fix: ci test

[rachmadaniHaryono]

based on this stackoverflow answer ¹ which point to this issue ²

earlier version of black can be used but imo it is better to use latest version

e: due to black upgrade, python version requirement have to be changed

now there is another error with mkdoc yaml config

e2: error on mkdocs yaml config can't be solved on windows on python version 3.6 and 3.7. see ³

e3: change on mkdocs config is based on example here ⁴

Footnotes

1. https://stackoverflow.com/a/69913764/1766261 ↩

2. https://github.com/python/typed_ast/issues/169#issuecomment-964360487 ↩

3. https://github.com/copier-org/copier/pull/224#issuecomment-668723977 ↩

4. https://www.mkdocs.org/user-guide/configuration/#markdown_extensions ↩

[rachmadaniHaryono]

note that python3.6 will get security update until this month

https://www.python.org/dev/peps/pep-0494/#id16

[pawamoy]

OK, good to go! Thank you very much!

[rachmadaniHaryono]

Not sure if True is accepted. By convention we use true and false in YAML (or yes, no, on, off)

actually there is yaml formatter hook for pre commit

https://github.com/macisamuele/language-formatters-pre-commit-hooks

https://github.com/jumanjihouse/pre-commit-hook-yamlfmt

one of those could be used to format yaml. of course some yaml file like copier-answers.yml should be excluded

this could also apply to toml files

[pawamoy]

You can open a PR if you want. Let see what the community thinks.