docopt : Command-line interface description language. docopt helps you define interface for your command-line app, and automatically generate parser for it.
cliff : Command Line Interface Formulation Framework. cliff is a framework for building command line programs. It uses plugins to define sub-commands, output ...
Data Science Toolkit : A collection of the best open data sets and open-source tools for data science, wrapped in an easy-to-use REST/JSON API with command line, Python and ...
Essentia : Open-source library and tools for audio and music analysis, description and synthesis
Cobra : Cobra is a library providing a simple interface to create powerful modern CLI interfaces similar to git & go tools.
Cobra is also an application that ...
Clint is a python module filled with a set of awesome tools for developing commandline applications.