#21530: urls.py AttributeError: 'RegexURLPattern' object has no attribute
'app_name'
-------------------------------------+------------------------------------
Reporter: Damian.Myerscough@… | Owner: nobody
Type: Bug | Status: new
Component: Core (URLs) | Version: 1.6
Severity: Release blocker | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 1 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
-------------------------------------+------------------------------------
Changes (by bmispelon):
* needs_better_patch: => 1
* needs_tests: => 1
* needs_docs: => 0
* stage: Unreviewed => Accepted
* severity: Normal => Release blocker
Old description:
> The urls.py file does not support the ability of supplying one URL. When
> specifying one URL within the urls.py file you get the following error:-
>
> (nagios-api-env)dmyerscough-ltm:nagios_restful dmyerscough$ python
> manage.py runserver
> Validating models...
>
> 0 errors found
> November 29, 2013 - 09:53:03
> Django version 1.6, using settings 'nagios_restful.settings'
> Starting development server at http://127.0.0.1:8000/
> Quit the server with CONTROL-C.
> Traceback (most recent call last):
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py",
> line 85, in run
> self.result = application(self.environ, self.start_response)
> File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
> packages/django/contrib/staticfiles/handlers.py", line 67, in __call__
> return self.application(environ, start_response)
> File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
> packages/django/core/handlers/wsgi.py", line 206, in __call__
> response = self.get_response(request)
> File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
> packages/django/core/handlers/base.py", line 148, in get_response
> response = debug.technical_404_response(request, e)
> File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
> packages/django/views/debug.py", line 471, in technical_404_response
> and tried[0][0].app_name == tried[0][0].namespace == 'admin')):
> AttributeError: 'RegexURLPattern' object has no attribute 'app_name'
> [29/Nov/2013 09:53:06] "GET / HTTP/1.1" 500 59
>
> To reproduce this error you can do the following:
>
> 1. Edit the urls.py file and add the following:-
>
> from django.conf.urls import patterns, include, url
>
> urlpatterns = patterns('',
> url(r'^test/', 'nagios_api.views.comments', name='home'),
> )
>
> 2. Run your project and navigate to the web page and you get the above
> exception.
>
> I have created a Pull request on GitHub to fix the issue -
> https://github.com/django/django/pull/2006
New description:
The urls.py file does not support the ability of supplying one URL. When
specifying one URL within the urls.py file you get the following error:
{{{
(nagios-api-env)dmyerscough-ltm:nagios_restful dmyerscough$ python
manage.py runserver
Validating models...
0 errors found
November 29, 2013 - 09:53:03
Django version 1.6, using settings 'nagios_restful.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Traceback (most recent call last):
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py",
line 85, in run
self.result = application(self.environ, self.start_response)
File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
packages/django/contrib/staticfiles/handlers.py", line 67, in __call__
return self.application(environ, start_response)
File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
packages/django/core/handlers/wsgi.py", line 206, in __call__
response = self.get_response(request)
File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
packages/django/core/handlers/base.py", line 148, in get_response
response = debug.technical_404_response(request, e)
File "/Users/dmyerscough/nagios-api-env/lib/python2.7/site-
packages/django/views/debug.py", line 471, in technical_404_response
and tried[0][0].app_name == tried[0][0].namespace == 'admin')):
AttributeError: 'RegexURLPattern' object has no attribute 'app_name'
[29/Nov/2013 09:53:06] "GET / HTTP/1.1" 500 59
}}}
To reproduce this error you can do the following:
1. Edit the urls.py file and add the following:
{{{#!python
from django.conf.urls import patterns, include, url
urlpatterns = patterns('',
url(r'^test/', 'nagios_api.views.comments', name='home'),
)
}}}
2. Run your project and navigate to the web page and you get the above
exception.
I have created a Pull request on GitHub to fix the issue -
https://github.com/django/django/pull/2006
--
Comment:
Hi,
I can indeed reproduce this issue when the root urlconf only contains one
non-empty pattern.
The urlconf itself works (I can access my view by navigating to the
correct URL) but the problem is in the debug view.
If I try to access a URL that's not mapped to anything, the debug view is
triggered and the reported exception occurs.
Note that this only affects the 1.6 and master branch, and that this
regression was introduced by commit
3f1c7b70537330435e2ec2fca9550f7b7fa4372e.
As for your patch, it does seem to fix the issue and it even passes the
full test suite but it seems wrong to just be removing code.
In any case, a full patch will also require a regression testcase so I'm
marking this as `patch needs improvement`.
Thanks.
--
Ticket URL: <https://code.djangoproject.com/ticket/21530#comment:1>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
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