M2Crypto is a crypto and SSL toolkit for Python featuring the following:

RSA, DSA, DH, HMACs, message digests, symmetric ciphers (including AES).
SSL functionality to implement clients and servers.
HTTPS extensions to Python's httplib, urllib, and xmlrpclib.
Unforgeable HMAC'ing AuthCookies for web session management.
FTP/TLS client and server.
S/MIME.
ZServerSSL: A HTTPS server for Zope.
ZSmime: An S/MIME messenger for Zope.

It currently lives at
http://wiki.osafoundation.org/bin/view/Projects/MeTooCrypto. The original
M2Crypto homepage is at http://sandbox.rulemaker.net/ngps/m2/.