Topics covered in this episode:

GitHub action security: zizmor
Python is now the top language on GitHub
Python 3.13, what didn't make the headlines
PyCon US 2025
Extras
Joke

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Brian #1: GitHub action security: zizmor

Article: Ned Batchelder
zizmor: William Woodruff & others
“a new tool to check your GitHub action workflows for security concerns.”
Install with cargo or brew, then point it at workflow yml files.
It reports security concerns.

Michael #2: Python is now the top language on GitHub

Thanks to Pat Decker for the heads up.
A rapidly growing number of developers worldwide
- This suggests AI isn’t just helping more people learn to write code or build software faster—it’s also attracting and helping more people become developers. First-time open source contributors continue to show wide-scale interest in AI projects. But we aren’t seeing signs that AI has hurt open source with low-quality contributions.
Python is now the most used language on GitHub as global open source activity continues to extend beyond traditional software development.
- The rise in Python usage correlates with large communities of people joining the open source community from across the STEM world rather than the traditional community of software developers.
There’s a continued increase in first-time contributors to open source projects. 1.4 million new developers globally joined open source with a majority contributing to commercially backed and generative AI projects.
- Notably, we did not see a rise in rejected pull requests. This could indicate that quality remains high despite the influx of new contributors.

Brian #3: Python 3.13, what didn't make the headlines

Some pretty cool updates to pdb : the command line Python debugger
- multiline editing
- code completion
pathlib has a bunch of performance updates
python -m venv adds a .gitignore file that auto ignores the venv.

Michael #4: PyCon US 2025

Extras

Brian:

Please publish and share more - Jeff Triplett

Michael:

pre-commit-uv
- Just spoke with Sefanie Molin about pre-commit hooks on Talk Python
Curse you Omnivore!
We have moved to hetzner
Typora markdown app

free-threaded Python is now available via uv

uv self update
uv python install --python-preference only-managed 3.13t

Joke: Debugging char

#408 python-preference only-managed 3.13t

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