Python: Check if a given value is a method of a user-defined class

Last update on April 02 2025 12:32:24 (UTC/GMT +8 hours)

2. User-Defined Method Checker

Write a Python program to check if a given value is a method of a user-defined class. Use types.MethodType()

Sample Solution:

Python Code:

import types
class C:
    def x():
        return 1
    def y():
        return 1    
        
def b():
    return 2

print(isinstance(C().x, types.MethodType))
print(isinstance(C().y, types.MethodType))
print(isinstance(b, types.MethodType))
print(isinstance(max, types.MethodType))
print(isinstance(abs, types.MethodType))

Sample Output:

True
True
False
False
False

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program that defines a class with an instance method, retrieves that method from an object, and uses types.MethodType to confirm it is a method.
• Write a Python script to create multiple classes with various types of methods (instance, class, static) and determine using types.MethodType which ones are user-defined instance methods.
• Write a Python function that accepts any value and returns True if the value is a method of a user-defined class (using types.MethodType), otherwise False.
• Write a Python program that defines a user-defined class with a method and then checks if a dynamically assigned function (bound to an instance) is recognized as a method by types.MethodType.

Python Code Editor:

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