create test env for min or dev versions of dependencies

[davidism]

I'm trying to convert Flask to use uv and tox-uv. Currently, we use pip-compile to create requirements files for different test environments. Our basic testenv runs pytest for each supported version of Python. But we also want to run our tests against the lowest supported versions and current dev versions of our dependencies (werkzeug, jinja, etc). So we have py13-min and py39-dev envs as well. https://github.com/pallets/flask/blob/6b054f8f3876ff4c31580b014d344c4cf491059d/tox.ini#L19-L21

I'm not sure how to accomplish this with uv and tox-uv. I still want to use uv to install the locked tests dependency group, but then I also want to install Flask's dependencies with resolution = lowest or with deps = https://github.com... entries.

Do you use any environments like this? I figure this probably needs to get into uv itself, but maybe you have an idea of how to accomplish it with tox-uv now.

[gaborbernat]

Yeah, never tried doing something like that. I don't think you can do something like different resolutions logics per groups 🤔