Week 10 - Stones game

oristone = 100

def repeat():
    game()


def checkint(varname):
    try:
        int(varname)
        return True
    except ValueError:
        return False

def playerinput(player):
    print '--------------------\nPlayer'+ str(player) + 'turn\n--------------------'
    stonetotake=raw_input('How many stone would you like to take ? : ')
    while checkint(stonetotake) == False :
        stonetotake = raw_input('Pls input a valid number : ')
    else:
        while int(stonetotake) <1 or int(stonetotake)  >5 or int(stonetotake) > stone:
            stonetotake = raw_input('Pls input a valid number : ')
            while checkint(stonetotake) == False :
                stonetotake = raw_input('Pls input a valid number : ')
        else:
            pass
        global tempstone
        tempstone=int(stonetotake)
        return int(stonetotake)

def game():
    global stone
    stone=oristone
    raw_input('Hit enter to start the game  ')
    print '\nStone pile : '+str(stone)
    while stone >0 :
        if stone - playerinput(1) >0:
            stone = stone - tempstone
            print 'Stone pile : '+str(stone)
            if stone - playerinput(2) >0:
                stone = stone - tempstone
                print 'Stone pile : '+str(stone)
            elif stone - tempstone == 0:
                print 'Player 2 wins!'
                stone = stone - tempstone
        elif stone - tempstone == 0:
            print 'Player 1 wins!'
            stone = stone - tempstone
    else:
        ans=raw_input("Do you want to play again? insert 'Y' if YES or press ENTER if NO : ")
        if ans == 'Y' :
            repeat()

repeat()