Topics covered in this episode:
* Python 3.14*
* Free-threaded Python Library Compatibility Checker*
* Claude Sonnet 4.5*
* Python 3.15 will get Explicit lazy imports*
Extras
Joke
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About the show
Sponsored by DigitalOcean: pythonbytes.fm/digitalocean-gen-ai Use code DO4BYTES and get $200 in free credit
Connect with the hosts
Michael: @mkennedy@fosstodon.org /...
Topics covered in this episode:
- * Python 3.14*
- * Free-threaded Python Library Compatibility Checker*
- * Claude Sonnet 4.5*
- * Python 3.15 will get Explicit lazy imports*
- Extras
- Joke
Watch on YouTube
About the show
Sponsored by DigitalOcean: pythonbytes.fm/digitalocean-gen-ai Use code DO4BYTES and get $200 in free credit
Connect with the hosts
- Michael: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)
- Brian: @brianokken@fosstodon.org / @brianokken.bsky.social
- Show: @pythonbytes@fosstodon.org / @pythonbytes.fm (bsky)
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Brian #1: Python 3.14
- Released on Oct 7
- What’s new in Python 3.14
- Just a few of the changes
- PEP 750: Template string literals
- PEP 758: Allow except and except* expressions without brackets
- Improved error messages
- Default interactive shell now
- highlights Python syntax
- supports auto-completion
- argparse
- better support for python -m module
- has a new suggest_on_error parameter for “maybe you meant …” support
- python -m calendar now highlights today’s date
- Plus so much more
Michael #2: Free-threaded Python Library Compatibility Checker
- by Donghee Na
- App checks compatibility of top PyPI libraries with CPython 3.13t and 3.14t, helping developers understand how the Python ecosystem adapts to upcoming Python versions.
- It’s still pretty red, let’s get in the game everyone!
Michael #3: Claude Sonnet 4.5
- Top programming model (even above Opus 4.1)
- Shows large improvements in reducing concerning behaviors like sycophancy, deception, power-seeking, and the tendency to encourage delusional thinking
- Anthropic is releasing the Claude Agent SDK, the same infrastructure that powers Claude Code, making it available for developers to build their own agents, along with major upgrades including checkpoints, a VS Code extension, and new context editing features
- And Claude Sonnet 4.5 is available in PyCharm too.
Brian #4: Python 3.15 will get Explicit lazy imports
- Discussion on discuss.python.org
This PEP introduces syntax for lazy imports as an explicit language feature:
lazy import json
lazy from json import dumps
BTW, lazy loading in fixtures is a super easy way to speed up test startup times.
Extras
Brian:
- Music video made in Python - from Patrick of the band “Friends in Real Life”
- source code: https://gitlab.com/low-capacity-music/r9-legends/
Michael:
- New article: Thanks AI
- Lots of updates for content-types
- Dramatically improved search on Python Bytes (example: https://pythonbytes.fm/search?q=wheel use the filter toggle to see top hits)
- Talk Python in Production is out and for sale
Joke: You do estimates?
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