notes.md

Differences between good and bad

• functions

• imports at top

• functions have docstrings

• name == "main"

• good uses logger - run Good again with logging.DEBUG to see the difference

• good uses type hints ( link to RealPython type hints )

• bad has no return value from function (but type says that it is a string)

• bad has no separation between function and other code

• bad could leave file open if functions errors

• bad defines f outside the function

Flake8

mypy

• demonstrate type hints in existing scripts
• demonstrate autocomplete with dot notation
• Settings > Pylance > type checking
• demonstrate spotting issues with return type