from time import sleep

from random import choice

def display_board(board):

# The function accepts one parameter containing the board's current status

# and prints it out to the console.

return '''

+--------+--------+--------+

| | | |

| {} | {} | {} |

| | | |

+--------+--------+--------+

| | | |

| {} | {} | {} |

| | | |

+--------+--------+--------+

| | | |

| {} | {} | {} |

| | | |

+--------+--------+--------+

'''.format(board[0][0],board[0][1],board[0][2],board[1][0],board[1][1],board[1][2],board[2][0],board[2][1],board[2][2])

def enter_move(board):

# The function accepts the board's current status, asks the user about their move,

# checks the input, and updates the board according to the user's decision.

valid = []

for x in range(len(board)):

for y in board[x]:

if y != 'x' and y != 'o':

valid.append(y)

print('valid moves ', valid)

try:

p_move = int(input('Enter your move: '))

for x in range(len(board)):

for y in board[x]:

if (p_move in valid) and (y == p_move):

row = x

col = board[x].index(y)

board[row][col] = 'o'

print(display_board(board))

return True

except:

print('Invalid Entry, ', p_move,' Miss a turn')

sleep(3)

print(display_board(board))

return False

def com_move(board):

valid = []

for x in range(len(board)):

for y in board[x]:

if y != 'x' and y != 'o':

valid.append(y)

print('valid moves ', valid)

c_move = choice(valid)

print('Computer moves: ',c_move)

sleep(2)

try:

for x in range(len(board)):

for y in board[x]:

if (c_move in valid) and (y == c_move):

row = x

col = board[x].index(y)

board[row][col] = 'x'

print(display_board(board))

return True

except:

print('Invalid Entry, ', c_move,' Miss a turn')

sleep(3)

print(display_board(board))

return True

def make_list_of_free_fields(board):

# The function browses the board and builds a list of all the free squares;

# the list consists of tuples, while each tuple is a pair of row and column numbers.

#valid = []

valid_t = []

for x in range(len(board)):

for y in board[x]:

if y != 'x' and y != 'o':

#valid.append(y)

row = x

col = board[x].index(y)

valid_t.append((row,col))

return valid_t

def victory_for(board, sign):

# The function analyzes the board's status in order to check if

# the player using 'O's or 'X's has won the game

if len(make_list_of_free_fields(board)) > 6:

return False

if sign == "o":

if board[0][0] == 'o' and board[1][0] == 'o' and board[2][0] == 'o': return True

if board[0][1] == 'o' and board[1][1] == 'o' and board[2][1] == 'o': return True

if board[0][2] == 'o' and board[1][2] == 'o' and board[2][2] == 'o': return True

if board[0][0] == 'o' and board[0][1] == 'o' and board[0][2] == 'o': return True

if board[1][0] == 'o' and board[1][1] == 'o' and board[1][2] == 'o': return True

if board[2][0] == 'o' and board[2][1] == 'o' and board[2][2] == 'o': return True

if board[0][0] == 'o' and board[1][1] == 'o' and board[2][2] == 'o': return True

if board[0][2] == 'o' and board[1][1] == 'o' and board[2][0] == 'o': return True

if sign == "x":

if board[0][0] == 'x' and board[1][0] == 'x' and board[2][0] == 'x': return True

if board[0][1] == 'x' and board[1][1] == 'x' and board[2][1] == 'x': return True

if board[0][2] == 'x' and board[1][2] == 'x' and board[2][2] == 'x': return True

if board[0][0] == 'x' and board[0][1] == 'x' and board[0][2] == 'x': return True

if board[1][0] == 'x' and board[1][1] == 'x' and board[1][2] == 'x': return True

if board[2][0] == 'x' and board[2][1] == 'x' and board[2][2] == 'x': return True

if board[0][0] == 'x' and board[1][1] == 'x' and board[2][2] == 'x': return True

if board[0][2] == 'x' and board[1][1] == 'x' and board[2][0] == 'x': return True

return False

def draw_move(board):

# The function draws the computer's move and updates the board.

if len(make_list_of_free_fields(board)) == 0:

return True

else: return False

def play_ttt():

board = [[1,2,3],[4,5,6],[7,8,9]]

status = True

print(display_board(board))

while status == True:

user = enter_move(board)

if user == True:

u_vic = victory_for(board, 'o')

if u_vic == True:

print('You Won')

status = False

continue

draw = draw_move(board)

if draw == True:

print('The game ended in a draw')

status = False

continue

com = com_move(board)

if com == True:

c_vic = victory_for(board, 'x')

if c_vic == True:

print('Computer Won')

status = False

continue

draw = draw_move(board)

if draw == True:

print('The game ended in a draw')

status = False

continue

play_ttt()