Handle multiple unused submodule imports

[charliermarsh]

trafficstars

pylint does this properly, Flake8 does not.

For example, with this:

import multiprocessing.pool
import multiprocessing.process

Flake8 will only mark the second import as unused.

[squiddy]

I have a question concerning a slightly adjusted example.

import multiprocessing.pool
import multiprocessing.process

z = multiprocessing.pool.ThreadPool()

pylint and flake8 don't see any unused import here. I would argue import multiprocessing.process is.

Update Working on this, PR incoming.

[ThiefMaster]

Would you consider exempting F401 from RUF100 until this is solved?

Even if ruff cannot handle this correctly, it'd be much cleaner if as a developer one could still add the proper noqa on each such unused import simply to indicate to other developers that they are aware of it being unused.

[JonathanPlasse]

Will Red knot address this issue?