configurable - Class integration with config files
Regular expressions as infix operations
pyTickets are light-weight symmetrically signed data containers with optional encryption, serialization and compression of their contents. Now includes an *alpha* DiffieHellman implementation. Do not trust it yet :-)
sqldict - You have a dict of unlimited capacity providing transparent object serialization, its up to you now.
typesafe - formal type asserting decorators
XNet - Your Swiss Army Pitchfork of Networking