tictactoe.py

import os

def move(side):
	illegal = 1
	while illegal:
		row = int(input("row: "))
		column = int(input("column: "))
		if board[row][column] == ' ':
			if (side % 2) == 1:
				board[row][column] = 'X'
			else:
				board[row][column] = 'O'
			illegal = 0
		else:
			print("Illegal move.")

def draw_board():
	os.system('cls')
	print("    0    1    2")
	for r, c in enumerate(board):
		print(r, c)

new_game = 1
a_points = 0
b_points = 0
while new_game:
	a_points, b_points = b_points, a_points
	board = [[' ', ' ', ' '],
			 [' ', ' ', ' '],
			 [' ', ' ', ' ']]

	draw_board()

	end = 0
	side = 1
	move_number = 0
	player_1 = 'A' if ((a_points + b_points) % 2 == 0) else 'B'
	player_2 = 'B' if ((a_points + b_points) % 2 == 0) else 'A'
	while not end:
		if side % 2 == 1:
			print("X's turn, who is Player {}.".format(player_1))
		else:
			print("O's turn, who is Player {}.".format(player_2))
		move(side)
		draw_board()
		# print("\n")
		for i in range(0, len(board)):
			# print(board[i])
			for j in range(0, len(board[i])):
				# print(board[i][j])
				if board[i][j] != ' ':
					if board[0][0] == board[1][1] == board[2][2] != ' ':
						end = 1
					elif board[0][2] == board[1][1] == board[2][0] != ' ':
						end = 1
					elif board[0][0] == board[0][1] == board[0][2] != ' ':
						end = 1
					elif board[1][0] == board[1][1] == board[1][2] != ' ':
						end = 1
					elif board[2][0] == board[2][1] == board[2][2] != ' ':
						end = 1
					elif board[0][0] == board[1][0] == board[2][0] != ' ':
						end = 1
					elif board[0][1] == board[1][1] == board[2][1] != ' ':
						end = 1
					elif board[0][2] == board[1][2] == board[2][2] != ' ':
						end = 1
		side += 1
		move_number += 1
		if move_number == 9:
			end = 1

	if move_number == 9:
		print("Draw.")
		a_points += 0.5
		b_points += 0.5

	elif side % 2 == 1:
		print("O won.")
		a_points += 1
	elif side % 2 == 0:
		print("X won.")
		b_points += 1
	print("Tally:\
		   Player A: {},\n \
		   Player B: {} points.".format(a_points, b_points))
	new_game = input("Would you like to play another game?")