flask and flask_login - organizing code

问题

I am currently coding up a simple web application using flask and flask_login, and got stuck due to a code organisation problem.

import flask
import flask_login

app = flask.Flask(__name__)

login_manager = flask_login.LoginManager()
login_manager.init_app(app)

The above works. The problem arises because I want to separate authentication related code from the main flask application code. In other words, I want my_auth.py that imports flask_login and initializes the login_manager, and I want main.py to import my_auth, and NOT have to import flask_login.

The problem is that login_manager.init_app(app) requires the main flask app to be passed in, and this clear separation seems difficult. Thus my questions are:

1. Is what I am asking for even possible? If so, how?
2. If what I am asking for is not possible, what is currently accepted as the best practice in organising such code?

回答1:

You can do something like the following, if main.py and my_auth.py reside on same directory:

my_auth.py:

import flask_login

login_manager = flask_login.LoginManager()

main.py:

from flask import Flask
from my_auth import login_manager

app = Flask(__name__)
login_manager.init_app(app)

来源：https://stackoverflow.com/questions/38930604/flask-and-flask-login-organizing-code