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: @mkennedy@fosstodon.org / @mkennedy.codes (bsky)
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Show: @pythonbytes@fosstodon.org / @pythonbytes.fm (bsky)

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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

#415 Just put the fries in the bag bro

Python Bytes

#415 Just put the fries in the bag bro