forked from s434596/CatOrNot
763 lines
27 KiB
Python
763 lines
27 KiB
Python
"""Utilities for writing code that runs on Python 2 and 3"""
|
|
|
|
# Copyright (c) 2010-2014 Benjamin Peterson
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in all
|
|
# copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
# SOFTWARE.
|
|
|
|
from __future__ import absolute_import
|
|
|
|
import functools
|
|
import operator
|
|
import sys
|
|
import types
|
|
|
|
__author__ = "Benjamin Peterson <benjamin@python.org>"
|
|
__version__ = "1.8.0"
|
|
|
|
|
|
# Useful for very coarse version differentiation.
|
|
PY2 = sys.version_info[0] == 2
|
|
PY3 = sys.version_info[0] == 3
|
|
|
|
if PY3:
|
|
string_types = str,
|
|
integer_types = int,
|
|
class_types = type,
|
|
text_type = str
|
|
binary_type = bytes
|
|
|
|
MAXSIZE = sys.maxsize
|
|
else:
|
|
string_types = basestring,
|
|
integer_types = (int, long)
|
|
class_types = (type, types.ClassType)
|
|
text_type = unicode
|
|
binary_type = str
|
|
|
|
if sys.platform.startswith("java"):
|
|
# Jython always uses 32 bits.
|
|
MAXSIZE = int((1 << 31) - 1)
|
|
else:
|
|
# It's possible to have sizeof(long) != sizeof(Py_ssize_t).
|
|
class X(object):
|
|
def __len__(self):
|
|
return 1 << 31
|
|
try:
|
|
len(X())
|
|
except OverflowError:
|
|
# 32-bit
|
|
MAXSIZE = int((1 << 31) - 1)
|
|
else:
|
|
# 64-bit
|
|
MAXSIZE = int((1 << 63) - 1)
|
|
del X
|
|
|
|
|
|
def _add_doc(func, doc):
|
|
"""Add documentation to a function."""
|
|
func.__doc__ = doc
|
|
|
|
|
|
def _import_module(name):
|
|
"""Import module, returning the module after the last dot."""
|
|
__import__(name)
|
|
return sys.modules[name]
|
|
|
|
|
|
class _LazyDescr(object):
|
|
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
def __get__(self, obj, tp):
|
|
result = self._resolve()
|
|
setattr(obj, self.name, result) # Invokes __set__.
|
|
# This is a bit ugly, but it avoids running this again.
|
|
delattr(obj.__class__, self.name)
|
|
return result
|
|
|
|
|
|
class MovedModule(_LazyDescr):
|
|
|
|
def __init__(self, name, old, new=None):
|
|
super(MovedModule, self).__init__(name)
|
|
if PY3:
|
|
if new is None:
|
|
new = name
|
|
self.mod = new
|
|
else:
|
|
self.mod = old
|
|
|
|
def _resolve(self):
|
|
return _import_module(self.mod)
|
|
|
|
def __getattr__(self, attr):
|
|
_module = self._resolve()
|
|
value = getattr(_module, attr)
|
|
setattr(self, attr, value)
|
|
return value
|
|
|
|
|
|
class _LazyModule(types.ModuleType):
|
|
|
|
def __init__(self, name):
|
|
super(_LazyModule, self).__init__(name)
|
|
self.__doc__ = self.__class__.__doc__
|
|
|
|
def __dir__(self):
|
|
attrs = ["__doc__", "__name__"]
|
|
attrs += [attr.name for attr in self._moved_attributes]
|
|
return attrs
|
|
|
|
# Subclasses should override this
|
|
_moved_attributes = []
|
|
|
|
|
|
class MovedAttribute(_LazyDescr):
|
|
|
|
def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
|
|
super(MovedAttribute, self).__init__(name)
|
|
if PY3:
|
|
if new_mod is None:
|
|
new_mod = name
|
|
self.mod = new_mod
|
|
if new_attr is None:
|
|
if old_attr is None:
|
|
new_attr = name
|
|
else:
|
|
new_attr = old_attr
|
|
self.attr = new_attr
|
|
else:
|
|
self.mod = old_mod
|
|
if old_attr is None:
|
|
old_attr = name
|
|
self.attr = old_attr
|
|
|
|
def _resolve(self):
|
|
module = _import_module(self.mod)
|
|
return getattr(module, self.attr)
|
|
|
|
|
|
class _SixMetaPathImporter(object):
|
|
"""
|
|
A meta path importer to import six.moves and its submodules.
|
|
|
|
This class implements a PEP302 finder and loader. It should be compatible
|
|
with Python 2.5 and all existing versions of Python3
|
|
"""
|
|
def __init__(self, six_module_name):
|
|
self.name = six_module_name
|
|
self.known_modules = {}
|
|
|
|
def _add_module(self, mod, *fullnames):
|
|
for fullname in fullnames:
|
|
self.known_modules[self.name + "." + fullname] = mod
|
|
|
|
def _get_module(self, fullname):
|
|
return self.known_modules[self.name + "." + fullname]
|
|
|
|
def find_module(self, fullname, path=None):
|
|
if fullname in self.known_modules:
|
|
return self
|
|
return None
|
|
|
|
def __get_module(self, fullname):
|
|
try:
|
|
return self.known_modules[fullname]
|
|
except KeyError:
|
|
raise ImportError("This loader does not know module " + fullname)
|
|
|
|
def load_module(self, fullname):
|
|
try:
|
|
# in case of a reload
|
|
return sys.modules[fullname]
|
|
except KeyError:
|
|
pass
|
|
mod = self.__get_module(fullname)
|
|
if isinstance(mod, MovedModule):
|
|
mod = mod._resolve()
|
|
else:
|
|
mod.__loader__ = self
|
|
sys.modules[fullname] = mod
|
|
return mod
|
|
|
|
def is_package(self, fullname):
|
|
"""
|
|
Return true, if the named module is a package.
|
|
|
|
We need this method to get correct spec objects with
|
|
Python 3.4 (see PEP451)
|
|
"""
|
|
return hasattr(self.__get_module(fullname), "__path__")
|
|
|
|
def get_code(self, fullname):
|
|
"""Return None
|
|
|
|
Required, if is_package is implemented"""
|
|
self.__get_module(fullname) # eventually raises ImportError
|
|
return None
|
|
get_source = get_code # same as get_code
|
|
|
|
_importer = _SixMetaPathImporter(__name__)
|
|
|
|
|
|
class _MovedItems(_LazyModule):
|
|
"""Lazy loading of moved objects"""
|
|
__path__ = [] # mark as package
|
|
|
|
|
|
_moved_attributes = [
|
|
MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
|
|
MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
|
|
MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
|
|
MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
|
|
MovedAttribute("intern", "__builtin__", "sys"),
|
|
MovedAttribute("map", "itertools", "builtins", "imap", "map"),
|
|
MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
|
|
MovedAttribute("reload_module", "__builtin__", "imp", "reload"),
|
|
MovedAttribute("reduce", "__builtin__", "functools"),
|
|
MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
|
|
MovedAttribute("StringIO", "StringIO", "io"),
|
|
MovedAttribute("UserDict", "UserDict", "collections"),
|
|
MovedAttribute("UserList", "UserList", "collections"),
|
|
MovedAttribute("UserString", "UserString", "collections"),
|
|
MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
|
|
MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
|
|
MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
|
|
|
|
MovedModule("builtins", "__builtin__"),
|
|
MovedModule("configparser", "ConfigParser"),
|
|
MovedModule("copyreg", "copy_reg"),
|
|
MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
|
|
MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
|
|
MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
|
|
MovedModule("http_cookies", "Cookie", "http.cookies"),
|
|
MovedModule("html_entities", "htmlentitydefs", "html.entities"),
|
|
MovedModule("html_parser", "HTMLParser", "html.parser"),
|
|
MovedModule("http_client", "httplib", "http.client"),
|
|
MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
|
|
MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
|
|
MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
|
|
MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
|
|
MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
|
|
MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
|
|
MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
|
|
MovedModule("cPickle", "cPickle", "pickle"),
|
|
MovedModule("queue", "Queue"),
|
|
MovedModule("reprlib", "repr"),
|
|
MovedModule("socketserver", "SocketServer"),
|
|
MovedModule("_thread", "thread", "_thread"),
|
|
MovedModule("tkinter", "Tkinter"),
|
|
MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
|
|
MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
|
|
MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
|
|
MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
|
|
MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
|
|
MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
|
|
MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
|
|
MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
|
|
MovedModule("tkinter_colorchooser", "tkColorChooser",
|
|
"tkinter.colorchooser"),
|
|
MovedModule("tkinter_commondialog", "tkCommonDialog",
|
|
"tkinter.commondialog"),
|
|
MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
|
|
MovedModule("tkinter_font", "tkFont", "tkinter.font"),
|
|
MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
|
|
MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
|
|
"tkinter.simpledialog"),
|
|
MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
|
|
MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
|
|
MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
|
|
MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
|
|
MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
|
|
MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
|
|
MovedModule("winreg", "_winreg"),
|
|
]
|
|
for attr in _moved_attributes:
|
|
setattr(_MovedItems, attr.name, attr)
|
|
if isinstance(attr, MovedModule):
|
|
_importer._add_module(attr, "moves." + attr.name)
|
|
del attr
|
|
|
|
_MovedItems._moved_attributes = _moved_attributes
|
|
|
|
moves = _MovedItems(__name__ + ".moves")
|
|
_importer._add_module(moves, "moves")
|
|
|
|
|
|
class Module_six_moves_urllib_parse(_LazyModule):
|
|
"""Lazy loading of moved objects in six.moves.urllib_parse"""
|
|
|
|
|
|
_urllib_parse_moved_attributes = [
|
|
MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
|
|
MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
|
|
MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
|
|
MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
|
|
MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
|
|
MovedAttribute("urljoin", "urlparse", "urllib.parse"),
|
|
MovedAttribute("urlparse", "urlparse", "urllib.parse"),
|
|
MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
|
|
MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
|
|
MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
|
|
MovedAttribute("quote", "urllib", "urllib.parse"),
|
|
MovedAttribute("quote_plus", "urllib", "urllib.parse"),
|
|
MovedAttribute("unquote", "urllib", "urllib.parse"),
|
|
MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
|
|
MovedAttribute("urlencode", "urllib", "urllib.parse"),
|
|
MovedAttribute("splitquery", "urllib", "urllib.parse"),
|
|
MovedAttribute("splittag", "urllib", "urllib.parse"),
|
|
MovedAttribute("splituser", "urllib", "urllib.parse"),
|
|
MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
|
|
MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
|
|
MovedAttribute("uses_params", "urlparse", "urllib.parse"),
|
|
MovedAttribute("uses_query", "urlparse", "urllib.parse"),
|
|
MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
|
|
]
|
|
for attr in _urllib_parse_moved_attributes:
|
|
setattr(Module_six_moves_urllib_parse, attr.name, attr)
|
|
del attr
|
|
|
|
Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
|
|
|
|
_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
|
|
"moves.urllib_parse", "moves.urllib.parse")
|
|
|
|
|
|
class Module_six_moves_urllib_error(_LazyModule):
|
|
"""Lazy loading of moved objects in six.moves.urllib_error"""
|
|
|
|
|
|
_urllib_error_moved_attributes = [
|
|
MovedAttribute("URLError", "urllib2", "urllib.error"),
|
|
MovedAttribute("HTTPError", "urllib2", "urllib.error"),
|
|
MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
|
|
]
|
|
for attr in _urllib_error_moved_attributes:
|
|
setattr(Module_six_moves_urllib_error, attr.name, attr)
|
|
del attr
|
|
|
|
Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
|
|
|
|
_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
|
|
"moves.urllib_error", "moves.urllib.error")
|
|
|
|
|
|
class Module_six_moves_urllib_request(_LazyModule):
|
|
"""Lazy loading of moved objects in six.moves.urllib_request"""
|
|
|
|
|
|
_urllib_request_moved_attributes = [
|
|
MovedAttribute("urlopen", "urllib2", "urllib.request"),
|
|
MovedAttribute("install_opener", "urllib2", "urllib.request"),
|
|
MovedAttribute("build_opener", "urllib2", "urllib.request"),
|
|
MovedAttribute("pathname2url", "urllib", "urllib.request"),
|
|
MovedAttribute("url2pathname", "urllib", "urllib.request"),
|
|
MovedAttribute("getproxies", "urllib", "urllib.request"),
|
|
MovedAttribute("Request", "urllib2", "urllib.request"),
|
|
MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
|
|
MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
|
|
MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("FileHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
|
|
MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
|
|
MovedAttribute("urlretrieve", "urllib", "urllib.request"),
|
|
MovedAttribute("urlcleanup", "urllib", "urllib.request"),
|
|
MovedAttribute("URLopener", "urllib", "urllib.request"),
|
|
MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
|
|
MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
|
|
]
|
|
for attr in _urllib_request_moved_attributes:
|
|
setattr(Module_six_moves_urllib_request, attr.name, attr)
|
|
del attr
|
|
|
|
Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
|
|
|
|
_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
|
|
"moves.urllib_request", "moves.urllib.request")
|
|
|
|
|
|
class Module_six_moves_urllib_response(_LazyModule):
|
|
"""Lazy loading of moved objects in six.moves.urllib_response"""
|
|
|
|
|
|
_urllib_response_moved_attributes = [
|
|
MovedAttribute("addbase", "urllib", "urllib.response"),
|
|
MovedAttribute("addclosehook", "urllib", "urllib.response"),
|
|
MovedAttribute("addinfo", "urllib", "urllib.response"),
|
|
MovedAttribute("addinfourl", "urllib", "urllib.response"),
|
|
]
|
|
for attr in _urllib_response_moved_attributes:
|
|
setattr(Module_six_moves_urllib_response, attr.name, attr)
|
|
del attr
|
|
|
|
Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
|
|
|
|
_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
|
|
"moves.urllib_response", "moves.urllib.response")
|
|
|
|
|
|
class Module_six_moves_urllib_robotparser(_LazyModule):
|
|
"""Lazy loading of moved objects in six.moves.urllib_robotparser"""
|
|
|
|
|
|
_urllib_robotparser_moved_attributes = [
|
|
MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
|
|
]
|
|
for attr in _urllib_robotparser_moved_attributes:
|
|
setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
|
|
del attr
|
|
|
|
Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
|
|
|
|
_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
|
|
"moves.urllib_robotparser", "moves.urllib.robotparser")
|
|
|
|
|
|
class Module_six_moves_urllib(types.ModuleType):
|
|
"""Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
|
|
__path__ = [] # mark as package
|
|
parse = _importer._get_module("moves.urllib_parse")
|
|
error = _importer._get_module("moves.urllib_error")
|
|
request = _importer._get_module("moves.urllib_request")
|
|
response = _importer._get_module("moves.urllib_response")
|
|
robotparser = _importer._get_module("moves.urllib_robotparser")
|
|
|
|
def __dir__(self):
|
|
return ['parse', 'error', 'request', 'response', 'robotparser']
|
|
|
|
_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
|
|
"moves.urllib")
|
|
|
|
|
|
def add_move(move):
|
|
"""Add an item to six.moves."""
|
|
setattr(_MovedItems, move.name, move)
|
|
|
|
|
|
def remove_move(name):
|
|
"""Remove item from six.moves."""
|
|
try:
|
|
delattr(_MovedItems, name)
|
|
except AttributeError:
|
|
try:
|
|
del moves.__dict__[name]
|
|
except KeyError:
|
|
raise AttributeError("no such move, %r" % (name,))
|
|
|
|
|
|
if PY3:
|
|
_meth_func = "__func__"
|
|
_meth_self = "__self__"
|
|
|
|
_func_closure = "__closure__"
|
|
_func_code = "__code__"
|
|
_func_defaults = "__defaults__"
|
|
_func_globals = "__globals__"
|
|
else:
|
|
_meth_func = "im_func"
|
|
_meth_self = "im_self"
|
|
|
|
_func_closure = "func_closure"
|
|
_func_code = "func_code"
|
|
_func_defaults = "func_defaults"
|
|
_func_globals = "func_globals"
|
|
|
|
|
|
try:
|
|
advance_iterator = next
|
|
except NameError:
|
|
def advance_iterator(it):
|
|
return it.next()
|
|
next = advance_iterator
|
|
|
|
|
|
try:
|
|
callable = callable
|
|
except NameError:
|
|
def callable(obj):
|
|
return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
|
|
|
|
|
|
if PY3:
|
|
def get_unbound_function(unbound):
|
|
return unbound
|
|
|
|
create_bound_method = types.MethodType
|
|
|
|
Iterator = object
|
|
else:
|
|
def get_unbound_function(unbound):
|
|
return unbound.im_func
|
|
|
|
def create_bound_method(func, obj):
|
|
return types.MethodType(func, obj, obj.__class__)
|
|
|
|
class Iterator(object):
|
|
|
|
def next(self):
|
|
return type(self).__next__(self)
|
|
|
|
callable = callable
|
|
_add_doc(get_unbound_function,
|
|
"""Get the function out of a possibly unbound function""")
|
|
|
|
|
|
get_method_function = operator.attrgetter(_meth_func)
|
|
get_method_self = operator.attrgetter(_meth_self)
|
|
get_function_closure = operator.attrgetter(_func_closure)
|
|
get_function_code = operator.attrgetter(_func_code)
|
|
get_function_defaults = operator.attrgetter(_func_defaults)
|
|
get_function_globals = operator.attrgetter(_func_globals)
|
|
|
|
|
|
if PY3:
|
|
def iterkeys(d, **kw):
|
|
return iter(d.keys(**kw))
|
|
|
|
def itervalues(d, **kw):
|
|
return iter(d.values(**kw))
|
|
|
|
def iteritems(d, **kw):
|
|
return iter(d.items(**kw))
|
|
|
|
def iterlists(d, **kw):
|
|
return iter(d.lists(**kw))
|
|
else:
|
|
def iterkeys(d, **kw):
|
|
return iter(d.iterkeys(**kw))
|
|
|
|
def itervalues(d, **kw):
|
|
return iter(d.itervalues(**kw))
|
|
|
|
def iteritems(d, **kw):
|
|
return iter(d.iteritems(**kw))
|
|
|
|
def iterlists(d, **kw):
|
|
return iter(d.iterlists(**kw))
|
|
|
|
_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
|
|
_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
|
|
_add_doc(iteritems,
|
|
"Return an iterator over the (key, value) pairs of a dictionary.")
|
|
_add_doc(iterlists,
|
|
"Return an iterator over the (key, [values]) pairs of a dictionary.")
|
|
|
|
|
|
if PY3:
|
|
def b(s):
|
|
return s.encode("latin-1")
|
|
def u(s):
|
|
return s
|
|
unichr = chr
|
|
if sys.version_info[1] <= 1:
|
|
def int2byte(i):
|
|
return bytes((i,))
|
|
else:
|
|
# This is about 2x faster than the implementation above on 3.2+
|
|
int2byte = operator.methodcaller("to_bytes", 1, "big")
|
|
byte2int = operator.itemgetter(0)
|
|
indexbytes = operator.getitem
|
|
iterbytes = iter
|
|
import io
|
|
StringIO = io.StringIO
|
|
BytesIO = io.BytesIO
|
|
else:
|
|
def b(s):
|
|
return s
|
|
# Workaround for standalone backslash
|
|
def u(s):
|
|
return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
|
|
unichr = unichr
|
|
int2byte = chr
|
|
def byte2int(bs):
|
|
return ord(bs[0])
|
|
def indexbytes(buf, i):
|
|
return ord(buf[i])
|
|
def iterbytes(buf):
|
|
return (ord(byte) for byte in buf)
|
|
import StringIO
|
|
StringIO = BytesIO = StringIO.StringIO
|
|
_add_doc(b, """Byte literal""")
|
|
_add_doc(u, """Text literal""")
|
|
|
|
|
|
if PY3:
|
|
exec_ = getattr(moves.builtins, "exec")
|
|
|
|
|
|
def reraise(tp, value, tb=None):
|
|
if value is None:
|
|
value = tp()
|
|
if value.__traceback__ is not tb:
|
|
raise value.with_traceback(tb)
|
|
raise value
|
|
|
|
else:
|
|
def exec_(_code_, _globs_=None, _locs_=None):
|
|
"""Execute code in a namespace."""
|
|
if _globs_ is None:
|
|
frame = sys._getframe(1)
|
|
_globs_ = frame.f_globals
|
|
if _locs_ is None:
|
|
_locs_ = frame.f_locals
|
|
del frame
|
|
elif _locs_ is None:
|
|
_locs_ = _globs_
|
|
exec("""exec _code_ in _globs_, _locs_""")
|
|
|
|
|
|
exec_("""def reraise(tp, value, tb=None):
|
|
raise tp, value, tb
|
|
""")
|
|
|
|
|
|
print_ = getattr(moves.builtins, "print", None)
|
|
if print_ is None:
|
|
def print_(*args, **kwargs):
|
|
"""The new-style print function for Python 2.4 and 2.5."""
|
|
fp = kwargs.pop("file", sys.stdout)
|
|
if fp is None:
|
|
return
|
|
def write(data):
|
|
if not isinstance(data, basestring):
|
|
data = str(data)
|
|
# If the file has an encoding, encode unicode with it.
|
|
if (isinstance(fp, file) and
|
|
isinstance(data, unicode) and
|
|
fp.encoding is not None):
|
|
errors = getattr(fp, "errors", None)
|
|
if errors is None:
|
|
errors = "strict"
|
|
data = data.encode(fp.encoding, errors)
|
|
fp.write(data)
|
|
want_unicode = False
|
|
sep = kwargs.pop("sep", None)
|
|
if sep is not None:
|
|
if isinstance(sep, unicode):
|
|
want_unicode = True
|
|
elif not isinstance(sep, str):
|
|
raise TypeError("sep must be None or a string")
|
|
end = kwargs.pop("end", None)
|
|
if end is not None:
|
|
if isinstance(end, unicode):
|
|
want_unicode = True
|
|
elif not isinstance(end, str):
|
|
raise TypeError("end must be None or a string")
|
|
if kwargs:
|
|
raise TypeError("invalid keyword arguments to print()")
|
|
if not want_unicode:
|
|
for arg in args:
|
|
if isinstance(arg, unicode):
|
|
want_unicode = True
|
|
break
|
|
if want_unicode:
|
|
newline = unicode("\n")
|
|
space = unicode(" ")
|
|
else:
|
|
newline = "\n"
|
|
space = " "
|
|
if sep is None:
|
|
sep = space
|
|
if end is None:
|
|
end = newline
|
|
for i, arg in enumerate(args):
|
|
if i:
|
|
write(sep)
|
|
write(arg)
|
|
write(end)
|
|
|
|
_add_doc(reraise, """Reraise an exception.""")
|
|
|
|
if sys.version_info[0:2] < (3, 4):
|
|
def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
|
|
updated=functools.WRAPPER_UPDATES):
|
|
def wrapper(f):
|
|
f = functools.wraps(wrapped)(f)
|
|
f.__wrapped__ = wrapped
|
|
return f
|
|
return wrapper
|
|
else:
|
|
wraps = functools.wraps
|
|
|
|
def with_metaclass(meta, *bases):
|
|
"""Create a base class with a metaclass."""
|
|
# This requires a bit of explanation: the basic idea is to make a dummy
|
|
# metaclass for one level of class instantiation that replaces itself with
|
|
# the actual metaclass.
|
|
class metaclass(meta):
|
|
def __new__(cls, name, this_bases, d):
|
|
return meta(name, bases, d)
|
|
return type.__new__(metaclass, 'temporary_class', (), {})
|
|
|
|
|
|
def add_metaclass(metaclass):
|
|
"""Class decorator for creating a class with a metaclass."""
|
|
def wrapper(cls):
|
|
orig_vars = cls.__dict__.copy()
|
|
slots = orig_vars.get('__slots__')
|
|
if slots is not None:
|
|
if isinstance(slots, str):
|
|
slots = [slots]
|
|
for slots_var in slots:
|
|
orig_vars.pop(slots_var)
|
|
orig_vars.pop('__dict__', None)
|
|
orig_vars.pop('__weakref__', None)
|
|
return metaclass(cls.__name__, cls.__bases__, orig_vars)
|
|
return wrapper
|
|
|
|
# Complete the moves implementation.
|
|
# This code is at the end of this module to speed up module loading.
|
|
# Turn this module into a package.
|
|
__path__ = [] # required for PEP 302 and PEP 451
|
|
__package__ = __name__ # see PEP 366 @ReservedAssignment
|
|
if globals().get("__spec__") is not None:
|
|
__spec__.submodule_search_locations = [] # PEP 451 @UndefinedVariable
|
|
# Remove other six meta path importers, since they cause problems. This can
|
|
# happen if six is removed from sys.modules and then reloaded. (Setuptools does
|
|
# this for some reason.)
|
|
if sys.meta_path:
|
|
for i, importer in enumerate(sys.meta_path):
|
|
# Here's some real nastiness: Another "instance" of the six module might
|
|
# be floating around. Therefore, we can't use isinstance() to check for
|
|
# the six meta path importer, since the other six instance will have
|
|
# inserted an importer with different class.
|
|
if (type(importer).__name__ == "_SixMetaPathImporter" and
|
|
importer.name == __name__):
|
|
del sys.meta_path[i]
|
|
break
|
|
del i, importer
|
|
# Finally, add the importer to the meta path import hook.
|
|
sys.meta_path.append(_importer)
|