Peggy helps you to create GTK applications that run out-of-the-egg. It offers functions to load resources (like .glade files, images, and locales) from a zipped or unzipped egg. It is a thin layer on top of setuptools and PyGtk. It doesn't do anything very fancy, but it can save you from reading some documentation.
PyMultimethods is a library that enables users to create multimethods (a.k.a. generic functions) in Python. In other words, you can create multiple versions of the same function/method. The one that is invoked depends on the runtime parameters. This is similar to polymorphism in the sense that the object type determines which version of the function is invoked. Multimethods go beyond the polymorphism found in conventional object oriented languages, however, because all parameters are taken into account (as opposed to only the "implied this", as in C++ or Java). PyMultimethods can also be used to "overload" a function or method.
Lumbricidae WORM (Widget Object Relational Mapper) is an SQLAlchemy binding for Webwidgets. SQLAlchemy presents database tables and rows as Python classes and objects. Webwidgets is a framework for writing Web applications as if they were desktop applications. WORM lets you easily map Webwidgets input fields, tables, and other widgets to database mapped classes, instances, and attributes. It requires the Argentum SQLAlchemy convenience library.
LEPL is a recursive descent parser library written in Python. It is based on parser combinator libraries popular in functional programming, but also exploits Python language features. Operators provide a friendly syntax, and the consistent use of generators supports full backtracking and resource management. Backtracking implies that a wide variety of grammars are supported; appropriate memoisation ensures that even left-recursive grammars terminate.
Relatorio is a Python opendocument templating library, based on Genshi. It provides a way to easily output severals kinds of files (odt, ods, png, svg, etc.) by using documents in any of the Open Document formats (and some others) as templates. It also includes a simple report repository.