I've uploaded a copy of servezip.py to a new home on GitHub.
You might find it useful by itself or just as a quick reminder of how to recurse directories the Python way.
README
Run with: python servezip.py
Point your browser at http://localhost:8000/ and the contents of the directory where you started servezip.py will be made available (including any subdirectories). If you want to download the contents of any particular directory, navigate to it and add the name of the zip file you want to create to the end of the URL.
For example, to download all files and subdirectories of the directory http://localhost:8000/foo/bar enter the url: http://localhost:8000/foo/bar/foobar.zip
The zip file can have any name you want, as long as there isn't a zip file in that directory with that name already (otherwise you'll just get the contents of the existing zip file).