Python Coding Challenge - Question with Answer (ID 030826)

 

Explanation:

🔹 Line 1: Create the First Set

{1}

Python creates a set containing one element.

Current Set:

{1}

Memory:

Set A

{1}

🔹 Line 2: Create the Second Set

{1, 2}

Python creates another set containing two unique elements.

Current Set:

{1, 2}

Memory:

Set B

{1, 2}

🔹 Line 3: Compare Using <

{1} < {1, 2}

This is the biggest trick.

Most developers think:

"< compares numbers."

❌ Wrong!

For sets, the < operator does not compare values numerically.

Instead, it checks whether the left set is a proper subset of the right set.

Meaning:

"Are all elements of the left set present in the right set, and does the right set have at least one extra element?"

🔹 Step 1: Check Every Element

Python checks whether every element in:

{1}

exists inside:

{1, 2}

Check:

1 ✓ Found

All elements are present.

🔹 Step 2: Is It a Proper Subset?

Now Python checks whether the right set has more elements.

Left Set

{1}

↓

1 Element

-------------------

Right Set

{1,2}

↓

2 Elements

Since:

Every element of the left set exists in the right set ✅

The right set contains an extra element (2) ✅

It is a proper subset.

Result:

True

🔹 Step 3: Execute print()

Python now executes:

print(True)

Output:

True

Book: 100 Python Projects — From Beginner to Expert