SlimerJS : A scriptable browser for Web developers
Browserling : Live interactive cross-browser testing
Chromeless : Chrome automation made simple. Runs locally or headless on AWS Lambda.
Chromeless can be used to...
Run 1000s of browser integration tests in paralle...
mock : A Python Mocking and Patching Library for Testing
TagUI : TagUI is a general purpose tool for automating web interactions
ghost.py is a webkit web client written in python.