Multilevel inheritance

Software Engineering Principles in Python

Adam Spannbauer

Machine Learning Engineer at Eastman

Creating a Tweet class

Tweet Class File

Multilevel inheritance

Inheritance Family Tree

Multilevel inheritance

Multilevel Inheritance Family Tree

Multiple inheritance

Multiple Inheritance Family Tree

Multilevel inheritance and super

class Parent:
    def __init__(self):
        print("I'm a parent!")


class Child(Parent):
    def __init__(self):
        Parent.__init__()
        print("I'm a child!")


class SuperChild(Child):
    def __init__(self):
        super().__init__()
        print("I'm a super child!")

Learn more about multiple inheritance & super().

Multilevel inheritance and super

class Parent:
    def __init__(self):
        print("I'm a parent!")

class SuperChild(Parent):
    def __init__(self):
        super().__init__()
        print("I'm a super child!")


class Grandchild(SuperChild):
    def __init__(self):
        super().__init__()
        print("I'm a grandchild!")


grandchild = Grandchild()

I'm a parent!
I'm a super child!
I'm a grandchild!

Keeping track of inherited attributes

# Create an instance of SocialMedia
sm = SocialMedia('@DataCamp #DataScience #Python #sklearn')

# What methods does sm have?  ¯\_(?)_/¯
dir(sm)

['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', 
'__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', 
'__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', 
'__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', 
'__str__', '__subclasshook__', '__weakref__', '_count_hashtags', 
'_count_mentions', '_count_words', '_tokenize', 'hashtag_counts', 
'mention_counts', 'text', 'tokens', 'word_counts']

Let's Practice

Software Engineering Principles in Python