Django throws ImproperlyConfigured error when loading URLconf on startup
I have a Django app running on a production server. It is handled with gunicorn
0.14.2 behind nginx. When I reload the app (by reloading the gunicorn workers),
I get this error:
---
Traceback (most recent call last):
File
"/opt/app/venv/myapp/lib/python2.6/site-packages/django/core/handlers/base.py",
line 101, in get_response
request.path_info)
File
"/opt/app/venv/myapp/lib/python2.6/site-packages/django/core/urlresolvers.py",
line 250, in resolve
for pattern in self.url_patterns:
File
"/opt/app/venv/myapp/lib/python2.6/site-packages/django/core/urlresolvers.py",
line 283, in _get_url_patterns
raise ImproperlyConfigured("The included urlconf %s doesn't have any
patterns in it" % self.urlconf_name)
ImproperlyConfigured: The included urlconf myapp.urls doesn't have any patterns
in it
---
Others with this problem have commonly noted that it occurs while using reverse
in a URLconf, but I am not using reverse in any URLconfs (nor are they used in
any third-party apps). Also, this error only occurs in production -- never in
development (using the Django dev server) or on my staging server (also using
gunicorn 0.14.2 behind nginx). It also doesn't seem to cause trouble with the
site at any other time then during reloads. And it only happens for the first
10-20 requests on the website (which makes me wonder if it's some sort of race
condition, perhaps).
Any ideas what's causing the problem?
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Re: getting back max date from a joined table for list_display
On Dec 16, 2010, at 3:53 AM, dan kirkland wrote:
> Hi, I'm new to python and django and need to join two tables together
> - the first table holds details about a customer and I think is
> probably passed as the obj parameter of the following function. The
> second is a CallBackRequest table that holds details of when I should
> next call a customer. The callback has a foreign key (customer_id) to
> the customer table. I want the customers and their next callback
> (based on max date) to be displayed in a list - see the list_display
> line. Note, there's a one-to-many relationship between customer and
> callbackrequest records.
>
> The details in the customer table are retrieved and displayed
> successfully in the list but the date of the next call back is blank.
> I'm almost certain it's to do with the filter but not sure how to join
> the foreign key of the callbackrequest with the primary key of the obj
> record. Almost certainly the pk reference is wrong as it's the foreign
> key I need anyway. The foreign key within callbackrequests is called
> customer_id.
What about this?
def next_call_back_due(self, obj):
call_records =
CallbackRequest.objects.filter(customer_id=obj.id).order_by('-call_back_date')
if call_records.count() > 0:
return call_records[0].call_back_date
else:
return None# Or whatever default you want to return
Michael Dippery
mdipp...@gmail.com | www.monkey-robot.com
smime.p7s
Description: S/MIME cryptographic signature
Why might a Django admin form hang (or, how can I diagnose the problem)?
I have a model tied to the admin. Whenever I try to add a new model instance, or update an existing one, the form hangs while trying to submit. Nothing is written to the log files, though. The models are nothing fancy, so they don't have any custom validation that may be causing, e.g., and infinite loop. Also, the hang only occurs on my production server, not on the staging server or my local development machine. Any ideas as to what might be causing the hang? Or, since that's probably hard to answer without all the specifics of my setup and application, what's the best way to diagnose the problem? Michael Dippery mdipp...@gmail.com | www.monkey-robot.com smime.p7s Description: S/MIME cryptographic signature
