Django, South and Name Conflicts

(Originally posted August 5, 2013)

I ran across an odd error when I was working on a messaging app. As you can imagine, I had a an app named messages. As usual with south, to create the migrations, we run

$ python schemamigration --initial messages
$ python migrate messages

With this, I saw the correct output from south and everything seemed fine… except I kept getting error messages that said that there weren’t tables created for other apps. After redoing the database a couple times, and getting different, but similar errors, I stepped back and looked at the output from syncdb. What I saw was that django.contrib.messages had been integrated into south. South apparently takes the name and matches it to the first match it finds in installed apps. Since this was listed above my messages app, I wasn’t seeing the migrations from my one. And I saw that there was no migration folder in the app like there should be.

After removing django.contrib.messages from installed apps (since I wasn’t using it anyway), the migrations worked and the errors stopped.

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