Django cannot import from app/models.py

Question

In my Django app (lets call it app) I have a number of files: views.py, models.py and I created my own utils.py.

Unfortunately, while I can include my models in my views.py file simply by saying

from models import *

In my utils.py file, if I try the same thing, and then work with a model, I get an exception Global name: MyModel is not defined. models.py does indeed include utils.py, and I understand this may be a circular dependcy, but it worked fine until I added a recent change. Is this the cause, if so is the only solution to refactor my utils file?

Raunak Agarwal · Accepted Answer · 2012-11-27 19:18:50Z

1

Well you already know it is because of mutual dependencies. The way around it would be to split the util file in to two so, that you could avoid circular imports by separating the parts where you are required to call the models.

Also, as suggested by Mipadi instead of using a global import statement you could simply make the import in the method scope

Moreover, it would really depend how you are trying to use the models. For instance, you could access the models by "app_name.class_name" but really depends on the context in which you want to use.

edited Nov 27, 2012 at 19:18

answered Nov 27, 2012 at 19:10

Raunak Agarwal

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2 Comments

mipadi Over a year ago

Or utils could import models at a narrower scope (such as just in a function) to avoid circular dependency issues.

Raunak Agarwal Over a year ago

Oh yes..forgot to mention that

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