为什么我的Python GAE代码是异步的？

This is the code:

这是代码:

def create_game(user_id):
    game = classes.Games(user_id = user_id)
    game.put()

def get_game(user_id):
    game_query = classes.Games.gql('WHERE user_id = :1', user_id)

    game = False
    for item in game_query:
        game = item

    if not game:
        create_game(user_id)
        get_game(user_id)
    else:
        return game

def render_page(self):
    message = 'this is a game page<br>'.decode('utf-8')

    user = creditentials.get_user(self)
    if not user:
        self.redirect('/')
        return

    game = get_game(user.key().id())

    message += 'current game ID: '.decode('utf-8') + str(game.key().id())

    self.response.write(message)
def create_game(use