Python Bytes
Python Bytes
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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.

#396 uv-ing your way to Python

August 13, 2024 00:32:19 31.15 MB Downloads: 0
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Brian #1: uv venv --python & uv python

  • I was reading this article Python Packaging is Great Now: uv is all you need
  • It’s a little too “look, a silver bullet” for me, but it did point out some cool uv stuff I didn’t know about.
    • uv venv venv --python 3.12 creates a virtual environment with Python 3.12,
      • even if you didn’t have 3.12 installed on your system already.
      • If it doesn’t work, try adding --python-preference managed
    • uv python list shows all the python versions on your computer
    • There’s quite a few “experimental features”
      • run Run a command or script (experimental)
      • init Create a new project (experimental)
      • add Add dependencies to the project (experimental)
      • remove Remove dependencies from the project (experimental)
      • sync Update the project's environment (experimental)
      • lock Update the project's lockfile (experimental)
      • tree Display the project's dependency tree (experimental)
      • tool Run and manage tools provided by Python packages (experimental)
      • python Manage Python versions and installations (experimental)
  • uv add --dev pytest will add pytest to your dev dependencies.
  • uv tree rocks
  • uv might not have “solved packaging” (or maybe it might have)
    • but it sure is fun to watch the experimentation of different workflows.

Michael #2: Python 3.12.5 released

Brian #3: Compile and use dependencies for multiple Python versions in Tox

  • Viktor Rimark
  • Cool idea to use the {envname}, which specifies the tox environment, in the name of a requirements-dev.txt file name.
  • Then add a requirements tox target to generate pip-compile-ed files.
  • Now I gotta try doing all of this with uv lock
  • Then we need everyone to mod their tools to comply with PEP 571, when/if it’s adopted (covered it last week)

Michael #4: Catalog of Dark Patterns

  • Including
    • Bait and Switch
    • Confirm Shaming
    • Disguised Ads
    • Roach Motel
    • Fake Scarcity
    • …

Extras

Brian:

  • Recording of Hello, pytest! is done. Editing now. On track for the 19th (or before).

Michael:

Joke: