Plotter is a GTK+ mathematical graph plotting application. It is written entirely in Python using the PyGtk bindings. Features of Plotter include plotting of cartesian, parametric, and polar equations. An unlimited number of plots can be displayed in individual colours. Plotter supports graph zooming and panning, and loading and saving of sets of graphs. New functions can easily be added from within the program.
Plucker is an offline Web and eBook viewer for Palm OS-based handheld devices and PDAs. It comes with Unix/Linux tools and conduits, and Windows and Mac OS X conduits that let you decide exactly what part of the Web you want to view on your PDA (as long as it's in standard HTML or text format). The requested Web pages are processed, compressed, and transferred to the PDA for viewing by the Plucker viewer.
PLWM (The Pointless Window Manager) is a highly modularised window manager written in Python. It has no configuration files; instead, you combine Python classes to make the perfect window manager for yourself. This is not a window manager for non-programmers. The feature list includes point-to-focus and sloppy-focus, outline move, resizing, deiconifying, views (extremely powerful workspaces), and multihead support. PLWM is controlled completely from the keyboard.
Pmw is a toolkit for building high-level compound widgets in Python using the Tkinter module. It consists of a set of base classes and a library of flexible and extensible megawidgets built on this foundation. These megawidgets include notebooks, comboboxes, selection widgets, paned widgets, scrolled widgets and dialog windows.
Pybliographer is a tool for managing bibliographic databases. It supports several bibliography formats (BibTeX, Refer, Medline, ISI, Ovid) and can be used for searching, editing, reformatting, etc, through its nice graphical interface for GNOME. Due to its nature, it can be extended to many uses (generating HTML pages according to bibliographic searches, etc). It is provided with sample scripts.