Python Bytes is a weekly podcast hosted by Michael Kennedy and Brian Okken. The show is a short discussion on the headlines and noteworthy news in the Python, developer, and data science space.
#408 python-preference only-managed 3.13t
- 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
- Site is live with CFP and dates
- Health code is finally reasonable: “Masks are Encouraged but not Required”
- PyCon US 2025 Dates
- Tutorials - May 14-15, 2025
- Sponsor Presentations - May 15, 2025
- Opening Reception - May 15, 2025
- Main Conference and Online - May 16-18, 2025
- Job Fair - May 18, 2025
- Sprints - May 19-May 22, 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