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.

For more information, go here.