Python has a warning system, and Django already uses it for things like deprecation notices.
I don't like error by default as an approach to this, but a warning (which is easy to ignore -- it doesn't break your code) would be fine. -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To post to this group, send email to django-developers@googlegroups.com. Visit this group at https://groups.google.com/group/django-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/CAL13Cg9FfQ4Fv3Mjvw-4qaL4d%3Dbgm1y5pWeYRfA%2BUcJqAymLdQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.