This post explains the automatic testing setup for the WlTrace project. You can see a live demo for all tools described in this post at the WlTrace Github repo.

Recently I was in development of a Python project that supports both the regular Python 2.7 and also the PyPy environment. Here is how to setup the automatic testing environment using Tox and Travis-CI.

multiprocessing is a convenient library to take the advantage of multiple cores easily found in modern processes. The typical pattern is to spawn a bunch of worker processes, and let them consume the data from a queue. However, when debugging, I usually found myself attempting to terminate the script using Ctrl-C yet to find it has no effect.