broken imports in python3.3 + django 1.5

[danny]

Howdy,

In python 3.3 you no longer need __init__.py in directories to be
interpreted as package namespaces. In my source I have the following tree
src
/apps
/index
/mapping

I removed the __init__.py files as I should be able to, but imports broke.
Specifically:

/opt/python3.3.1/lib/python3.3/site-packages/django/utils/translation/trans_real.py(155)_fetch()
154 app = import_module(appname)
2-> 155 apppath =
os.path.join(os.path.dirname(upath(app.__file__)), 'locale')

notice the app.__file__. In python 3.3 modules are not required to have a
__file__ attribute.

So in particular, I was not able to execute
python3.3 manage.py shell because of the cryptic
*** AttributeError: 'module' object has no attribute '__file__'
which I traced to this line in the Django source.

I don't know if it appears anywhere else, but module.__file__ is no longer
robust in python 3.3.

The poor man's fix is to put the __init__.py's back in.
src
/apps
/index
__init__.py
/mapping
__init__.py

works just fine, but shouldn't be required.

This is on RHEL5.8, but I doubt that matters.

thanks,
Danny