Install the stuff at the top of here: https://wiki.debian.org/Python/Packaging
Download the python package
Run
py2dsc -m \'Your Name \<Your e-mail\>\' package.tar.gz
If you get errors due to python eggs corresponding to other packages, you need to make sure those packages are installed before you do the process.
you may have to commit some things to the working tree
finally run
debuild -uc -us