python-fchksum is a module used to find checksums of files (or stdin). It supports md5, crc32, cksum, bsd-style sum, and sysv-style sum. The advantage of using fchksum over the Python md5 and zlib(.crc32) modules is both ease of use and speed. You only need to tell it the filename, and the work is done by C code.
Zorp is a proxy firewall suite with its core architecture is built around today's security demands: it uses application level proxies, is modular and component based, uses a script language to describe policy decisions, makes it possible to monitor encrypted traffic, lets you override client actions, and lets you protect your servers with its built in IDS capabilities.
VeePee is aimed at KDE and GNOME application developers and allows you to easily embed Python as a GUI-enabled scripting language in your application. Users benefit from a common scripting language allowing them to develop scripting skills that are re-usable with all their applications. The same VeePee script uses KDE widgets when run from a KDE application, and GNOME widgets when run from a GNOME application.