In this series looking at features introduced by every version of Python 3, we move on to Python 3.9 and examine some of the major new features. These include type hinting generics in standard collections, string methods for stripping specified prefixes and suffixes from strings, extensions to function and variable annotations, and new modules for timezone information and topological sorting of graphs.

In this series looking at features introduced by every version of Python 3, we begin to look at version 3.7 by seeing what major new features were added. These include several improvements to type annotations, some behaviour to cope with imperfect locale information, and a number of diagnostic improvements.

In this series looking at features introduced by every version of Python 3, we continue our look at the features added in Python 3.6. This second article looks at some more of the new features added to the language added in this release. These include a new secrets module, a new implementation of the dict object and better support for path-like objects.

The second of my two articles covering features added in Python 3.3, this one talks about a large number of changes to the standard library, especially in network and OS modules. I also discuss implicit namespace packages, which are a bit niche but can be useful for maintaining large families of packages.

Time zones can be tricky beasts, particularly where daylight savings time is concerned. This post discusses issues around apply them to something like the ubiquitous Unix cron daemon.