Uv is the best thing to happen to the Python ecosystem in a decade

Post by Uehreka » Thu, Oct 30, 2025, 8:00 AM UTC

BrenBarn wrote: post #697

Uehreka wrote: post #677

Earlier quoted context omitted.

This was always my issue with pip and venv: I don’t want a thing that hijacks my terminal and PATH, flips my world upside down and makes writing automated headless scripts and systemd services a huge pain. When I drop into a Node.js project, usually some things have changed, but I always know that if I need to, I can find all of my dependencies in my node_modules folder, and I can package up that folder and move it w…

Conda is open source. Not sure what you mean about an EULA. There are some license agreements if you use Anaconda , but if you just use conda-forge you don't have any entanglements with Anaconda the company. (I agree the nomenclature is confusing.)

Post by yard2010 » Thu, Oct 30, 2025, 8:03 AM UTC

miki123211 wrote: post #643

ederamen wrote: post #517

Uv is so good. I'm a curmudgeon about adopting new tooling, and tried uv with a lot of skepticism, but it was just better in every way. And even if it wasn't so polished and reliable, the raw speed makes it hard to go back to any other tool. Uv combined with type hints reaching critical mass in the Python ecosystem, and how solid PyLance is in VSCode, feels so good it has made me consider investing in Python as my pr…

I wish we had a language that had the syntax of Python (notably including operator overloading, which is absolutely critical for neural networks, ML, data science and numerical computations), the performance, compile times and concurrency support of Go, the type system flexibility of Typescript, and the native platform integration of C/C++.

Post by oblio » Thu, Oct 30, 2025, 8:09 AM UTC

hirako2000 wrote: post #283

oblio wrote: post #169

Earlier quoted context omitted.

Don't they publish to PyPi? What do you care what they use behind the scenes?

It isn't what they use under the scene. I refered to the interfaces of other packaging tools. I use uv and it's excellent on its own. You get a repo, it's using playwright, what do you do now ? You install all the dependencies found in the dependency descriptor then sync to create a uv descriptor. or you compose a descriptor that uv understands. It's repetitive, rather systematic so it could be automated. I should vo…

Post by Rogach » Thu, Oct 30, 2025, 8:11 AM UTC

gcr wrote: post #394

Rogach wrote: post #172

Earlier quoted context omitted.

Without -S, `uv run --script` would be treated as a binary name (including spaces) and you will get an error like "env: ‘uv run --script’: No such file or directory". -S causes the string to be split on spaces and so the arguments are passed correctly.

On these systems, wouldn’t binfmt attempt to exec(“/usr/bin/env -S uv run --script”, “foo.py”) and fail anyway for the same reason?

Post by raduan » Thu, Oct 30, 2025, 8:11 AM UTC

hirako2000 wrote: post #159

A problem remain in that many and still more of the popular repositories don't use uv to manage their dependencies. So you are back having to use conda and the rest. Now, you have yet another package manager to handle. I wouldn't be harsh to engineers at astral who developed amazing tooling, but the issue with the python ecosystem isn't lack of tooling, it is the proliferation and fragmentation. To solve dependency m…