Some checks are failing. The problems seems to be incompatibility between flake8 and black, namely flake8 is not allowing whitespace before ':' but black adds the white space whenever I run the corresponding command. Can anyone please guide me on how to fix the conflict.

That is strange. What are the commands that you use for flake8 and black?

I am using flake8 as linter in vscode and running
flake8 adfgvx_cipher.py --ignore=E203,W503 --max-line-length=88 --show-source
and
python -m black adfgvx_cipher.py

I tried to reproduce this issue. By running black and then flake8, (the commands you specified above) both commands exited with 0, so everything is compatible. I have no idea why the checks are failing (probably the --ignore=E203,W503 flag was not specified for pre-commit).

This looks like an issue with the pre-commit system itself.

Try to reproduce the issue locally by running black, then pep8, and pre-commit run --all-files. (make sure you have pre-commit installed with pip install pre-commit)

I dont know what the issue was but I reinstalled flake8 and black and it seems to be working now. I will make a new pull request now. Thanks for the help. Hope I didnt waste your time.

Thanks for the input. I have done the suggested edits.