"""Tictactoe game for 2 players"""


# Assign the array that will hold the tic-tac-toe values to null
choices = []

# Fill in the squares with numbers from 1 to 9
for x in range (0, 9) :
	choices.append(str(x + 1))

playerOneTurn = True
winner = False

# Display the Tic-tac-toe board
def printBoard() :
	print( '\n -----')
	print( '|' + choices[0] + '|' + choices[1] + '|' + choices[2] + '|')
	print( ' -----')
	print( '|' + choices[3] + '|' + choices[4] + '|' + choices[5] + '|')
	print( ' -----')
	print( '|' + choices[6] + '|' + choices[7] + '|' + choices[8] + '|')
	print( ' -----\n')

# Keep playing while there is still no winner
while not winner :
	printBoard()

	if playerOneTurn :
		print( "Player 1:")
	else :
		print( "Player 2:")

	# Allow the user to select a square
	choice = int(input(">> "))

	# If the user enters a value outside the range 1-10 display an error message and prompt the user to reenter again
	while (choice < 1) or (choice > 9):
	   print("Please enter a value between 1 and 10\n") 
	   choice = int(input(">> "))

	# If the user selects a square that already has an "X" or "O", display an error message and prompt the user to reenter again
	if choices[choice - 1] == 'X' or choices [choice-1] == 'O':
		print("illegal move, please try again")
		continue

	# Put an "X" or an "O" in the square that the user selected
	if playerOneTurn :
		choices[choice - 1] = 'X'
	else :
		choices[choice - 1] = 'O'

	# Check each row and column starting from column 1, row 1 to column 3 row 3 to see if there are three X's or three O's.
	for x in range (0, 3) :
		y = x * 3
		print(x," ",y)
		if (choices[y] == choices[(y + 1)] and choices[y] == choices[(y + 2)]) :
			winner = True
			printBoard()
		if (choices[x] == choices[(x + 3)] and choices[x] == choices[(x + 6)]) :
			winner = True
			printBoard()

	# Check each of the two diagonals to see if there are three Xs or three Os
	if((choices[0] == choices[4] and choices[0] == choices[8]) or 
	   (choices[2] == choices[4] and choices[4] == choices[6])) :
		winner = True
		printBoard()

	# Assign next player's turn
	playerOneTurn = not playerOneTurn 


print ("Player " + str(int(playerOneTurn + 1)) + " wins!\n")