PyMETAR is a Python module that provides easy access to NOAA's METAR weather reports.
avt is a collection of command line tools for aviation. They allow you to get METARs, TAFs, sunrise and sunset, and geo info, and decode IATA/ICAO airports, airline codes, aircraft tail codes, and aircraft names.
A non-graphical .NET Project management component which enables .NET applications to read, write, and manage Project documents without utilizing Microsoft Project.
A library for making high-quality scientific graphics.