#415 Just put the fries in the bag bro

Python Bytes

Topics covered in this episode:

• dbos-transact-py
• Typed Python in 2024: Well adopted, yet usability challenges persist
• RightTyper
• Lazy self-installing Python scripts with uv
• Extras
• Joke

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About the show

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Michael #1: dbos-transact-py

• DBOS Transact is a Python library providing ultra-lightweight durable execution.
• Durable execution means your program is resilient to any failure.
• If it is ever interrupted or crashes, all your workflows will automatically resume from the last completed step.
• Under the hood, DBOS Transact works by storing your program's execution state (which workflows are currently executing and which steps they've completed) in a Postgres database.
• Incredibly fast, for example 25x faster than AWS Step Functions.

Brian #2: Typed Python in 2024: Well adopted, yet usability challenges persist

• Aaron Pollack on Engineering at Meta blog
• “Overall findings
  • 88% of respondents “Always” or “Often” use Types in their Python code.
  • IDE tooling, documentation, and catching bugs are drivers for the high adoption of types in survey responses,
  • The usability of types and ability to express complex patterns still are challenges that leave some code unchecked.
  • Latency in tooling and lack of types in popular libraries are limiting the effectiveness of type checkers.
  • Inconsistency in type check implementations and poor discoverability of the documentation create friction in onboarding types into a project and seeking help when using the tools. “
• Notes
  • Seems to be a different survey than the 2023 (current) dev survey. Diff time frame and results. July 29 - Oct 8, 2024

Michael #3: RightTyper

• A fast and efficient type assistant for Python, including tensor shape inference

Brian #4: Lazy self-installing Python scripts with uv

• Trey Hunner
• Creating your own ~/bin full of single-file command line scripts is common for *nix folks, still powerful but underutilized on Mac, and trickier but still useful on Windows.
• Python has been difficult in the past to use for standalone scripts if you need dependencies, but that’s no longer the case with uv.
• Trey walks through user scripts (*nix and Mac)
  • Using #! for scripts that don’thave dependencies
  • Using #! with uv run --script and /// script for dependencies
  • Discussion about how uv handles that.

Extras

Brian:

• Courses at pythontest.com
  • If you live in a place (or are in a place in your life) where these prices are too much, let me know. I had a recent request and I really appreciate it.

Michael:

• Python 3.14 update released
• Top episodes of 2024 at Talk Python
• Universal check for updates macOS:
  • Settings > Keyboard > Keyboard shortcuts > App shortcuts > +
  • Then add shortcut for single app, ^U and the menu title.
  • 

Joke: Python with rizz