19. Documentation

Comments are useful for clarifying complex code

You never have too many comments

Comments are only for unreadable parts of code

Readable code is preferable over having comments to make your code readable

Multiline docstrings are better than single line docstrings

Docstrings explain the purpose of a function or module

Docstrings and comments are interchangeable

You can add whatever details you want in a docstring

Not including a docstring will cause an error