Entries published on October 14, 2007

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Be careful with your URL patterns

Tonight in the Django IRC channel, someone stumbled across a seemingly-odd error when trying to use a generic view:

TypeError: object_list() got multiple values for keyword argument 'queryset'

The problem turned out to be the URL pattern which was routing to the generic view. Consider a simple example, as might be found in a weblog application:

from django.conf.urls.defaults import *
from weblog.models import Entry

info_dict = {
    'queryset': Entry.objects.all()
}

urlpatterns = ('',
    (r'^(index|weblog)/$', 'django.views.generic.list_detail.object_list', info_dict)
)

The idea here is that either of two different URLs — index/ or …

Entry published October 14, 2007. Read full entry.