id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
12594	Meaningless exception when DEBUG=False and resolver.urlconf_module is None.	Yuri Baburov	Yuri Baburov	"Because of resolver.resolve500() can now fail due to urlconf_module set to None in django/core/handlers/base.py,
sometimes site developer doesn't get appropriate error message.
Instead developer gets message that handler500 is not found in urlconf module.

Problem is only in handler500 lookup, everything else goes well.

How to reproduce:
set DEBUG to False, comment out ROOT_URLCONF line.

I managed to find this problem it another way, but it will take some time to figure out how settings.py can be imported without errors, but get empty dir to LazySettings.

My suggested fix:
{{{
#!python
    def handle_uncaught_exception(self, request, resolver, exc_info):
        ...
        mail_admins(subject, message, fail_silently=True)
        # Return an HttpResponse that displays a friendly error message.

        if resolver.urlconf_module is None: # FIX LINE1: you aren't getting http500!
            raise exc_info[1], None, exc_info[2] # FIX LINE2: so we'll raise it raw.

        callback, param_dict = resolver.resolve500()
        return callback(request, **param_dict)

}}}"		closed	HTTP handling	1.2-alpha		fixed			Accepted	1	0	0	0	0	0