• PEP 814 – Add frozendict built-in type


• From Material for MkDocs to Zensical


• Tach


• Some Python Speedups in 3.15 and 3.16


• Extras


• Joke

About the show

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Michael #0: Black Friday is on at Talk Python

• What’s on offer:
  
  
  
  1. An AI course mini bundle (22% off)
  
  
  2. 20% off our entire library via the Everything Bundle (what's that? ;) )
  
  
  3. The new Talk Python in Production book (25% off)
  
  

Brian: This is peer pressure in action

• 20% off The Complete pytest Course bundle (use code BLACKFRIDAY) through November
  
  
  
  • or use save50 for 50% off, your choice.
  
  


• Python Testing with pytest, 2nd edition, eBook (50% off with code save50) also through November
  
  
  
  • I would have picked 20%, but it’s a PragProg wide thing
  
  

Michael #1: PEP 814 – Add frozendict built-in type

• by Victor Stinner & Donghee Na


• A new public immutable type frozendict is added to the builtins module.


• We expect frozendict to be safe by design, as it prevents any unintended modifications. This addition benefits not only CPython’s standard library, but also third-party maintainers who can take advantage of a reliable, immutable dictionary type.


• To add to existing frozen types in Python.

Brian #2: From Material for MkDocs to Zensical

• Suggested by John Hagen


• A lot of people, me included, use Material for MkDocs as our MkDocs theme for both personal and professional projects, and in-house docs.


• This plugin for MkDocs is now in maintenance mode


• The development team is switching to working on Zensical, a static site generator to overcome some technical limitations with MkDocs. There’s a series of posts about the transition and reasoning
  
  
  
  1. Transforming Material for MkDocs
  
  
  2. Zensical – A modern static site generator built by the creators of Material for MkDocs
  
  
  3. Material for MkDocs Insiders – Now free for everyone
  
  
  4. Goodbye, GitHub Discussions
  
  


• Material for MkDocs
  
  
  
  • still around, but in maintenance mode
  
  
  • all insider features now available to everyone
  
  


• Zensical is / will be
  
  
  
  • compatible with Material for Mkdocs, can natively read mkdocs.yml, to assist with the transition
  
  
  • Open Source, MIT license
  
  
  • funded by an offering for professional users: Zensical Spark
  
  

Michael #3: Tach

• Keep the streak: pip deps with uv + tach


• From Gerben Decker


• We needed some more control over linting our dependency structure, both internal and external.


• We use tach (which you covered before IIRC), but also some home built linting rules for our specific structure. These are extremely easy to build using an underused feature of ruff: "uv run ruff analyze graph --python python_exe_path .".


• Example from an app I’m working on (shhhhh not yet announced!)

Brian #4: Some Python Speedups in 3.15 and 3.16

• A Plan for 5-10%* Faster Free-Threaded JIT by Python 3.16
  
  
  
  • 5% faster by 3.15 and 10% faster by 3.16
  
  


• Decompression is up to 30% faster in CPython 3.15

Extras

Brian:

• LeanTDD book issue tracker

Michael:

• No. 4 for dependencies: Inverted dep trees from Bob Belderbos

Joke: git pull inception