Python issubclass() Function

Python issubclass() Function

The issubclass() function in Python returns a boolean value ‘True’ if the given object is a subclass of classinfo, else it returns False.

Syntax

issubclass(class, classinfo)

Parameter

class: It is a required parameter which represents a tuple of class objects.

classinfo: This parameter represents a type or a class, or a tuple of types and/or classes

Return

This function returns True if the given object is a subclass of the specified object, else it returns False.

Example 1

# Python Program explaining
# the issubclass() function
class Score:
  score = 136
class Obj(Score):
  name = "Reema"
  score = Score
val = issubclass(Score, Obj)
print(val)

Output

False

Example 2

# Python Program explaining
# the issubclass() function
class Shape:
  def __init__(polygonType):
    print('Polygon is a ', polygonType)
class Triangle(Shape):
  def __init__(self):
    Polygon.__init__('triangle')
print(issubclass(Triangle, Shape))
print(issubclass(Triangle, list))
print(issubclass(Triangle, (list, Shape)))

Output

True
False
True
True