Python 3 Deep Dive Part 4 Oop High Quality [patched] -
Python 3: Deep Dive (Part 4 - OOP), created by Dr. Fred Baptiste, is widely regarded as one of the most comprehensive and high-quality advanced Object-Oriented Programming (OOP) resources available on Udemy. Unlike introductory courses that teach "how" to use a class, this course focuses on the "why" and the internal mechanics of how Python executes OOP code at a lower level. Course Highlights & Core Content
This violates LSP because a Square changes both dimensions when one is set. python 3 deep dive part 4 oop high quality
1. Classes and instances: the basics and important details
- Class definition: classes are created with the class statement. A class object is itself an instance of type (the metaclass).
- Instances store per-object state in dict (unless slots used). Attribute access follows a defined lookup order: instance dict → class dict → base classes → descriptors.
- Methods are functions defined in class body. Accessing a function on an instance produces a bound method object which wraps the function and the instance, supplying self automatically.
- Initializers: init configures a new instance after allocation; new is responsible for creating the instance (used for immutable types or custom allocation).
- Recommended practice: keep init simple; prefer factory functions or classmethods for complex construction logic.
Basic property usage
class Temperature:
def __init__(self, celsius):
self._celsius = celsius
@property
def celsius(self):
return self._celsius
