Glances : Glances is a cross-platform curses-based system monitoring tool written in Python.
FireLogger : A sexy server logger console in Firebug
Locust : Locust is an easy-to-use, distributed, user load testing tool. It is intended for load-testing web sites (or other systems) and figuring out how many ...
ghost.py : ghost.py is a webkit web client written in python.
Flake8 : flake8 is a python tool that glues together pycodestyle, pyflakes, mccabe, and third-party plugins to check the style and quality of some python code....
sh (previously pbs) is a full-fledged subprocess interface for Python that allows you to call any program as if it were a function