Django Models "IndexError: list index out of range" Pydev

Question

I have a Django project in Eclipse PyDev.

I have a file views.py which has the line:

from models import ingredient2

In models.py I have:

from django.db import models
class ingredient2(models.Model):
     ingredient     = models.CharField(max_length=200)

When I try to run the app I get the following error:

File "C:\Python27\lib\site-packages\django\db\models\base.py", line 54, in __new__
kwargs = {"app_label": model_module.__name__.split('.')[-2]}
IndexError: list index out of range

I did sync the database and started the server running.

I went into base.py and added 2 print statements (yes, I probably should not edit Django's files):

if getattr(meta, 'app_label', None) is None:
            # Figure out the app_label by looking one level up.
            # For 'django.contrib.sites.models', this would be 'sites'.
            model_module = sys.modules[new_class.__module__]
            print model_module #ADDED
            print model_module.__name__ #ADDED
            kwargs = {"app_label": model_module.__name__.split('.')[-2]}

They print out:

<module 'models' from 'C:\Users\Tine\workspace\slangen\slangen2\bolig\models.pyc'>

models

manage.py is contained within the bolig folder. I think the correct app label would be "bolig". The app worked several months ago and now, when I come back to it, something is not right. I have been creating other projects in PyDev.

This may be your same problem: http://stackoverflow.com/questions/4382032/defining-a-model-class-in-django-shell-fails — AJJ, Jan 07 '12 at 10:15

score 8 · Answer 1 · answered Feb 01 '13 at 19:57

8

Add a meta class with an app_label inside your model class definition:

class Foo:
    id = models.BigIntegerField(primary_key=True)
    class Meta:
        app_label = 'foo'

answered Feb 01 '13 at 19:57

Steve Robinson

81
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score 3 · Answer 2 · answered Feb 19 '15 at 20:25

3

I had something similar

instead of

from models import ingredient2

try :

from your_app_name.models import ingredient2

answered Feb 19 '15 at 20:25

wobbily_col

11,390
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score 0 · Answer 3 · edited Oct 06 '12 at 13:02

0

I was also getting the kwargs = {"app_label": model_module.__name__.split('.')[-2]} error when using PyDev. In my case, the project wasn't refreshed before I tried to run it. As soon as I refreshed it, all was well again.

edited Oct 06 '12 at 13:02

Nelson

49,283
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answered Oct 03 '12 at 12:32

Anonymous Joe

101

score 0 · Answer 4 · answered Apr 10 '13 at 17:34

0

I ran into this problem using Eclipse, Django and PyDev. I needed to have the application (instead of some .py file for example) selected in the PyDev Package Explorer (left panel) before clicking Run for everything to work properly.

answered Apr 10 '13 at 17:34

Zaky German

14,324
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score 0 · Accepted Answer · answered Feb 12 '12 at 08:14

0

Well, not really an answer, but... I ended up creating a new django project and then copying in my code. That fixed the problem.

answered Feb 12 '12 at 08:14

user984003

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score -1 · Answer 6 · answered Oct 17 '13 at 07:59

-1

in my case, models.py contains models

when I import models to other .py, say views.py it doesn't raise error when I run views.py

but when I run models.py, it raise the same error.

so I will just don't run in the models.py

answered Oct 17 '13 at 07:59

beginner

1

Django Models "IndexError: list index out of range" Pydev

6 Answers6