Python Coding Challenge - Question with Answer (ID -310326)

 

Code Explanation:

1️⃣ Variable Initialization

x = ""

Here, variable x is assigned an empty string.

In Python, an empty string ("") is considered False (falsy value) when evaluated in a boolean context.

2️⃣ First Condition Check

if x == False:

This checks whether x is equal to False.

Important detail:

x is a string ("")

False is a boolean

In Python, "" == False → ❌ False

Because Python does not consider empty string equal to False, even though it is falsy.

👉 So this condition fails, and Python moves to the next condition.

3️⃣ Second Condition (elif)

elif not x:

not x checks the boolean value of x.

Since x = "" (empty string), it is falsy.

So:

not x → not False → ✅ True

👉 This condition passes.

4️⃣ Output Execution

print("B")

Since the elif condition is True, this line runs.

Output will be:

B

🎯 Final Output

B

Book: Numerical Python for Astronomy and Astrophysics