Add skip comment to disable add-modules lines on a per-file basis.

[mjpieters]

I am adding from __future__ import annotations to our project files, automatically, using isort. But, in highly specialised cases such as marshmallow-dataclasses use, I'd like isort to not add that import line.

Right now I can only do so by adding # isort: skip_file to a module where I don't want the extra import to be added automatically.

Could isort perhaps support the following syntax?

# isort: skip: from __future__ import annotations

This would be treated as a add_imports.remove("from __future__ import annotations") action, and you'd have to add this comment high enough in the file to apply before add_imports is processed.

[timothycrosley]

Hi @mjpieters,

Thanks for the great feature suggestion! This has been implemented as 2 new action comments, documented here: https://pycqa.github.io/isort/docs/configuration/action_comments.html#isort-dont-add-imports to skip all adding, or the adding of a particular import to a file. This will be released to PyPI later this week.

Thanks!

~Timothy