provide a output that lists compatible python versions

[RonnyPfannschmidt]

often times its nice to have a matrix job for all supported python versions

it would e nice if a optional output for the list of supported github pythons could be provided (as input for a matrix)

[hynek]

Could you elaborate more concretely what you have in mind?

[RonnyPfannschmidt]

Given python requires and the supported python versions of github, I want a json list of supposedly supported pythons on github, so that they can be used in a matrix

[hynek]

Yeah but how and where? Like as an action output similar to dist? Can an action return a dict?

[RonnyPfannschmidt]

It will need to be a string as far as I understood the limitations of github actions

An output similar to dist should suffice

[hynek]

So what you want is to build the package as a first step, get a supported_pythons list like '["3.10", "3.11"]' back and then somehow pass it into:

      matrix:
        python-version: ${{ steps.baipp.outputs.supported_pythons }}

or something? How would that work?

[RonnyPfannschmidt]

Correct

[RonnyPfannschmidt]

Key problem here is not the list of python versions, but the names github uses for the python action

[hynek]

You mean relative to Tox or what?

[RonnyPfannschmidt]

Relative to the versions available on github for the setup python action

[webknjaz]

So it's about something I've been exploring here: https://github.com/tox-dev/workflow/blob/8ca2e60/.github/workflows/tox.yml#L142.