Python Coding challenge - Day 868| What is the output of the following Python Code?

 

Code Explanation:

1. Class Definition

class Test:

A class named Test is created.

Objects of this class will use the special methods __repr__ and __str__.

2. Defining __repr__ Method

    def __repr__(self):

        return "REPR"

__repr__ is a magic method that returns the official, developer-friendly string representation of an object.

It is used in debugging, lists of objects, the Python shell, etc.

This method returns the string "REPR".

3. Defining __str__ Method

    def __str__(self):

        return "STR"

__str__ is another magic method that defines the user-friendly string representation.

It is used when you call print(object) or str(object).

It returns the string "STR".

4. Creating an Object

t = Test()

An object t of class Test is created.

Now t has access to both __repr__ and __str__.

5. Printing the Object

print(t)

When printing an object, Python always calls __str__ first.

Since the class defines a __str__ method, Python uses it.

Therefore the printed output is:

STR

Final Output

STR

700 Days Python Coding Challenges with Explanation