LuaUnit is a popular unit-testing framework for Lua, with an interface typical of xUnit libraries (Python unittest, Junit, NUnit, ...). It supports several output formats (Text, TAP, JUnit, ...) to be used directly or work with Continuous Integration platforms (Jenkins, Maven, ...).
Node Version Manager - POSIX-compliant bash script to manage multiple active node.js versions
Flask extension to help writing external scripts for Flask applications
Whoosh indexing capabilities for Flask-SQLAlchemy, Flask-WhooshAlchemy plus some improvement