without class piece_moves

bishop.py

@@ -1,11 +1,9 @@
 from piece import Piece
 from board import Board
 from square import Square
-
+from abc import abstractmethod
 class Bishop(Piece):
-    def __init__(self, color):
-        super().__init__("bishop", color)
-
+    @abstractmethod
     def straightline_moves(self, piece, row, column, isvertical):
         if isvertical is True:
             self.direction = [

king.py

@@ -1,10 +1,9 @@
 from piece import Piece
 from board import Board
 from square import Square
+from abc import abstractmethod
 class King(Piece):
-    def __init__(self, color):
-        super().__init__("king", color)
-
+    @abstractmethod
     def king_moves(self, piece, row, column):
         self.direction = [
             (0, 1),

knight.py

@@ -1,10 +1,9 @@
 from piece import Piece
 from board import Board
 from square import Square
+from abc import abstractmethod
 class Knight(Piece):
-    def __init__(self, color):
-        super().__init__("knight", color)
-
+    @abstractmethod
     def knight_moves(self, piece, row, column):
         self.possible_moves = [
             (row + 2, column - 1),

move.py

@@ -88,9 +88,9 @@ class Move:
             pass
 
     def pawn_promotion(self, x, final_row, final_column):
-        if isinstance(x, Pawn):
+        if x.name == "pawn":
             if (final_row==0) or (final_row==7):
-                self.board.boardlist[final_row][final_column].piece = Queen(x.color)
+                x.name == "queen"
     def mat(self, x, final_row, final_column):
         if self.board.boardlist[final_row][final_column].has_piece():
             if self.board.boardlist[final_row][final_column].piece.name == 'king':
@@ -98,7 +98,7 @@ class Move:
                 #print(x)
                 #print(x.color)
                 #print(self.board.boardlist[final_row][final_column].piece.color)
-                self.board.boardlist[final_row][final_column].piece = x
+                #self.board.boardlist[final_row][final_column].piece = x
                 exit(0)
     @staticmethod
     def numbers_to_letters(number):

pawn.py

@@ -1,9 +1,9 @@
 from piece import Piece
 from board import Board
 from square import Square
+from abc import abstractmethod
 class Pawn(Piece):
-    def __init__(self, color):
-        super().__init__("pawn", color)
+    @abstractmethod
     def pawn_moves(self, piece, row, column):
         if piece.moved == True:
             self.steps = 1

queen.py

@@ -1,10 +1,9 @@
 from piece import Piece
 from board import Board
 from square import Square
+from abc import abstractmethod
 class Queen(Piece):
-    def __init__(self, color):
-        super().__init__("queen", color)
-
+    @abstractmethod
     def straightline_moves(self, piece, row, column, isvertical):
         if isvertical is True:
             self.direction = [

rook.py

@@ -1,10 +1,9 @@
 from piece import Piece
 from board import Board
 from square import Square
+from abc import abstractmethod
 class Rook(Piece):
-    def __init__(self, color):
-        super().__init__("rook", color)
-
+    @abstractmethod
     def straightline_moves(self, piece, row, column, isvertical):
         if isvertical is True:
             self.direction = [

square.py

@@ -20,11 +20,6 @@ class Square:
             return True
         else:
             return False
-    def empty_or_rival_knight(self, color):
-        if self.has_piece() is False or self.is_rival(color):
-            return True
-        else:
-            return False
     @staticmethod
     def on_board(*args):
         for arg in args: