callable()

The callable() function in Python is a built-in function that returns True if the specified object appears callable (i.e., can be called as a function), and False otherwise. An object is considered callable if it has a __call__() method or is a function or a class.

Parameter Values

Parameter Description
object

An object that can be called

Return Values

callable() returns a bool, indicating if an object is callable or not.

How to Use callable() in Python

Example 1:

The callable() function in Python is used to determine whether an object is callable (a function) or not. It returns True if the object appears callable; otherwise, it returns False.

def greet():
    print('Hello, World!')

callable(greet) # Output: True
Example 2:

In the example below, a class method is defined and then checked using the callable() function. The output will be True because class methods are callable in Python.

class MyClass:
    def display(self):
        print('This is a class method')

obj = MyClass()
callable(obj.display) # Output: True
Example 3:

The callable() function will return False when checking a non-callable object, such as an integer. This is because integer objects are not callable in Python.

num = 10
callable(num) # Output: False

Built-In Functions