Just a Class Diagram for Python 3 Collections Abstract Base Classes

Python’s built-in container types such as tuple, str, bytes, list, set, and dict show well why Python is so popular. They cover all the usage in view of mutability and item order, and the operations and behaviors are really intuitive, expressive, and concise. Especially slice notation and high-order functions on these container types are even beautiful.

In Python, these container types are generalized by abstract base classes mechanism to be extended easily. The above class diagram depicts the main classes in Python’s collections.abs module and their relationship with built-in container types.

The diagram is drawn using PlantUML and the source (in plain text) of it is here.