Hi, I think the problem comes from mod_wsgi. I had the same problem when virtualhost listen on multiple ports. Please look at this GH issue https://github.com/GrahamDumpleton/mod_wsgi/issues/206 and try this by https://github.com/GrahamDumpleton/mod_wsgi/issues/206#issuecomment-305019825 by Dumpleton.
The real issue : *isinstance(value, uuid.UUID) is failling because of the use of sub interpreters.* Details in the mod_wsgi documentation : http://modwsgi.readthedocs.io/en/develop/user-guides/processes-and-threading.html#python-sub-interpreters and http://modwsgi.readthedocs.io/en/develop/configuration-directives/WSGIApplicationGroup.html. That's what you should be looking for. -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/843eb539-a98a-4ed7-a59f-5cde56cc87db%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.