Python Coding Challenge - Question with Answer (ID -260626)

 

Explanation:

1. Creating a List

x = [1, 2, 3]

Explanation

A list named x is created.

It contains three elements:

1

2

3

Value of x:

[1, 2, 3]

2. Finding the Length Using the Walrus Operator (:=)

(n := len(x))

Explanation

len(x) calculates the number of elements in the list.

Since x has three elements,

len(x) = 3

The walrus operator (:=) does two things at once:

Assigns the value to the variable n.

Returns that same value immediately.

So,

n = 3

and the expression also evaluates to:

3

3. Checking the Condition

if (n := len(x)) > 2:

Explanation

This line works in the following order:

Step 1

len(x)

Result:

3

Step 2

Assign the value to n.

n = 3

Step 3

Compare the value with 2.

3 > 2

Result:

True

Since the condition is True, Python executes the code inside the if block.

4. Printing the Value

print(n)

Explanation

Since n already stores 3, Python prints it.

Output:

3

Execution Flow

Initial State

x = [1, 2, 3]

↓

Calculate Length

len(x)

↓

Result

3

↓

Assign using Walrus Operator

n = 3

↓

Check Condition

3 > 2

↓

Result

True

↓

Execute

print(n)

↓

Output

3