Python Coding challenge - Day 365| What is the output of the following Python Code?

 

Step-by-Step Execution

Step 1: Define Meta (A Custom Metaclass)

class Meta(type):

    pass

Meta is a class that inherits from type, meaning it is a metaclass.

A metaclass is a class that defines how other classes are created.

Step 2: Define MyClass Using Meta as Its Metaclass

class MyClass(metaclass=Meta):

    pass

Normally, if no metaclass is specified, Python uses type by default.

Here, we explicitly tell Python to use Meta instead.

Internally, Python calls:

MyClass = Meta('MyClass', (), {})

'MyClass' → The name of the class being created.

() → No parent classes (empty tuple).

{} → Empty dictionary for attributes and methods.

Since Meta is a subclass of type, MyClass is still considered a type/class.

Step 3: Check if MyClass is an Instance of type

print(isinstance(MyClass, type))

isinstance(MyClass, type) checks whether MyClass is an instance of type.

Since Meta inherits from type, any class created using Meta is also an instance of type.

This means:

isinstance(MyClass, type)  # True

Why is this True?

MyClass is an instance of Meta.

Meta is a subclass of type.

Since type is the default metaclass, any subclass of type still acts as a metaclass.

Therefore, MyClass is a valid class type and isinstance(MyClass, type) returns True.

Final Output

True