pyHIDS is a host-based intrusion detection system. It uses an RSA signature to check the integrity of its database. Alerts are written in the logs of the system, and can be sent via email to a list of users or on IRC channels (through the irker IRC client). You can define rules to specify files to be checked periodically.
PYBAG implements a portable bag and is intended for fast synchronization and backup. It lets you use a portable digital storage device to carry your electronic documents similar to the way you can use a bag to carry paper documents. You can synchronize the bag with your original files easily. If a synchronization conflict occurs, it will be reported. You can specify rules for automatic conflict resolution. With PYBAG, you can backup files and synchronize any changes made to the original files with the bag. The synchronization process will only copy changed files. The program is cross-platform and independent from the OS and filesystem. You may easily synchronize files between Windows and Linux, for example. Symbolic links are supported on all systems (if the OS or filesystem does not support symlinks, then they are emulated). This program has a GUI and a command line interface.
pybonjour provides a pure Python interface (via ctypes) to Apple Bonjour and compatible DNS-SD libraries (such as Avahi). It allows Python scripts to take advantage of Zero Configuration Networking (Zeroconf) to register, discover, and resolve services on both local and wide-area networks. Since pybonjour is implemented in pure Python, scripts that use it can easily be ported to Mac OS X, Windows, Linux, and other systems that run Bonjour.
pycms is a minimalist component-based Web Content Management System based on CherryPy. It has most of the goodies of Plone/Zope: Python instead of a PHP security mess, no MySQL can of worms, clean separation of code and content, and the ability to run nicely behind a Web server/cache/load balancer. In addition, it features plain text storage of all site contents and settings in JSON files, effortless theming, and a small memory footprint.
pydance is a dancing game written in Python, formerly named pyDDR. The idea is simple. There's a floor mat with arrows, and the game scrolls arrows up the screen to the beat while playing a song. When the arrows reach the top of the screen (not sooner and not later), the player hits the corresponding arrow on the pad, and given that it's hit on time with the beat, points are scored. Based on how well the dance is put together, s/he is graded at the end of the song. Both keyboard and mat play are supported.
pyDirStat is a small tool to view statistical information about a directory. It will generate a view of all files contained in a directory (and subdirectories) with rectangles. Each rectangular area is proportional to the file sizes. It's useful for viewing disk usage with graphics. It's a non-interactive command-line tool that will generate HTML or SVG or SWF files. On Windows, it also runs as a shell extension.