Python 3 Deep Dive Part 4 Oop -

In this example, the Rectangle and Circle classes override the area method of the Shape class.

Bypassing the dictionary lookup speeds up execution. 3. The Descriptor Protocol

class Square(Rectangle): def __init__(self, side_length): super().__init__(side_length, side_length) python 3 deep dive part 4 oop

class PluginMeta(type): plugins = [] def __new__(cls, name, bases, dct): new_class = super().__new__(cls, name, bases, dct) if name != "Plugin": cls.plugins.append(new_class) return new_class

Lina used simple patterns sparingly: factory functions to create media from metadata, strategy objects for different loan policies, and observers to notify patrons for overdue items. She avoided overengineering. In this example, the Rectangle and Circle classes

class Right(Base): def foo(self): print("Right"); super().foo()

Mastery of functional Python (decorators, closures, iterators) is mandatory. In this example

from abc import ABC, abstractmethod