#430 Or you go to jail

Topics covered in this episode:

• pip 25.1 has dependency groups, pylock.toml, plus more
• aiohttp goes free threaded
• uv 0.6.15 supports pylock.toml
• Whenever
• Extras
• Joke

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Brian #1: pip 25.1 has dependency groups, pylock.toml, plus more

• post What's new in pip 25.1 - Dependency groups!
• Richard Si
• Discovered this through Hugo van Kemenade

• Dependency groups, PEP 735, supported

  # pyproject.toml
  [dependency-groups]
  test = ["pytest", "pytest-xdist"]
  lint = ["mypy", "isort"]
  # Dependency Groups can include other groups! ✨
  dev = [ {include-group = "test"}, {include-group = "lint"} ]
  

• Package installation progress bar

• Resumable downloads
• Experimental lockfile generation, PEP 751, with pip lock
  • so cool
• pip index versions is stable, no longer experimental
  • use this to get a list of available versions
  • ex: python3 -m pip index versions pytest-check
  • combine with --json to get a nice script readable output

Michael #2: aiohttp goes free threaded

• Thanks to months of consistent contributions by Lysandros Nikolaou, all of the mandatory dependencies of