Re: I always forget how to access information about classes and methods - how to do it?

You can check classes and methods in Python by using the built-in introspection tools. dir(obj) shows the available attributes and methods, help(obj) shows the documentation for an object, and help(obj.method) shows details for one method. If you want to see the parameters of a callable, inspect.signature() is also very useful. For example, dir(list), help(list.append), and inspect.signature(list.append) are simple ways to inspect a class and one of its methods. The official Python documentation for dir() and help() is here: https://docs.python.org/3/library/functions.html