This article explains the difference between assertions and exceptions and when to use which one.

How to get started with devpi and evaluate it for hosting a company’s packages.

I demonstrate how you can use pytest’s fixture system and the plug-in pytest-asyncio to reduce the boilerplate code required for testing networking libraries.

Pytest currently offers no helpers for testing (asyncio) coroutines. Its powerful plug-in architecture allows you fix that and write elegant tests for coroutines.

aiomas is a new, asyncio based library that helps you with creating distributed multi-agent systems. It allows different clocks (real-time, coupled to simulations, …) and different codecs (MsgPack, JSON) to be used. You can also just use the lower level abstractions for RPC or message based request-reply channels.

Using good passwords is hard. You can’t remember complicated ones but you also don’t want store them in the cloud. Biometry is not a solution either. The master password algorithm comes to help. There are various implementations of it and I did one in Python.

SimPy is a discrete-event simulation library for Python. It can perform simulations as fast as possible as well as in real time (or wall-clock time). This guide describes real-time simulations can be achieved in SimPy.