Local and CI/CD isort with different behaviour

Hello,

have these lines in my .pre-commit.yaml:

- repo: https://github.com/timothycrosley/isort
    rev: 5.9.3 # should be the same as in dev.in
    hooks:
      - id: isort

and locally I have version 5.9.3 of isort. When I run pre-commit run --all-files locally, the isort is passed succesfully, but when the pre-commit is performed in git, there are some differences:

$ pre-commit run --all-files
Check hooks apply to the repository......................................Passed
Check for useless excludes...............................................Passed
Check Yaml...............................................................Passed
Check for merge conflicts................................................Passed
Fix End of Files.........................................................Passed
Trim Trailing Whitespace.................................................Passed
prettier.................................................................Passed
isort....................................................................Failed
- hook id: isort
- files were modified by this hook

Locally I am in a venv, while remotely this is performed inside a docker image:

Running with gitlab-runner 14.6.0 (5316d4ac)
  on gitlab_runner_2 UfyZYyEg
Resolving secrets
00:00
Preparing the "docker" executor
00:03
Using Docker executor with image python:3.9 ...
Pulling docker image python:3.9 ...
Using docker image sha256:f88f0508dc467046a760e8ea0bb5c5861ff4e0ade96226ca4700abd1bd28b696 for python:3.9 with digest python@sha256:bf6f8b201ffac79a1b9fded783e7f0547ad2c2e3e48e96a7a23855c3de14df4b ...

Any idea why this inconsistency? Thank you.

[kashiwachen]

I got something similar. isort behaves differently at local with isort --check--profile black .. In addition, it behaves differently at project root and project sub-directory. Here is my project structure:

.
├── Dockerfile
├── README.md
├── airflow
│   ├── airflow.cfg
│   ├── dags
│   │   ├── data_dag.py

If I run isort --check --profile black ./ at root. It returns:

> Skipped 1 files

If I run isort --check --profile black ./ at dags folder. It returns:

> ERROR: ./airflow/dags/data_dag.py Imports are incorrectly sorted and/or formatted.

And the changes from isort --check --diff --profile black ./:

 from datetime import datetime, timedelta

 import pendulum
-from utils.bash_util import gen_bash_command
-from utils.convert_util import A2B
-from utils.path_util import gen_path
-
 from airflow import models
 from airflow.operators.bash import BashOperator
 from airflow.operators.python import PythonOperator
 from airflow.providers.amazon.aws.hooks.s3 import S3Hook
+
+from utils.bash_util import gen_bash_command
+from utils.convert_util import A2B
+from utils.path_util import gen_path

[danielgafni]

I have the same problem. isort suddenly started failing in my CI (in docker), while running it locally doesn’t do anything. isort version is 5.10.1, python 3.8.12.