#26939: Django 1.9.8 Sitemaps is broken due to "isinstance() arg 2 must be a
class,
type, or tuple of classes and types"
-------------------------------+--------------------
Reporter: xuchen81 | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 1.9
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------+--------------------
I am using Django version 1.9.8, and mezzanine version 4.1.0.
The following code failed:
{{{
from mezzanine.core.sitemaps import DisplayableSitemap
sitemaps = {"sitemaps": {"displayable": DisplayableSitemap, 'views':
SwiftypeSitemap}}
urlpatterns += patterns("django.contrib.sitemaps.views",
("^sitemap\.xml$", "sitemap", sitemaps))
}}}
The trace back:
{{{
TypeError at /sitemap.xml
isinstance() arg 2 must be a class, type, or tuple of classes and types
Request Method: GET
Request URL: https://xxxxxxxxxx.com:8787/sitemap.xml
Django Version: 1.9.8
Exception Type: TypeError
Exception Value:
isinstance() arg 2 must be a class, type, or tuple of classes and types
Exception Location:
/srv/xxxxxxxxxx/virtualenvs/corpsite/local/lib/python2.7/site-
packages/django/db/models/fields/related.py in get_default, line 908
Python Executable: /srv/appdynamics/virtualenvs/corpsite/bin/uwsgi
Python Version: 2.7.6
Python Path:
['.',
'',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/src/supervisor',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/lib/python2.7',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/lib/python2.7/plat-x86_64-linux-
gnu',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/lib/python2.7/lib-tk',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/lib/python2.7/lib-old',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/lib/python2.7/lib-dynload',
'/usr/lib/python2.7',
'/usr/lib/python2.7/plat-x86_64-linux-gnu',
'/usr/lib/python2.7/lib-tk',
'/srv/xxxxxxxxxx/virtualenvs/corpsite/local/lib/python2.7/site-packages',
'/srv/xxxxxxxxxx/www/private']
Server time: Fri, 22 Jul 2016 17:48:22 -0700
...
...
/srv/xxxxxxxxxx/virtualenvs/corpsite/local/lib/python2.7/site-
packages/django/db/models/fields/related.py in get_default
if isinstance(field_default, self.remote_field.model): ...
▶ Local vars
Variable Value
self: <django.db.models.fields.related.ForeignKey: site>
field_default: None
}}}
The problem is here: self.remote_field.model is not a type of class, but
unicode.
--
Ticket URL: <https://code.djangoproject.com/ticket/26939>
Django <https://code.djangoproject.com/>
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