Friday, 7 February 2025

Python Coding challenge - Day 364| What is the output of the following Python Code?

 


Code Explanation:

class Meta(type):
    pass
class Meta(type):
This defines a new class named Meta.
The Meta class inherits from type, meaning it is a metaclass.
A metaclass is a class that is used to create other classes.
pass
This means the Meta class does not add any custom behavior.
It behaves just like type, which is the default metaclass in Python.

class MyClass(metaclass=Meta):
    pass
class MyClass(metaclass=Meta):
This defines a new class named MyClass.
Instead of using the default metaclass (type), we explicitly set Meta as the metaclass.
Internally, Python calls Meta('MyClass', (), {}), which:
Creates a class named 'MyClass'.
Has no parent classes (()).
Has no additional attributes ({}).
pass
This means MyClass has no additional methods or attributes.
It is just an empty class.
print(type(MyClass))

type(MyClass)
The type() function returns the metaclass of the class passed as an argument.
Since MyClass was created using Meta, type(MyClass) returns Meta.
print(...)

This prints the result of type(MyClass), which is <class '__main__.Meta'>.
__main__ refers to the current script/module where Meta was defined.

Final Output

<class '__main__.Meta'>

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