Hi there I would like to add some pre-commit-hooks to get a more maintainable code base.

Here I added(some of them are self explanatory):

• trailing-whitespace
• end-of-file-fixer
• check-yaml
• check-merge-conflict
• isort: sorts imports alphabetically, and automatically separated into sections and by type. github repo
• black: code formatter that follows python pep 8 and pythonic way. github repo
• flake8: wrapper around PyFlakes(checks for errors), pycodestyle(again pep8 check), Ned Batchelder's McCabe script(don't really know this one)

My idea is to start helping here ASAP. but I think this is a good step.