Tic Tac Toe in python

ticky_tacky.py

import pandas as pd

def check_equal(lst):
    if lst[0] != " ":
        return lst[1:] == lst[:-1]
    else:
        return False

def if_win(board):
    for i in range(3):
        if check_equal(list(board[i])) is True:
            return board[i][0]
        elif check_equal(list(board.loc[i])) is True:
            return board.loc[0]
    if check_equal([board[0][0], board[1][1], board[2][2]]) is True or check_equal([board[0][2], board[1][1], board[2][1]]) is True:
        return board[1][1]
    else:
        return False

def print_board(board):
    print("|".join(board.loc[0]))
    print("-+-+-")
    print("|".join(board.loc[1]))
    print("-+-+-")
    print("|".join(board.loc[2]))

def main():
    board = pd.DataFrame([[" " for i in range(3)] for i in range(3)])

    user1 = None

    while user1 is None:
        choice = input("User 1, what symbol you would like to pick? 'X' or 'Y'?\n: ")
        if choice == "X":
            user1, user2 = "X", "Y"
        elif choice == "Y":
            user1, user2 = "Y", "X"
            
    user = None
    
    while user is None:
        turn = input("User 1, you want to play first or User 2 will?\n'yes' or 'no'.\n: ")
        if turn == "yes":
            user = user1
        elif turn == "no":
            user = user2

    print_board(board)

    moves = 9
    while moves > 0:
        print("Turn for user {}".format(user))
        move = None
        while move is None:
            try:
                move = [int(n) for n in input("Pick a positon. Input coordinate with space between as sepertator.\n: ").split(" ")]
            except:
                print("Invalid Move.")
                
        if board[move[0]][move[1]] == " " and move[0] < 3 and move[1] < 3:
            board[move[0]][move[1]] = user
            print_board(board)
            any_winner = if_win(board)
            user = user2 if user == user1 else user1
            moves = moves - 1
            if any_winner is not False:
                print("{} wins!".format(any_winner))
                print("Game Over.")
                break
            else:
                pass
        else:
            print("Invalid Move.")

    if moves == 0:
        print("No winner, game over!")

    again = input("Wanna play again? 'yes' or 'no'.\n: ")
    if again == 'yes':
        main()

main()