Where is the Python documentation for the special methods? (__init__, __new__, __len__, …)

Question

Where is a complete list of the special double-underscore/dunder methods that can be used in classes? (e.g., __init__, __new__, __len__

Answer 1

Python's double underscore ("dunder") methods are also known as datamodel methods because they are at the core of Python's data model, providing a protocol for customizing (overloading) built-in methods. This is the reason why they are listed in the "Data Model" section of the Python's documentation.