Django loaddata settings error - django

Question

When trying to use loaddata on my local machine (win/sqlite):
python django-admin.py loaddata dumpdata.json
I get the following error:
raise ImportError("Settings cannot be imported, because environment variable %s is undefined." % ENVIRONMENT_VARIABLE) ImportError: Settings cannot be imported, because environment variable DJANGO_SETTINGS_MODULE is undefined.
I am using djangoconfig app if that helps:
"""
Django-config settings loader.
"""
import os
CONFIG_IDENTIFIER = os.getenv("CONFIG_IDENTIFIER")
if CONFIG_IDENTIFIER is None:
CONFIG_IDENTIFIER = 'local'
# Import defaults
from config.base import *
# Import overrides
overrides = __import__(
"config." + CONFIG_IDENTIFIER,
globals(),
locals(),
["config"]
)
for attribute in dir(overrides):
if attribute.isupper():
globals()[attribute] = getattr(overrides, attribute)
projects>python manage.py loaddata dumpdata.json --settings=config.base
WARNING: Forced to run environment with LOCAL configuration.
Problem installing fixture 'dumpdata.json': Traceback
(most recent call last):
File "loaddata.py", line 174, in handle
obj.save(using=using)
...
File "C:\Python26\lib\site-packages\django\db\backends\sqlite3\base.py", line
234, in execute
return Database.Cursor.execute(self, query, params)
IntegrityError: columns app_label, model are not unique

Answer 1

Don't use django-admin.py for anything other than setting up an initial project. Once you have a project, use manage.py instead - it sets up the reference to your settings file.

Answer 2

syncdb will load content_types, you need to clear that table before loading data. Something like this:
c:\> sqlite3 classifier.db
sqlite> delete from django_content_type;
sqlite> ^Z
c:\> python django-admin.py loaddata dumpdata.json
Also, make sure you do not create a superuser, or any user, when you syncdb, as those are likely to also collide with your data fixture ...

Answer 3

There are two standard ways to provide your settings to Django.
Using set (or export on Unix) set DJANGO_SETTINGS_MODULE=mysite.settings
Alternatively as an option with django-admin.py --settings=mysite.settings
Django-config does things differently because it allows you to have multiple settings files. Django-config works with manage.py to specify which to use. You should use manage.py whenever possible; it sets up the environment. In your case try this where --settings points to the specific .py file you want to use from django-config's config folder.
django-admin.py loaddata dumpdata.json --settings=<config/settings.py>
Actually --settings wants python package syntax so maybe <mysite>.config.<your settings>.py