VECT provides a framework for managing software releases. It is an abstraction layer on top of Depot primarily and is based on Carnegie Mellon U's "EMT"
The Abstract Large File (ALF) project is a portable library for writing files that can be larger than 2GB or contain holes on systems that don't natively support one or both properties.
The jnios module is a complete java/JNI implementation of the builtin python modules "os" and "posix" for use with the JPython environment. jnios allows the original os.py and posixpath.py/ntpath.py/...from CPython, to run under JPython.
Fileboy is an opensource, feature-rich, graphical file system explorer. It is mainly intended as a replacement for the Windows file explorer, but should be compatible with all other platforms that run python.