A subclass is a class that inherits attribute names and methods from another class—the operation is called subclassing.
A base class (superclass) is defined as a class that another class inherits attributes from. Base classes are listed in parentheses in a subclass header. You have to separate base classes by putting commas between them, within the parentheses.
When you create a subclass, you can add or overwrite any methods of its base classes.Python classes can be created:
For a conceptual standpoint, take a look at the following exampleWhere,
Both subclasses pen and chalk inherit characteristics of the base class writing tools. The subsequent class defines a complex class called Employee.class Employee:
The next class is a subclass of the Employee class.class Person(Employee):
Inherited methods of base classes aren't automatically called. It is necessary to call them explicitly. That's why, in the previous example, the Person.__init__ method had to call the Employee.__init__ method.
It is always necessary to pass the self argument because base classes don't know what instance is being used. The previous example passes three parameters to the base class's __init__ method (the self reference, an argument, and a default value for the other argument).
Multiple inheritance is defined by entering multiple classes in the header of a new class. The order used for informing the base classes really does matter. The precedence order, for a search in the base classes, starts at the classes located at the left side.class A:
The precedence order for class D inheritance is: B, A, C.>>>class A:
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