At the instigation of Guido van Rossum (the Benevolent Dictator for Life forthe Python language specification and the CPython reference implementation),the Python ecosystem is currently undertaking a transition from the Python 2series to the infamously incompatible Python 3 series.
This page collects a series of essays I have written covering variousaspects of the Python 3 transition (as well as Python 3 features in general).