ImportError cannot import name

Question

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  lt module gt      from mod login import mod login   File  mod login py   line 5  in  lt module gt      from app import app   File  app py   line 2  in  lt module gt      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

User · Accepted Answer

The problem is that you have a circular import: in app.py

from mod_login import mod_login

in mod_login.py

from app import app

This is not permitted in Python. See Circular import dependency in Python for more info. In short, the solution are

either gather everything in one big file
delay one of the import using local import

User · Answer

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

User · Answer

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

User · Answer

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

[python] ImportError: cannot import name

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