date calculations ala Perl's Date::Manip?

[Lance E Sloan]

I've been using Perl for a while and I'm now learning
Python.  I'm looking for a Python module that provides
the same fancy date calculations as Perl's Date::Manip.
What would you recommend?

I would appreciate it if responses to this article are
CC'ed to lsloan00 at my-deja.com as well as posted to this
newsgroup.  My newsserver is unreliable and I'd hate to
miss a response.

Thank you in advance!