Description:
A import error occur when building the Django documentation using "make html" command as showed in the Django documentation site.

Additional info:
* package version(s)
* config and/or log files etc.

Package version:
python-sphinx 0.5-1

Log:
Traceback (most recent call last):
File "/usr/bin/sphinx-quickstart", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources


Steps to reproduce:
Making Django documentation:
$ cd path/to/Django-1.0.2-final/docs/
$ make html
mkdir -p _build/html _build/doctrees
sphinx-build -b html -d _build/doctrees . _build/html
Traceback (most recent call last):
File "/usr/bin/sphinx-build", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources
make: ** [html] Erro 1

From sphinx:
$ sphinx-build
Traceback (most recent call last):
File "/usr/bin/sphinx-build", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

or

$ sphinx-quickstart
Traceback (most recent call last):
File "/usr/bin/sphinx-quickstart", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources