The package rdopts contains a simple command to read options from a setuptools setup.cfg file. To install it, simply use easy_install or pip:
#easy_install
easy_install rdopts
#pip
pip install rdopts
For information on using this command once it's installed, run the following command (from any python setup.py file):
python setup.py rdopts -h
This will show you all command-line options for rdopts.