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Switching Pip to Uv in a Dockerized Flask / Django App

(nickjanetakis.com)
265 points tosh | 2 comments | 24 Jun 25 09:46 UTC | HN request time: 0s | source
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ericfrederich ◴[24 Jun 25 12:39 UTC] No.44365535[source]▶
I am totally against Python tooling being written in a language other than Python. I get that C extensions exist and for the most part Python is synonymous with CPython.

I think 2 languages are enough, we don't need a 3rd one that nobody asked for.

I have nothing against Rust. If you want a new tool, go for it. If you want a re-write of an existing tool, go for it. I'm against it creeping into an existing eco-system for no reason.

A popular Python package called Pendulum went over 7 months without support for 3.13. I have to imagine this is because nobody in the Python community knew enough Rust to fix it. Had the native portion of Pendulum been written in C I would have fixed it myself.

https://github.com/python-pendulum/pendulum/issues/844

In my ideal world if someone wanted fast datetimes written in Rust (or any other language other than C) they'd write a proper library suitable for any language to consume over FFI.

So far this Rust stuff has left a bad taste in my mouth and I don't blame the Linux community for being resistant.

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nchmy ◴[24 Jun 25 12:47 UTC] No.44365607[source]▶
What, exactly, is your objection to using rust (or any non-python/C language) for python tooling? You didn't actually give any reasons
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jftuga ◴[24 Jun 25 12:55 UTC] No.44365690[source]▶
I believe he alluded to it here...

"I have to imagine this is because nobody in the Python community knew enough Rust to fix it. Had the native portion of Pendulum been written in C I would have fixed it myself."

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ericfrederich ◴[24 Jun 25 13:11 UTC] No.44365850[source]▶
Correct. There better be a damn good reason to add another language to the ecosystem other than it's that particular developer's new favorite language.

Is there anything being done in uv that couldn't be done in Python?

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hobofan ◴[24 Jun 25 13:33 UTC] No.44366097[source]▶
To quote Movie Mark Zuckerberg from The Social Network:

> If Python developers were the inventors of uv - they'd have invented uv

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1. adammarples ◴[25 Jun 25 21:07 UTC] No.44381848[source]▶
Well to be fair I think they did, it's a successor to Rye which was built by the guy who made Flask, in rust, and inspired by how cargo works.
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2. hobofan ◴[25 Jun 25 22:22 UTC] No.44382323[source]▶
Hmm, maybe. Though, IIRC rye and uv were more parallel developments rather than uv's lineage tracing back to rye. Also at the point mitsuhiko created rye, he had handed off maintenance of Flask for ~8 years already and was arguably more associated with efforts in the Rust community than in Python.

However, in both cases (uv and rye) it took someone with a Rust background to build something to actually shake up the status quo. With the core PyPa people mostly building on incremental improvements in pip, and Poetry essentially ignoring most PEP effort, things weren't really going to go anywhere.