Exploring the New Features of Python 3.11 | Real Python Podcast #131

Python 3.11 is here! Our regular guests, Geir Arne Hjelle and Christopher Trudeau, return to talk about the new version. Geir Arne wrote a series of preview articles earlier this year, and his annual piece was published on October 24th, titled "Python 3.11: Cool New Features for You to Try". Christopher's video course posted the next day, covering the topics from the article with visual examples of Python 3.11 in action.

Geir Arne and Christopher collaborated to create code examples of the new features. We discuss better error messages, faster code execution, task and exception groups, typing features, and native TOML support.

We dive into the updates and offer advice about ways to incorporate them into your projects. We also consider when you should start running Python 3.11.

Topics:

- 00:00:00 -- Introduction
- 00:02:19 -- Preview series
- 00:03:50 -- Faster CPython project
- 00:07:10 -- Specializing adaptive interpreter
- 00:11:24 -- Other performance stuff
- 00:16:07 -- Sponsor: Deepgram
- 00:16:51 -- Improved tracebacks
- 00:21:49 -- Exception groups and notes
- 00:27:22 -- Self type and Additional type hints
- 00:36:14 -- Video Course Spotlight
- 00:37:27 -- asyncio and task groups
- 00:41:25 -- TOML and tomllib
- 00:46:21 -- ISO date parsing
- 00:50:09 -- Negative zeros
- 00:53:38 -- Dead battery deprecations
- 00:56:04 -- Advice on upgrading
- 01:01:01 -- Thanks and goodbye