...
When contributing code, you should use a Linter.
A Linter is a tool that performs static source code analysis. The tool can check your code syntax and provide instructions on how to improve it.
For Python, recommend flake8 pylint: https://pypi.org/project/pylint/
Flake 8 is another linter: https://flake8.pycqa.org/en/latest/index.html
For Python, code can be automatically formatted to match PEP8 style guide using black.: https://black.readthedocs.io/en/stable/
Black is an opinionated code formatter, it can take your Python code and automatically reformat it to adhere to a strict set of style guidelines. Its a good idea to run black just before you commit and push your code to github.