Some options are not parsed correctly from setup.cfg

[zedrdave]

With this recent PR, pylint is supposed to support loading options through setup.cfg.

I am finding that while it loads some options fine, it fails to load many options (a little unclear on why, but it seems to come down to the section where they are defined). E.g, this works:

[tool.pylint.MASTER]
init-hook="from pylint.config import find_pylintrc; import os, sys; sys.path.append(os.path.dirname(find_pylintrc())); "

This does not:

[tool.pylint.MASTER]
load-plugins=pylint_flask,pylint_flask_sqlalchemy

Oddly, this does:

[MASTER]
load-plugins=pylint_flask,pylint_flask_sqlalchemy

But neither of these two works:

[tool.pylint.FORMAT]
max-line-length=220
ignore-long-lines=[a-z]*

[FORMAT]
max-line-length=220
ignore-long-lines=[a-z]*

and yet, this works:

[tool.pylint.FORMAT]
good-names-rgxs=[a-z]

All these options work fine if I add them to a pylintrc file, so it does not seem to be an issue of format.

I have looked through the code a bit (which is how I was able to figure out that load-plugins worked with the short section name), but I cannot figure out what it is doing with these missing FORMAT options…

[AWhetter]

Are you sure tool.pylint.FORMAT works? Sections need to to start with "pylint." rather than "tool.pylint".

[zedrdave]

@AWhetter thanks for the pointer: I indeed tried removing the tool. part everywhere and it seems to work.

As for tool.pylint.FORMAT: surprisingly, yes, it does work too (but not the others). It's also the version that is recommended in the doc.

Maybe someone should update the doc (or the code) to make this clear?

[AWhetter]

Where is the documentation recommending tool.pylint.FORMAT? I can't find it. There's this page but it says to use pylint. for setup.cfg and tool.pylint. for pyproject.toml: https://github.com/PyCQA/pylint/blob/master/doc/user_guide/run.rst