Provide better output from code style check

[cemilcengiz]

When I run the following code from the project root directory,
python tests/run_code_style.py check

I get the error below.

ERROR: SOME_FOLDERS/trapper/trapper/data/dataset_readers/dataset_reader.py Imports are incorrectly sorted and/or formatted.
Skipped 1 files
Traceback (most recent call last):
  File "tests/run_code_style.py", line 10, in <module>
    assert_shell("isort . --check --settings setup.cfg")
  File "SOME_FOLDERS/trapper/tests/utils.py", line 19, in assert_shell
    ), f"Unexpected exit code {str(actual_exit_status)}"
AssertionError: Unexpected exit code 256

Can't we just print messages for each incorrectly formatted code instead of throwing an exception?

[devrimcavusoglu]

ERROR: SOME_FOLDERS/trapper/trapper/data/dataset_readers/dataset_reader.py Imports are incorrectly sorted and/or formatted.
Skipped 1 files

This is isort's output without a touch (only it can output such files), but I'll find a prettier way to eliminate the traceback output. 👍

[devrimcavusoglu]

Fixed in #8 .