Python Coding challenge - Day 938| What is the output of the following Python Code?

 

Code Explanation:

1. Defining the Class

class C:

A class named C is defined.

It will create objects that have an attribute x.

2. Constructor Method (__init__)

    def __init__(self):

        self.x = 5

The constructor runs when an object is created.

It creates an instance attribute x and sets it to 5.

So after object creation:

c.x = 5

3. Creating an Object

c = C()

An object c of class C is created.

The constructor assigns c.x = 5.

4. Deleting the Attribute

del c.x

The del keyword removes the attribute x from the object c.

Now c no longer has an attribute named x.

After this:

c.__dict__ = {}

5. Trying to Access Deleted Attribute

print(c.x)

Python tries to find attribute x inside c.

It does not exist anymore.

Python raises an error:

AttributeError: 'C' object has no attribute 'x'

Final Result

Output before crash:

Nothing is printed.

Error:

AttributeError: 'C' object has no attribute 'x'

900 Days Python Coding Challenges with Explanation