provider.oauth2 seems not to appear when added from pip on settings.py

[ghost]

Traceback (most recent call last):
File "manage.py", line 10, in
execute_from_command_line(sys.argv)
File "/Library/Python/2.7/site-packages/django/core/management/init.py", line 350, in execute_from_command_line
utility.execute()
File "/Library/Python/2.7/site-packages/django/core/management/init.py", line 324, in execute
django.setup()
File "/Library/Python/2.7/site-packages/django/init.py", line 18, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Library/Python/2.7/site-packages/django/apps/registry.py", line 85, in populate
app_config = AppConfig.create(entry)
File "/Library/Python/2.7/site-packages/django/apps/config.py", line 90, in create
module = import_module(entry)
File "/usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/init.py", line 37, in import_module
import(name)
File "/Library/Python/2.7/site-packages/provider/oauth2/init.py", line 1, in
import backends
File "/Library/Python/2.7/site-packages/provider/oauth2/backends.py", line 2, in
from .forms import ClientAuthForm, PublicPasswordGrantForm
File "/Library/Python/2.7/site-packages/provider/oauth2/forms.py", line 10, in
from .models import Client, Grant, RefreshToken
File "/Library/Python/2.7/site-packages/provider/oauth2/models.py", line 23, in
class Client(models.Model):
File "/Library/Python/2.7/site-packages/django/db/models/base.py", line 94, in new
app_config = apps.get_containing_app_config(module)
File "/Library/Python/2.7/site-packages/django/apps/registry.py", line 239, in get_containing_app_config
self.check_apps_ready()
File "/Library/Python/2.7/site-packages/django/apps/registry.py", line 124, in check_apps_ready
raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

[sanderroosendaal]

Same symptom here.

[ghost]

same here

[horriblyUnpythonic]

Same

[RahulDwiwedi]

getting same error .....plz help...