Should I build the dists myself, before invoking this GitHub Action?

[emcek]

What I'm doing wrong?

I got warning:

It looks like there are no Python distribution packages to publish in the directory 'dist/'. Please verify that they are in place should you face this problem.

Do I need run manually:
python setup.py sdist bdist_wheel

Here is my action yaml:
https://github.com/emcek/pyerge/blob/master/.github/workflows/python-publish.yml
And build log:
https://github.com/emcek/pyerge/runs/1407308980?check_suite_focus=true

[webknjaz]

Yes, you have you build the dists so that there would be something to upload. As stated in the README:

Users are responsible for preparing dists for upload by putting them into the dist/ folder prior to running this Action.

Make sure to build the dists using your favorite method, like invoking some PEP 517 build front-end¹ (we recommend using pypa/build!). Check out our packaging guide for more details.

Footnotes

1. To learn more about the separation of PEP 517 build back-end and front-end, see https://www.python.org/dev/peps/pep-0517/#appendix-a-comparison-to-pep-516 ↩