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devel / comp.lang.python.announce / [Python-announce] svcs: A Flexible Service Locator

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o [Python-announce] svcs: A Flexible Service LocatorHynek Schlawack

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[Python-announce] svcs: A Flexible Service Locator

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 by: Hynek Schlawack - Wed, 6 Sep 2023 06:19 UTC

Greetings,
I’m very happy to announce that the first stable version 23.20.0 of my svcs (read: services) package is up on PyPI: https://pypi.org/project/svcs/
I have spent the past months trial-and-erroring, talking to everybody who wouldn't run away, and writing docs. So many docs.
I’ve put that effort into it because I find it life-changing for writing web applications and I REALLY want y’all understand WHY.
When talking to people, two patterns repeated themselves:
1. The average company has 3.5 half-baked implementations of svcs.
2. People either get very excited or very indifferent.
The pattern it implements is called a service locator, but in most cases it’s just a convenient abstraction for plucking runtime-dependencies (correctly: SERVICES) from request objects + lifecycle features like instantiation/cleanups + introspection + better testability.
While implementing it, I've also noticed how incredibly muddy and overloaded the vernacular around these topics is (c.f. “services”), so I've spent at least as much time writing a glossary as I've spent writing code: https://svcs.hynek.me/en/latest/glossary.html
It comes with integration for AIOHTTP, FastAPI, Flask, Pyramid, and Starlette and it’s very easy to integrate with others.
As you’d expect from a modern Python package, it has (optional) first-class support for static typing as well as asyncio.
It’s been a very long time since I got this excited about a project of mine, but that excitement comes with anxiety and endless obsessing to the point that my friends started ghosting me which I take for the signal that it's time.
So if this has piqued your interest, here are more details: https://svcs.hynek.me/en/latest/why.html


devel / comp.lang.python.announce / [Python-announce] svcs: A Flexible Service Locator

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