This is a game of tic-tac-toe developed for Recurse Center's application.

tic-tac-toe.py

#!/usr/bin/python
#A game of tic-tac-toe for Recurse Center
#Instead of crosses and zeros, I've used 0's and 1's to depict player-0 and player-1 respectively

import os


def display():
    '''
    This function displays the board
    and refreshes the view everytime it's called
    '''
    os.system('clear')
    print("Cells are numbered frorm 0-8 in the following fashion")
    for i in range(9):
        print(i, end=' ')
        if (i+1)%3 == 0:
            print("\n")
    print("Now, here is your board:")
    for i in range(9):
        print(board[i], end=' ')
        if (i+1)%3 == 0:
            print("\n")


def checkStatus():
    '''
    This checks the status of the board and 
    returns the winner if someone has won
    else returns False
    '''
    winConditions = [
            {0,1,2}, {3,4,5}, {6,7,8}, 
            {0,4,8}, {2,4,6}, {0,3,6}, 
            {1,4,7}, {2,5,8}
            ]

    for player in range(2):
        if player in board:
            indices = [i for i, x in enumerate(board) if x == player]
            for cond in winConditions:
                if cond <= set(indices):
                    return player

    return False


def updateBoard(player, position):
    '''
    This updates the board
    If the board can't be updated, it returns False
    '''
    if board[position] != '_':
        return False
    else:
        board[position] = player
        display()
        return True


def takeInput(player):
    while True: 
        try:
            position = int(input(f"Player-{player} Turn (type a number between 0 to 8): "))
            if updateBoard(player, position):
                break
            else:
                print("Position already occupied. Please enter again.")
        except ValueError:
            print("Enter a number from 0-8")

    status = checkStatus()
    return status


def runGame():
    while True:
        for i in range(2):
            response = takeInput(i) 
            if response is not False:
                print(f"And the winner is player-{response}")
                return


if __name__ == '__main__':
    board = ['_']*9
    display()
    try:
        runGame()
    except KeyboardInterrupt:
        print('interrupted!')
    print("The game has ended")