mock : A Python Mocking and Patching Library for Testing
docopt : Command-line interface description language
refurb : A tool for refurbishing and modernizing Python codebases.
docopt : Command-line interface description language. docopt helps you define interface for your command-line app, and automatically generate parser for it.
tox : Command line driven CI frontend and development task automation tool
At its core tox povides a convenient way to run arbitrary commands in isolated en...
sh (previously pbs) is a full-fledged subprocess interface for Python that allows you to call any program as if it were a function