Python Tic Tac Toe Game

tic-tac-toe.py

#!/usr/local/bin/python3

import random
import time

test_board = ['#', 'X', '0', 'X', '0', 'X', '0', 'X', '0', 'X']
game_board = ['#', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ']


def display_board(board):
    print('\n' * 100)
    print(board[7] + ' | ' + board[8] + ' | ' + board[9])
    print('---------')
    print(board[4] + ' | ' + board[5] + ' | ' + board[6])
    print('---------')
    print(board[1] + ' | ' + board[2] + ' | ' + board[3])


def player_input():
    pawns_set = False

    while pawns_set == False:
        p1 = input('Player 1: Do you want to be X or 0? ')
        if (p1 == 'X' or p1 == '0'):
            pawns_set = True
            if p1 == 'X':
                p2 = '0'
            else:
                p2 = 'X'

    print(f'Player 1 is {p1}\nPlayer 2 is {p2}')
    return (p1, p2)


def place_marker(board, marker, position):
    board[position] = str(marker)


def win_check(board, mark):
    return ((board[7] == mark and board[8] == mark and board[9] == mark)
            or  # across the top
            (board[4] == mark and board[5] == mark
             and board[6] == mark) or  # across the middle
            (board[1] == mark and board[2] == mark and board[3] == mark)
            or  # across the bottom
            (board[7] == mark and board[4] == mark
             and board[1] == mark) or  # down the middle
            (board[8] == mark and board[5] == mark and board[2] == mark)
            or  # down the middle
            (board[9] == mark and board[6] == mark
             and board[3] == mark) or  # down the right side
            (board[7] == mark and board[5] == mark and board[3] == mark)
            or  # diagonal
            (board[9] == mark and board[5] == mark and board[1] == mark)
            )  # diagonal


def choose_first():
    first = random.randrange(1, 3)
    print('Randomly choosing who goes first...\n')
    time.sleep(1)
    print(f'Player {first} goes first.\n')

    if first == 'X':
        return 'X'
    else:
        return '0'


def space_check(board, position):
    return board[position] == ' '


def full_board_check(board):
    for i in range(1, 10):
        if space_check(board, i):
            return False
    return True


def will_it_float(value):
    try:
        float(value)
        return True
    except ValueError:
        return False


def player_choice(board):
    position = 0

    while position not in [1, 2, 3, 4, 5, 6, 7, 8, 9
                           ] or not space_check(board, position):
        position = input('Choose your next position: (1-9) ')

        if will_it_float(position):
            position = int(position)

            if position not in range(1, 10):
                print('You must enter a number between 1-9.')
                continue
        else:
            print('You must enter a number between 1-9.')
            continue

    return position


def replay():
    return input(
        'Do you want to play again? Enter Yes or No: ').lower().startswith('y')


def init():
    print('Welcome to Tic Tac Toe!')

    while True:
        game_board = ['#', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ']
        player_input()
        whos_turn = choose_first()

        while True:
            selected_position = player_choice(game_board)
            place_marker(game_board, whos_turn, selected_position)
            display_board(game_board)

            win = win_check(game_board, whos_turn)
            if win:
                print(f'Player {whos_turn} wins!')
                break

            board_full = full_board_check(game_board)
            if board_full:
                print('No one wins.')
                break

            if whos_turn == 'X':
                whos_turn = '0'
            else:
                whos_turn = 'X'

        if not replay():
            break


init()