here because otherwise
+                # when we're debundled but setuptools isn't, Python will see
+                # packaging.version.Version and
+                # pkg_resources._vendor.packaging.version.Version as different
+                # types. This way we'll use a str as a common data interchange
+                # format. If we stop using the pkg_resources provided specifier
+                # and start using our own, we can drop the cast to str().
+                [str(c.version) for c in all_candidates],
+                prereleases=(
+                    self.allow_all_prereleases
+                    if self.allow_all_prereleases else None
+                ),
+            )
+        )
+        applicable_candidates = [
+            # Again, converting to str to deal with debundling.
+            c for c in all_candidates if str(c.version) in compatible_versions
+        ]
+
+        if applicable_candidates:
+            best_candidate = max(applicable_candidates,
+                                 key=self._candidate_sort_key)
+        else:
+            best_candidate = None
+
+        if req.satisfied_by is not None:
+            installed_version = parse_version(req.satisfied_by.version)
+        else:
+            installed_version = None
+
+        if installed_version is None and best_candidate is None:
+            logger.critical(
+                'Could not find a version that satisfies the requirement %s '
+                '(from versions: %s)',
+                req,
+                ', '.join(
+                    sorted(
+                        {str(c.version) for c in all_candidates},
+                        key=parse_version,
+                    )
+                )
+            )
+
+            raise DistributionNotFound(
+                'No matching distribution found for %s' % req
+            )
+
+        best_installed = False
+        if installed_version and (
+                best_candidate is None or
+                best_candidate.version <= installed_version):
+            best_installed = True
+
+        if not upgrade and installed_version is not None:
+            if best_installed:
+                logger.debug(
+                    'Existing installed version (%s) is most up-to-date and '
+                    'satisfies requirement',
+                    installed_version,
+                )
+            else:
+                logger.debug(
+                    'Existing installed version (%s) satisfies requirement '
+                    '(most up-to-date version is %s)',
+                    installed_version,
+                    best_candidate.version,
+                )
+            return None
+
+        if best_installed:
+            # We have an existing version, and its the best version
+            logger.debug(
+                'Installed version (%s) is most up-to-date (past versions: '
+                '%s)',
+                installed_version,
+                ', '.join(sorted(compatible_versions, key=parse_version)) or
+                "none",
+            )
+            raise BestVersionAlreadyInstalled
+
+        logger.debug(
+            'Using version %s (newest of versions: %s)',
+            best_candidate.version,
+            ', '.join(sorted(compatible_versions, key=parse_version))
+        )
+        return best_candidate.location
+
+    def _get_pages(self, locations, project_name):
+        # type: (Iterable[Link], str) -> Iterable[HTMLPage]
+        """
+        Yields (page, page_url) from the given locations, skipping
+        locations that have errors.
+        """
+        seen = set()  # type: Set[Link]
+        for location in locations:
+            if location in seen:
+                continue
+            seen.add(location)
+
+            page = _get_html_page(location, session=self.session)
+            if page is None:
+                continue
+
+            yield page
+
+    _py_version_re = re.compile(r'-py([123]\.?[0-9]?)$')
+
+    def _sort_links(self, links):
+        # type: (Iterable[Link]) -> List[Link]
+        """
+        Returns elements of links in order, non-egg links first, egg links
+        second, while eliminating duplicates
+        """
+        eggs, no_eggs = [], []
+        seen = set()  # type: Set[Link]
+        for link in links:
+            if link not in seen:
+                seen.add(link)
+                if link.egg_fragment:
+                    eggs.append(link)
+                else:
+                    no_eggs.append(link)
+        return no_eggs + eggs
+
+    def _package_versions(
+        self,
+        links,  # type: Iterable[Link]
+        search  # type: Search
+    ):
+        # type: (...) -> List[Optional[InstallationCandidate]]
+        result = []
+        for link in self._sort_links(links):
+            v = self._link_package_versions(link, search)
+            if v is not None:
+                result.append(v)
+        return result
+
+    def _log_skipped_link(self, link, reason):
+        # type: (Link, str) -> None
+        if link not in self.logged_links:
+            logger.debug('Skipping link %s; %s', link, reason)
+            self.logged_links.add(link)
+
+    def _link_package_versions(self, link, search):
+        # type: (Link, Search) -> Optional[InstallationCandidate]
+        """Return an InstallationCandidate or None"""
+        version = None
+        if link.egg_fragment:
+            egg_info = link.egg_fragment
+            ext = link.ext
+        else:
+            egg_info, ext = link.splitext()
+            if not ext:
+                self._log_skipped_link(link, 'not a file')
+                return None
+            if ext not in SUPPORTED_EXTENSIONS:
+                self._log_skipped_link(
+                    link, 'unsupported archive format: %s' % ext,
+                )
+                return None
+            if "binary" not in search.formats and ext == WHEEL_EXTENSION:
+                self._log_skipped_link(
+                    link, 'No binaries permitted for %s' % search.supplied,
+                )
+                return None
+            if "macosx10" in link.path and ext == '.zip':
+                self._log_skipped_link(link, 'macosx10 one')
+                return None
+            if ext == WHEEL_EXTENSION:
+                try:
+                    wheel = Wheel(link.filename)
+                except InvalidWheelFilename:
+                    self._log_skipped_link(link, 'invalid wheel filename')
+                    return None
+                if canonicalize_name(wheel.name) != search.canonical:
+                    self._log_skipped_link(
+                        link, 'wrong project name (not %s)' % search.supplied)
+                    return None
+
+                if not wheel.supported(self.valid_tags):
+                    self._log_skipped_link(
+                        link, 'it is not compatible with this Python')
+                    return None
+
+                version = wheel.version
+
+        # This should be up by the search.ok_binary check, but see issue 2700.
+        if "source" not in search.formats and ext != WHEEL_EXTENSION:
+            self._log_skipped_link(
+                link, 'No sources permitted for %s' % search.supplied,
+            )
+            return None
+
+        if not version:
+            version = _egg_info_matches(egg_info, search.canonical)
+        if not version:
+            self._log_skipped_link(
+                link, 'Missing project version for %s' % search.supplied)
+            return None
+
+        match = self._py_version_re.search(version)
+        if match:
+            version = version[:match.start()]
+            py_version = match.group(1)
+            if py_version != sys.version[:3]:
+                self._log_skipped_link(
+                    link, 'Python version is incorrect')
+                return None
+        try:
+            support_this_python = check_requires_python(link.requires_python)
+        except specifiers.InvalidSpecifier:
+            logger.debug("Package %s has an invalid Requires-Python entry: %s",
+                         link.filename, link.requires_python)
+            support_this_python = True
+
+        if not support_this_python:
+            logger.debug("The package %s is incompatible with the python "
+                         "version in use. Acceptable python versions are: %s",
+                         link, link.requires_python)
+            return None
+        logger.debug('Found link %s, version: %s', link, version)
+
+        return InstallationCandidate(search.supplied, version, link)
+
+
+def _find_name_version_sep(egg_info, canonical_name):
+    # type: (str, str) -> int
+    """Find the separator's index based on the package's canonical name.
+
+    `egg_info` must be an egg info string for the given package, and
+    `canonical_name` must be the package's canonical name.
+
+    This function is needed since the canonicalized name does not necessarily
+    have the same length as the egg info's name part. An example::
+
+    >>> egg_info = 'foo__bar-1.0'
+    >>> canonical_name = 'foo-bar'
+    >>> _find_name_version_sep(egg_info, canonical_name)
+    8
+    """
+    # Project name and version must be separated by one single dash. Find all
+    # occurrences of dashes; if the string in front of it matches the canonical
+    # name, this is the one separating the name and version parts.
+    for i, c in enumerate(egg_info):
+        if c != "-":
+            continue
+        if canonicalize_name(egg_info[:i]) == canonical_name:
+            return i
+    raise ValueError("{} does not match {}".format(egg_info, canonical_name))
+
+
+def _egg_info_matches(egg_info, canonical_name):
+    # type: (str, str) -> Optional[str]
+    """Pull the version part out of a string.
+
+    :param egg_info: The string to parse. E.g. foo-2.1
+    :param canonical_name: The canonicalized name of the package this
+        belongs to.
+    """
+    try:
+        version_start = _find_name_version_sep(egg_info, canonical_name) + 1
+    except ValueError:
+        return None
+    version = egg_info[version_start:]
+    if not version:
+        return None
+    return version
+
+
+def _determine_base_url(document, page_url):
+    """Determine the HTML document's base URL.
+
+    This looks for a ``<base>`` tag in the HTML document. If present, its href
+    attribute denotes the base URL of anchor tags in the document. If there is
+    no such tag (or if it does not have a valid href attribute), the HTML
+    file's URL is used as the base URL.
+
+    :param document: An HTML document representation. The current
+        implementation expects the result of ``html5lib.parse()``.
+    :param page_url: The URL of the HTML document.
+    """
+    for base in document.findall(".//base"):
+        href = base.get("href")
+        if href is not None:
+            return href
+    return page_url
+
+
+def _get_encoding_from_headers(headers):
+    """Determine if we have any encoding information in our headers.
+    """
+    if headers and "Content-Type" in headers:
+        content_type, params = cgi.parse_header(headers["Content-Type"])
+        if "charset" in params:
+            return params['charset']
+    return None
+
+
+_CLEAN_LINK_RE = re.compile(r'[^a-z0-9$&+,/:;=?@.#%_\\|-]', re.I)
+
+
+def _clean_link(url):
+    # type: (str) -> str
+    """Makes sure a link is fully encoded.  That is, if a ' ' shows up in
+    the link, it will be rewritten to %20 (while not over-quoting
+    % or other characters)."""
+    return _CLEAN_LINK_RE.sub(lambda match: '%%%2x' % ord(match.group(0)), url)
+
+
+class HTMLPage(object):
+    """Represents one page, along with its URL"""
+
+    def __init__(self, content, url, headers=None):
+        # type: (bytes, str, MutableMapping[str, str]) -> None
+        self.content = content
+        self.url = url
+        self.headers = headers
+
+    def __str__(self):
+        return redact_password_from_url(self.url)
+
+    def iter_links(self):
+        # type: () -> Iterable[Link]
+        """Yields all links in the page"""
+        document = html5lib.parse(
+            self.content,
+            transport_encoding=_get_encoding_from_headers(self.headers),
+            namespaceHTMLElements=False,
+        )
+        base_url = _determine_base_url(document, self.url)
+        for anchor in document.findall(".//a"):
+            if anchor.get("href"):
+                href = anchor.get("href")
+                url = _clean_link(urllib_parse.urljoin(base_url, href))
+                pyrequire = anchor.get('data-requires-python')
+                pyrequire = unescape(pyrequire) if pyrequire else None
+                yield Link(url, self.url, requires_python=pyrequire)
+
+
+Search = namedtuple('Search', 'supplied canonical formats')
+"""Capture key aspects of a search.
+
+:attribute supplied: The user supplied package.
+:attribute canonical: The canonical package name.
+:attribute formats: The formats allowed for this package. Should be a set
+    with 'binary' or 'source' or both in it.
+"""

venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_internal/locations.py

@@ -0,0 +1,211 @@
+"""Locations where we look for configs, install stuff, etc"""
+from __future__ import absolute_import
+
+import os
+import os.path
+import platform
+import site
+import sys
+import sysconfig
+from distutils import sysconfig as distutils_sysconfig
+from distutils.command.install import SCHEME_KEYS  # type: ignore
+
+from pip._internal.utils import appdirs
+from pip._internal.utils.compat import WINDOWS, expanduser
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Any, Union, Dict, List, Optional  # noqa: F401
+
+
+# Application Directories
+USER_CACHE_DIR = appdirs.user_cache_dir("pip")
+
+
+DELETE_MARKER_MESSAGE = '''\
+This file is placed here by pip to indicate the source was put
+here by pip.
+
+Once this package is successfully installed this source code will be
+deleted (unless you remove this file).
+'''
+PIP_DELETE_MARKER_FILENAME = 'pip-delete-this-directory.txt'
+
+
+def write_delete_marker_file(directory):
+    # type: (str) -> None
+    """
+    Write the pip delete marker file into this directory.
+    """
+    filepath = os.path.join(directory, PIP_DELETE_MARKER_FILENAME)
+    with open(filepath, 'w') as marker_fp:
+        marker_fp.write(DELETE_MARKER_MESSAGE)
+
+
+def running_under_virtualenv():
+    # type: () -> bool
+    """
+    Return True if we're running inside a virtualenv, False otherwise.
+
+    """
+    if hasattr(sys, 'real_prefix'):
+        return True
+    elif sys.prefix != getattr(sys, "base_prefix", sys.prefix):
+        return True
+
+    return False
+
+
+def virtualenv_no_global():
+    # type: () -> bool
+    """
+    Return True if in a venv and no system site packages.
+    """
+    # this mirrors the logic in virtualenv.py for locating the
+    # no-global-site-packages.txt file
+    site_mod_dir = os.path.dirname(os.path.abspath(site.__file__))
+    no_global_file = os.path.join(site_mod_dir, 'no-global-site-packages.txt')
+    if running_under_virtualenv() and os.path.isfile(no_global_file):
+        return True
+    else:
+        return False
+
+
+if running_under_virtualenv():
+    src_prefix = os.path.join(sys.prefix, 'src')
+else:
+    # FIXME: keep src in cwd for now (it is not a temporary folder)
+    try:
+        src_prefix = os.path.join(os.getcwd(), 'src')
+    except OSError:
+        # In case the current working directory has been renamed or deleted
+        sys.exit(
+            "The folder you are executing pip from can no longer be found."
+        )
+
+# under macOS + virtualenv sys.prefix is not properly resolved
+# it is something like /path/to/python/bin/..
+# Note: using realpath due to tmp dirs on OSX being symlinks
+src_prefix = os.path.abspath(src_prefix)
+
+# FIXME doesn't account for venv linked to global site-packages
+
+site_packages = sysconfig.get_path("purelib")  # type: Optional[str]
+
+# This is because of a bug in PyPy's sysconfig module, see
+# https://bitbucket.org/pypy/pypy/issues/2506/sysconfig-returns-incorrect-paths
+# for more information.
+if platform.python_implementation().lower() == "pypy":
+    site_packages = distutils_sysconfig.get_python_lib()
+try:
+    # Use getusersitepackages if this is present, as it ensures that the
+    # value is initialised properly.
+    user_site = site.getusersitepackages()
+except AttributeError:
+    user_site = site.USER_SITE
+user_dir = expanduser('~')
+if WINDOWS:
+    bin_py = os.path.join(sys.prefix, 'Scripts')
+    bin_user = os.path.join(user_site, 'Scripts')
+    # buildout uses 'bin' on Windows too?
+    if not os.path.exists(bin_py):
+        bin_py = os.path.join(sys.prefix, 'bin')
+        bin_user = os.path.join(user_site, 'bin')
+
+    config_basename = 'pip.ini'
+
+    legacy_storage_dir = os.path.join(user_dir, 'pip')
+    legacy_config_file = os.path.join(
+        legacy_storage_dir,
+        config_basename,
+    )
+else:
+    bin_py = os.path.join(sys.prefix, 'bin')
+    bin_user = os.path.join(user_site, 'bin')
+
+    config_basename = 'pip.conf'
+
+    legacy_storage_dir = os.path.join(user_dir, '.pip')
+    legacy_config_file = os.path.join(
+        legacy_storage_dir,
+        config_basename,
+    )
+    # Forcing to use /usr/local/bin for standard macOS framework installs
+    # Also log to ~/Library/Logs/ for use with the Console.app log viewer
+    if sys.platform[:6] == 'darwin' and sys.prefix[:16] == '/System/Library/':
+        bin_py = '/usr/local/bin'
+
+site_config_files = [
+    os.path.join(path, config_basename)
+    for path in appdirs.site_config_dirs('pip')
+]
+
+venv_config_file = os.path.join(sys.prefix, config_basename)
+new_config_file = os.path.join(appdirs.user_config_dir("pip"), config_basename)
+
+
+def distutils_scheme(dist_name, user=False, home=None, root=None,
+                     isolated=False, prefix=None):
+    # type:(str, bool, str, str, bool, str) -> dict
+    """
+    Return a distutils install scheme
+    """
+    from distutils.dist import Distribution
+
+    scheme = {}
+
+    if isolated:
+        extra_dist_args = {"script_args": ["--no-user-cfg"]}
+    else:
+        extra_dist_args = {}
+    dist_args = {'name': dist_name}  # type: Dict[str, Union[str, List[str]]]
+    dist_args.update(extra_dist_args)
+
+    d = Distribution(dist_args)
+    # Ignoring, typeshed issue reported python/typeshed/issues/2567
+    d.parse_config_files()
+    # NOTE: Ignoring type since mypy can't find attributes on 'Command'
+    i = d.get_command_obj('install', create=True)  # type: Any
+    assert i is not None
+    # NOTE: setting user or home has the side-effect of creating the home dir
+    # or user base for installations during finalize_options()
+    # ideally, we'd prefer a scheme class that has no side-effects.
+    assert not (user and prefix), "user={} prefix={}".format(user, prefix)
+    i.user = user or i.user
+    if user:
+        i.prefix = ""
+    i.prefix = prefix or i.prefix
+    i.home = home or i.home
+    i.root = root or i.root
+    i.finalize_options()
+    for key in SCHEME_KEYS:
+        scheme[key] = getattr(i, 'install_' + key)
+
+    # install_lib specified in setup.cfg should install *everything*
+    # into there (i.e. it takes precedence over both purelib and
+    # platlib).  Note, i.install_lib is *always* set after
+    # finalize_options(); we only want to override here if the user
+    # has explicitly requested it hence going back to the config
+
+    # Ignoring, typeshed issue reported python/typeshed/issues/2567
+    if 'install_lib' in d.get_option_dict('install'):  # type: ignore
+        scheme.update(dict(purelib=i.install_lib, platlib=i.install_lib))
+
+    if running_under_virtualenv():
+        scheme['headers'] = os.path.join(
+            sys.prefix,
+            'include',
+            'site',
+            'python' + sys.version[:3],
+            dist_name,
+        )
+
+        if root is not None:
+            path_no_drive = os.path.splitdrive(
+                os.path.abspath(scheme["headers"]))[1]
+            scheme["headers"] = os.path.join(
+                root,
+                path_no_drive[1:],
+            )
+
+    return scheme