webapp.py 文件源码

def show_main_page(user=None):
    user = user or get_logged_in_user()
    if user is None:
        return template('login', null=None)
    heading = 'Posts from people you follow'
    posts = pubsub.posts_for_user(user)
    return dict(user=user, posts=posts, heading=heading, comb=comb)