Python issubclass()

The syntax of issubclass() is:

 issubclass(class, classinfo)

issubclass() Parameters

issubclass() takes two parameters:

• class - class to be checked
• classinfo - class, type, or tuple of classes and types

Return Value from issubclass()

issubclass() returns:

• True if class is subclass of a class, or any element of the tuple
• False otherwise

Example: How issubclass() works?

 class Polygon: def __init__(polygonType): print('Polygon is a ', polygonType) class Triangle(Polygon): def __init__(self): Polygon.__init__('triangle') print(issubclass(Triangle, Polygon)) print(issubclass(Triangle, list)) print(issubclass(Triangle, (list, Polygon))) print(issubclass(Polygon, (list, Polygon)))

Output

 True False True True

It's important to note that class is considered a subclass of itself.

Also Read:

• Python isinstance()
• Python super()