I have two files app.py
and mod_login.py
app.py
from flask import Flask
from mod_login import mod_login
app = Flask(__name__)
app.config.update(
USERNAME='admin',
PASSWORD='default'
)
mod_login.py
# coding: utf8
from flask import Blueprint, render_template, redirect, session, url_for, request
from functools import wraps
from app import app
mod_login = Blueprint('mod_login', __name__, template_folder='templates')
And python return this error:
Traceback (most recent call last):
File "app.py", line 2, in <module>
from mod_login import mod_login
File "mod_login.py", line 5, in <module>
from app import app
File "app.py", line 2, in <module>
from mod_login import mod_login
ImportError: cannot import name mod_login
If I delete from app import app
, code will be work, but how I can get access to app.config
?
This can also happen if you've been working on your scripts and functions and have been moving them around (i.e. changed the location of the definition) which could have accidentally created a looping reference.
You may find that the situation is solved if you just reset the iPython kernal to clear any old assignments:
%reset
or menu->restart terminal
Instead of using local imports, you may import the entire module instead of the particular object. Then, in your app
module, call mod_login.mod_login
app.py
from flask import Flask
import mod_login
# ...
do_stuff_with(mod_login.mod_login)
mod_login.py
from app import app
mod_login = something
When this is in a python console if you update a module to be able to use it through the console does not help reset, you must use a
import importlib
and
importlib.reload (*module*)
likely to solve your problem
Source: Stackoverflow.com