It is by Andrew Dalke of Dalke Scientific, a company that develops Python tools for science:
http://www.dalkescientific.com/company.html
I saw PyRSS2Gen used on this blog:
http://blaag.haard.se/
- Vasudev Ram
www.dancingbison.com