For some reason, I have a list that keeps getting modified despite being explicitly a deep copy. It appears to be unmodified as it goes through the loop, but it suddenly is modified once it exists? I must be missing something that pertains to Python's rules and logic, but I can't figure it out for the life of me.
def all_possible_states(self):
#creates many variations of a board from the available set of moves
to_return = [] #list of possible board states to return
#print(self.availible_moves)
list_to_copy = copy.deepcopy(self.availible_moves)
for item in self.availible_moves:
print('loop')
#append possible board state to list. set of availible moves for that board is one less. Done by removing item from that move list
to_return.append(board(self.player, copy.deepcopy(self.board.copy()), list_to_copy, self.plays, self.score, copy.deepcopy(item)))
#print(item)
print( self.avalible_moves) #shows the total set of moves. This is unmodified whenever it prints
print(list_to_copy)#deep copy of the original list. This is unmodified when it prints
print(to_return[len(to_return) - 1].availible_moves) #List of moves left availible for the board, this slowly shrinks for some reason each loop
print(self.availible_moves) #this is the original list, but it's not basically been cut all the way down for some reason
return to_return
