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[Radomir Dopieralski <1210253@xxxxxxxxxxxxxxxxxx>]

I can still see the contradictory code in horizon/__init__.py. Should that be fixed too?
I mean, if we decide that we do require Dashboard, Panel and PanelGroup, then maybe we should remove the try-except and warnings? If we decide that they are optional after all, then we should remove the asserts?

Also, why asserts, when using __all__ also makes flake8 shut up and
actually is the idiomatic way of telling Python what those modules
should me exposed.

** Changed in: horizon
       Status: Invalid => Incomplete

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https://bugs.launchpad.net/bugs/1210253

Title:
  With Havana 2 installed, Launching horizon UI results in the error "
  NameError: name 'Dashboard' is not defined"

Status in Ubuntu Cloud Archive:
  Fix Released
Status in OpenStack Dashboard (Horizon):
  Incomplete
Status in Openstack @ Cisco:
  In Progress
Status in “horizon” package in Ubuntu:
  Fix Released
Status in “horizon” source package in Saucy:
  Fix Released
Status in “horizon” package in Debian:
  New

Bug description:
  Hi All,

  I installed Havana2, after installation Launching horizon UI results in the error " NameError: name 'Dashboard' is not defined".
  Havana 2 was installed from "deb http://ppa.launchpad.net/ubuntu-cloud-archive/havana-staging/ubuntu precise main"

  Below is the log snippet from apache2:

  [Thu Aug 08 09:44:41 2013] [error] Warning: Could not import Horizon dependencies. This is normal during installation.
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45] mod_wsgi (pid=16851): Exception occurred processing WSGI script '/usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi'.
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45] Traceback (most recent call last):
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/django/core/handlers/wsgi.py", line 236, in __call__
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     self.load_middleware()
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py", line 45, in load_middleware
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     for middleware_path in settings.MIDDLEWARE_CLASSES:
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 53, in __getattr__
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     self._setup(name)
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 48, in _setup
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     self._wrapped = Settings(settings_module)
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 132, in __init__
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     mod = importlib.import_module(self.SETTINGS_MODULE)
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     __import__(name)
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../../openstack_dashboard/settings.py", line 182, in <module>
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     from local.local_settings import *
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/../../openstack_dashboard/local/local_settings.py", line 91, in <module>
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     from horizon.utils import secret_key
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]   File "/usr/lib/python2.7/dist-packages/horizon/__init__.py", line 55, in <module>
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45]     assert Dashboard
  [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45] NameError: name 'Dashboard' is not defined [Thu Aug 08 09:44:41 2013] [error] [client 10.1.6.45] File does not exist: /var/www/favicon.ico

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