parapin makes it easy to write C code under Linux that controls individual pins on a PC parallel port. This kind of control is very useful for electronics projects that use the PC's parallel port as a generic digital I/O interface. Parapin goes to great lengths to insulate the programmer from the somewhat complex parallel port programming interface provided by the PC hardware, and comes as a user-space C library, or linked as part of a Linux kernel module.
SimpleXML for PHP 4 is a class that can be used to load XML documents under PHP 4 like the PHP 5 SimpleXML extension. It can load and parse a XML document file like the simple_xml_load function. The class reorganizes the parsed document nodes to return a document structure identical to the result of the simple_load_file function.
xpython is a bundle that includes the Python interpreter and runtime and a number of libraries. It can be compiled into a single binary, thus simplifying software distributions without proper package management. The binary contains Python, wxWindows, SQLite, and a number of useful modules.
GUPnP is an object-oriented open source framework for creating UPnP devices and control points, written in C using GObject and libsoup. The GUPnP API is intended to be easy to use, efficient, and flexible. The GUPnP framework consists of two libraries. GSSDP implements resource discovery and announcement over SSDP, and GUPnP implements the UPnP specification: resource announcement and discovery, description, control, event notification, and presentation (basic Web server functionality through libsoup). GUPnP does not include helpers for construction or control of specific standardized resources (e.g. MediaServer); this is left for higher level libraries utilizing the GUPnP framework.