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
2156	misleading error message when python2.3-sqlite2 is missing	HolgerSchurig	Adrian Holovaty	"== Problem ==
When the sqlite database python module is missing, I see a strange error message ""cannot import name backend"".

== How to reproduce ==
Create a brand new project with ""django-admin.py startproject test"", ""cd test"" and set
{{{
DATABASE_ENGINE = 'sqlite3'
DATABASE_NAME = '/tmp/sqlite3.db'
DATABASE_USER = ''
DATABASE_PASSWORD = ''
DATABASE_HOST = ''
DATABASE_PORT = ''
}}}
Now run ""python manage.py runserve"" and access ""http://127.0.0.1/admin/"" and you will see this strange error message
{{{
$ python manage.py runserver
Validating models...
0 errors found.

Django version 0.95 (post-magic-removal), using settings 'blog2.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
[14/Jun/2006 09:51:02] ""GET /admin/ HTTP/1.1"" 404 2051
Validating models...
Skipping validation because things aren't configured properly.
Django version 0.95 (post-magic-removal), using settings 'blog2.settings'
Development server is running at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Traceback (most recent call last):
  File ""/usr/lib/python2.3/site-packages/django/core/servers/basehttp.py"", line 272, in run
    self.result = application(self.environ, self.start_response)
  File ""/usr/lib/python2.3/site-packages/django/core/servers/basehttp.py"", line 615, in __call__
    return self.application(environ, start_response)
  File ""/usr/lib/python2.3/site-packages/django/core/handlers/wsgi.py"", line 140, in __call__
    self.load_middleware()
  File ""/usr/lib/python2.3/site-packages/django/core/handlers/base.py"", line 31, in load_middleware
    raise exceptions.ImproperlyConfigured, 'Error importing middleware %s: ""%s""' % (mw_module, e)
ImproperlyConfigured: Error importing middleware django.contrib.sessions.middleware: ""cannot import name backend""
[14/Jun/2006 09:51:40] ""GET /admin/ HTTP/1.1"" 500 780
}}}
As soon as I installed the Debian package ""python2.3-pysqlite2"" I got back a page which was more sane (moaning about a missing admin entry in urls.py).
"	defect	closed	Core (Management commands)		normal	worksforme			Unreviewed	0	0	0	0	0	0