Check pyproject.toml for any potential project limitation/requirements when using pipx run

[brettcannon]

How would this feature be useful?
If I want to run e.g. pipx run pylint, it would be nice if it could be tied to any version requirements I may have specified in my pyproject.toml file for installing pylint for development.

Describe the solution you'd like
If something specified by pipx run is found in pyproject.toml's optional-dependencies, use that dependency specification when installing the tool into the temporary virtual environment. Probably would want to just grab the first requirement found instead of trying to be clever about it.

Describe alternatives you've considered
I've considered not caring. 😉 Honestly it probably isn't worth worrying about this idea, but I at least wanted it written down after I thought about it in case anyone else also realized that when you are running a tool for a project there may be certain installation requirements for it.

[uranusjr]

The main question would be which pyproject.toml

[brettcannon]

The main question would be which pyproject.toml

Probably start in the cwd, and work your way up until you find a pyproject.toml file (if any).

[gaborbernat]

PR welcome.