repos:
-   repo: https://github.com/psf/black
    rev: 21.7b0
    hooks:
    - id: black
-   repo: https://github.com/pycqa/isort
    rev: 5.9.3
    hooks:
    - id: isort
-   repo: https://gitlab.com/pycqa/flake8
    rev: 3.9.2
    hooks:
    - id: flake8