setup.py and MANIFEST.in - duplicating inclusion of files?

[Aljosa Mohorovic]

the only way i can get to distribute template files when using "python
setup.py sdist" is to declare it both in setup.py and MANIFEST.in.

setup.py:
> package_data={'myapp':['templates/*.html', 'templates/admin/*.html'],}

MANIFEST.in:
> recursive-include myapp/templates *.html

am i doing something wrong or is this correct? if it's correct, why?

Aljosa Mohorovic