AttributeError：'Flask'对象没有属性'login_manager' - Login_Manager - 编程

I am having issue with Login_manager in my application . The error is thrown here

我在我的应用程序中遇到Login_manager问题。这里抛出了错误

def authenticate(form):
    if form.validate_on_submit():
        try:
            user = session.query(User).filter(User.email == form.email.data).first()
        except :# models.DoesNotExist:
            flash("Your email or password does not match !", "error")
        else :
            if check_password_hash(user.password,form.password.data):
                login_user(user)
                flash("You've been logged in", "success")
                return redirect(url_for('index'))
            else :
                flash("Your email or password does not match !", "error")
    return render_template('login.html',form = form)

The issue is raise at

问题是提出来的

login_user(user)

login_user（用户）

my login_manager is configured below the autheticate as follows.

我的login_manager配置在authenticicate下面，如下所示。

if __name__ == '__main__':

    app.secret_key = 'Innalhamdulillah.nahmaduhu.taalanastainubihi.wanastagfiruh!'
    app.run(debug = DEBUG, host=HOST, port= PORT)

    login_manager = LoginManager()
    login_manager.init_app(app)
    login_manager.login_view = 'login'

    @login_manager.user_loader
    def load_user(userid):
        try:
            return session.query(User).filter(User.id == userid).first()
        except models.DoesNotExist :
            return None

and in my declaration

并在我的声明中

from flask.ext.login import LoginManager,login_user

Please how do i addressed this issue and what is the cause ? How do i better understand it ? I was suspecting my def load_user(userid): bcos i am not very much clear and this my first. Any help would be appreciated.

请问我该如何解决这个问题，原因是什么？我怎样才能更好地理解它？我怀疑我的def load_user（userid）：bcos我不是很清楚，这是我的第一次。任何帮助，将不胜感激。

1 个解决方案

#1

You run your app before initializing the LoginManager. So you should have:

在初始化LoginManager之前运行应用程序。所以你应该：

app.secret_key = 'xxxxyyyyyzzzzz'

login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = 'login'

app.run(debug = DEBUG, host=HOST, port= PORT)

AttributeError：'Flask'对象没有属性'login_manager' - Login_Manager

1 个解决方案

#1

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