HolyGrail is an implementation of the GTD's next action list. In other words, it's a kind of todo list. It is composed of realms (contexts), quests (projects), and missions (todos). A realm groups missions, and generally represents a location or a situation, e.g. "at work", "at home", or "code". A mission is the next physical action to do to complete your goal. A quest is a succession of missions; it represents a goal. Every time what you are planning requires more than one next action, create a project.
Squires is a Python library which simplifies the creation of powerful self-documenting readline-based command line interfaces. Scripts using Squires have the following features in their interface: full readline bindings, tab completion of commands and their options, inline command help (which is accessed by pressing tab), option syntax validation, and hidden commands and options.
python-stdnum is a Python module to parse, validate, and reformat standard numbers and codes in different formats. It supports a large number of number formats, including: ISBN (International Standard Book Number), ISSN (International Standard Serial Number), BSN (Burgerservicenummer, the Dutch national identification number), EAN (International Article Number), SSN (U.S. Social Security Number), IMEI (International Mobile Equipment Identity), IBAN (International Bank Account Number), and more.
surl is a URL shortening command line application that supports various sites. It supports stdin or filename input. It grabs the URLs, converts them, and returns the same text that was used in the input. It is known to work with a wealth of services, such as bit.ly, tinyurl.com, and others.
bitstring is a Python module that helps to make the creation and analysis of binary data as simple and natural as possible. Objects can be constructed from integers (big and little endian), floats, hex, octal, binary, byte data, iterables, or files. They can be sliced, joined, reversed, packed, unpacked, inserted into, overwritten, and otherwise operated upon with simple functions or slice notation. They can also be parsed, searched, and navigated in, similar to a file or stream. Internally the data is efficiently stored as byte arrays. It is available for Python 2.6 and later (including Python 3).