git-flow Python Edition is a a pure Python implementation of git-flow. All sub-commands share a common back-end to ensure features behave the same, whatever branch-type they are working on. New workflow behavior can also be added easily by simply sub-classing existing ones. It also includes a comprehensive unit test suite, decent man pages, and HTML docs.
Pyramid is a small, powerful, and flexible set of Web development components that supersedes both Pylons 1. 0 and repoze.bfg. It can be used to write clean and fast applications, and supports plugging in a variety of components like storage, templating engines, and authentication mechanisms.