Python issubclass()

The issubclass() function returns a boolean indicating whether a given class is a subclass of one or more classes.

Syntax

issubclass(class, candidateClasses)

issubclass() take two parameters:

• class: A validly defined class.
• candidateClasses: A single class or type, or a tuple of classes and types.

If class is a subclass of candidateClasses (direct or indirect), True is returned, False otherwise.

Example

The following example uses the issubclass() function to confirm whether myInfo is a subclass of the myAge class:

class myAge:
  age = 36

class myInfo(myAge):
  name = "Homer"
  age = myAge

print(issubclass(myInfo, myAge))

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This will print the following output:

True

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Codebyte Example

In the following example, the issubclass() function checks the relationship between the Car and Color classes. While Color is a subclass of Car, the reverse is not true:

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