Python Coding challenge - Day 288| What is the output of the following Python Code?

Code Explanation:

Create a Dictionary Using a Dictionary Comprehension:

x = {i: i ** 2 for i in range(3)}

This creates a dictionary x where:

The keys are numbers generated by range(3) (i.e., 0, 1, and 2).

The values are the squares of the keys.

The resulting dictionary is:

x = {0: 0, 1: 1, 2: 4}

Access the Dictionary Keys:

y = x.keys()

x.keys() returns a dictionary view object that dynamically reflects the keys of the dictionary x.

At this point, y contains the keys of x: {0, 1, 2}.

Modify the Dictionary:

x[3] = 9

A new key-value pair is added to the dictionary x.

The dictionary now becomes:

x = {0: 0, 1: 1, 2: 4, 3: 9}

Convert the Keys to a List:

print(list(y))

Since y is a dictionary view object, it dynamically reflects the keys of the dictionary x.

Even though y was assigned before modifying x, it still reflects the updated dictionary x.

The keys of x at this point are [0, 1, 2, 3].

Final Output:

[0, 1, 2, 3]