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Python - Inheritance

In this learning experience, I have learned about the following:

  • What is a superclass, baseclass or parentclass
  • What is a subclass
  • How to list all attributes and methods of a class or instance
  • When can an instance have new attributes
  • How to inherit class from another
  • How to define a class with multiple base classes
  • What is the default class every class inherit from
  • How to override a method or attribute inherited from the base class
  • Which attributes or methods are available by heritage to subclasses
  • What is the purpose of inheritance
  • What are, when and how to use isinstance, issubclass, type and super built-in functions

Pycache 📁

The pycache directory is a directory created by Python3 to store compiled bytecode files, which are generated to improve the performance of Python code execution.

Test 📁

The test directory is a directory that contains automated tests for the shell scripts of each problem in this repository.

Function Prototypes 🛠️

Prototypes for functions written in this project:

File Prototype
0-lookup.py def lookup(obj):
1-my_list.py def print_sorted(self):
2-is_same_class.py def is_same_class(obj, a_class):
3-is_kind_of_class.py def is_kind_of_class(obj, a_class):
4-inherits_from.py def inherits_from(obj, a_class):
6-base_geometry.py def area(self):
7-base_geometry.py def integer_validator(self, name, value):

Tasks 📃

Task-0: The 0-lookup.py file contains a function that returns the list of available attributes and methods of an object:

Task-1: The 1-my_list.py file contains a class MyList that inherits from list

Task-2: The 2-is_same_class.py file contains a function that returns True if the object is exactly an instance of the specified class ; otherwise False.

Task-3: The 3-is_kind_of_class.py contains a function that returns True if the object is an instance of, or if the object is an instance of a class that inherited from, the specified class ; otherwise False.

Task-4: The 4-inherits_from.py contain a function that returns True if the object is an instance of a class that inherited (directly or indirectly) from the specified class ; otherwise False.

Task-5: The 5-base_geometry.py file contains an empty class BaseGeometry.

Task-6: The 6-base_geometry.py file contains a class BaseGeometry that raises an Exception with the message area() is not implemented

Task-7: The 7-base_geometry.py file contains a class BaseGeometry (based on 6-base_geometry.py).

Task-8: The 8-rectangle.py file contains a class Rectangle that inherits from BaseGeometry (7-base_geometry.py).

Task-9: The 9-rectangle.py file contains a class Rectangle that inherits from BaseGeometry (7-base_geometry.py). (task based on 8-rectangle.py)

Task-10: The 10-square.py file contains a class Square that inherits from Rectangle (9-rectangle.py)

Task-11: The 11-square.py file contains a class Square that inherits from Rectangle (9-rectangle.py). (task based on 10-square.py).

Task-12: The 100-my_int.py file contains a class MyInt that inherits from int

Task-13: The 101-add_attribute.py file contains a function that adds a new attribute to an object if it’s possible