Hey pants people, I have some issues with isort. When calling

pants fmt ::

it says the following:

14:12:16.85 [INFO] Completed: Format with Black - black made no changes.
14:12:16.85 [INFO] Completed: Format with isort - isort made no changes.
14:12:16.85 [INFO] Completed: Format with Black - black made no changes.
14:12:16.85 [INFO] Completed: Format with Black - black made no changes.
14:12:16.85 [INFO] Completed: Format with isort - isort made no changes.

✓ black made no changes.
✓ isort made no changes.

However when I then run

pants lint ::

, isort gives me an error message (or a warning):

14:12:22.84 [INFO] Completed: Format with Black - black made no changes.
14:12:22.85 [INFO] Completed: Format with Black - black made no changes.
14:12:22.86 [WARN] Completed: Format with isort - isort made changes.
 paths/to/files.py
 paths/to/files2.py
 paths/to/files3.py
 …
  
14:12:22.86 [INFO] Completed: Lint with Flake8 - flake8 succeeded.
Partition: ['CPython==3.10.*']


14:12:22.86 [INFO] Completed: Lint with Flake8 - flake8 succeeded.
Partition: ['CPython==3.10.*']



✓ black succeeded.
✓ flake8 succeeded.
✕ isort failed.

My `mypy.ini`:

[mypy]
warn_return_any = False
warn_unused_configs = False
packages=package1, package2

# Sentence splitter is untyped, ignore imports
[mypy-sentence_splitter.*]
ignore_missing_imports = True

[mypy-scipy.*]
ignore_missing_imports = True

Does anyone know where this discrepancy could come from? I’d like to include

pants lint

in CI but this stops me from using it. Any help is greatly appreciated!

Sorry for the trouble! What version of pants? Finally, if you use,

--keep-sandboxes=on_failure

and jump into the sandbox then run the

__run.sh

, and compare the changes files, you should be able to determine exactly what the changes are, which would be helpful.

Ugh, this is a known issue with isort, and is very annoying, sorry. Have you seen https://www.pantsbuild.org/docs/python-linters-and-formatters#isort-possible-issues-with-its-import-classifier-algorithm ? That has some advice on how to work around this.