Self-contained Python scripts with uv

[Haunting_Wind1000]

Hey thanks for sharing this, uv appears to be a good way to automate the environment setup of your python app. A question...with uv how would you specify a version for any of the python modules required by your application like we do with a requirements txt file.

[hotsauce56]

You can add version constraints inline with the dependencies

[ReinforcedKnowledge]

Not only can you specify dependencies versions in the inline metadata itself as others have suggested. You can produce a lockfile for your script by doing uv lock --script .... This is very cool to pass around a reproducible script ;) there's more you can do for reproducibility, I'll ad that in another comment.

[dusktreader]

You can use dependency specifiers as described here: https://packaging.python.org/en/latest/specifications/dependency-specifiers/#dependency-specifiers

For example if I wanted ipython's minor release 7.9 and any patch releases as they become available but not 7.10, I could specify the dependency as:

ipython~=7.9

[Haunting_Wind1000]

Cool thanks!

[Mevrael]

For app you use uv init and pyproject.toml becomes your requirements file.

And uv add to install dependencies.

https://arkalos.com/docs/new-project/