id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
29169	Upgrade django 1.8 to 1.9	Olivetree	nobody	"I am upgrading from django 1.8.4 to 1.9.13. I installed django 1.9.3 and added to my settings 

{{
import django 
django.setup()
}}}

My application no longer works, it displays the following error:
{{{
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f9c9655b158>
Traceback (most recent call last):
  File ""/usr/local/lib/python3.4/dist-packages/django/utils/autoreload.py"", line 226, in wrapper
    fn(*args, **kwargs)
  File ""/usr/local/lib/python3.4/dist-packages/django/core/management/commands/runserver.py"", line 116, in inner_run
    self.check(display_num_errors=True)
  File ""/usr/local/lib/python3.4/dist-packages/django/core/management/base.py"", line 426, in check
    include_deployment_checks=include_deployment_checks,
  File ""/usr/local/lib/python3.4/dist-packages/django/core/checks/registry.py"", line 75, in run_checks
    new_errors = check(app_configs=app_configs)
  File ""/usr/local/lib/python3.4/dist-packages/django/core/checks/urls.py"", line 13, in check_url_config
    return check_resolver(resolver)
  File ""/usr/local/lib/python3.4/dist-packages/django/core/checks/urls.py"", line 23, in check_resolver
    for pattern in resolver.url_patterns:
  File ""/usr/local/lib/python3.4/dist-packages/django/utils/functional.py"", line 33, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File ""/usr/local/lib/python3.4/dist-packages/django/core/urlresolvers.py"", line 417, in url_patterns
    patterns = getattr(self.urlconf_module, ""urlpatterns"", self.urlconf_module)
  File ""/usr/local/lib/python3.4/dist-packages/django/utils/functional.py"", line 33, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File ""/usr/local/lib/python3.4/dist-packages/django/core/urlresolvers.py"", line 410, in urlconf_module
    return import_module(self.urlconf_name)
  File ""/usr/lib/python3.4/importlib/__init__.py"", line 109, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File ""<frozen importlib._bootstrap>"", line 2254, in _gcd_import
  File ""<frozen importlib._bootstrap>"", line 2237, in _find_and_load
  File ""<frozen importlib._bootstrap>"", line 2226, in _find_and_load_unlocked
  File ""<frozen importlib._bootstrap>"", line 1200, in _load_unlocked
  File ""<frozen importlib._bootstrap>"", line 1129, in _exec
  File ""<frozen importlib._bootstrap>"", line 1471, in exec_module
  File ""<frozen importlib._bootstrap>"", line 321, in _call_with_frames_removed
  File ""/home/eva/work/test_upgrade_django_to_1_11/be/centroproduto/urls.py"", line 7, in <module>
    from django.contrib.auth.views import login, logout
  File ""/usr/local/lib/python3.4/dist-packages/django/contrib/auth/views.py"", line 11, in <module>
    from django.contrib.auth.forms import (
  File ""/usr/local/lib/python3.4/dist-packages/django/contrib/auth/forms.py"", line 10, in <module>
    from django.contrib.auth.models import User
  File ""/usr/local/lib/python3.4/dist-packages/django/contrib/auth/models.py"", line 6, in <module>
    from django.contrib.contenttypes.models import ContentType
  File ""/usr/local/lib/python3.4/dist-packages/django/contrib/contenttypes/models.py"", line 161, in <module>
    class ContentType(models.Model):
  File ""/usr/local/lib/python3.4/dist-packages/django/db/models/base.py"", line 102, in __new__
    ""INSTALLED_APPS."" % (module, name)
RuntimeError: Model class django.contrib.contenttypes.models.ContentType doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
}}}
----

I can not even run migrations ...
In my settings I have:
{{{
(...)

import django
django.setup()

(...)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.admin',
    'myapp',
    #'debug_toolbar',
    'django_extensions',
    'corsheaders',
    'watson',
    'raven.contrib.django.raven_compat',
    #'django.contrib.admindocs',
    'django_mailbox',
    'django.contrib.postgres',
)

(...)
}}}
----

I'm using python3.4 and postgresql9.3"	Uncategorized	closed	contrib.contenttypes	1.9	Normal	invalid	upgrade, error, contenttypes, app_label, INSTALLED_APPS		Unreviewed	0	0	0	0	0	0