Python Coding Challenge - Question with Answer (ID 210926)

 

Explanation:

🟢 Line 1: Set Creation

x = {1, True, 1.0, False, 0}

Here x is a set.

At first glance, it looks like there are 5 elements:

1

True

1.0

False

0

But Python treats some of these values as equal.

🟡 Line 2: 1 and True

1 == True

Output:

True

Python considers:

True == 1

So 1 and True represent the same set key.

🔵 Line 3: 1 and 1.0

1 == 1.0

Output:

True

Therefore:

1

True

1.0

all collapse into one set element.

🟠 Line 4: False and 0

Similarly:

False == 0

Output:

True

So:

False

0

also collapse into one element.

🧠 Line 5: What Does the Set Actually Contain?

Instead of 5 distinct elements, Python effectively has only:

{1, False}

or an equivalent representation depending on insertion/representation details.

So there are only 2 unique elements.

🔴 Line 6: len(x)

print(len(x))

len() counts the number of unique elements in the set.

Therefore:

1 / True / 1.0 → one element

False / 0      → one element

✅ Final Output

2

Books: Mastering Pandas with Python