Python Coding Challenge - Question with Answer (ID -030726)

 

Code Explanation:

🔹 Line 1: Create the First Tuple

(1, 2)

Python creates the tuple:

(1, 2)

🔹 Line 2: Create an Empty Tuple

()

This is an empty tuple.

Since it has no elements, adding it to another tuple doesn't change the values.

🔹 Line 3: Perform Tuple Concatenation

(1,2) + ()

Python concatenates the tuples.

Result:

(1,2)

From a value perspective, nothing changes because the second tuple is empty.

🔹 Line 4: Evaluate the is Operator

(1,2) + () is (1,2)

The is operator checks:

"Are both operands the exact same object in memory?"

It does not compare values.

Think of it like:

Same memory location?

instead of:

Same contents?

🔹 Why Does CPython Print True?

In CPython, there is an optimization.

When Python sees:

(1,2) + ()

it realizes:

"Adding an empty tuple doesn't change anything."

So instead of creating a brand-new tuple, CPython often reuses the existing tuple object.

Memory (CPython optimization):

          ┌──────────────┐

Left  ───►│   (1, 2)     │

          └──────────────┘

                ▲

                │

Right ──────────┘

Both expressions point to the same tuple object.

Therefore:

is

returns:

True

🔹 Line 5: Print the Result

print(True)

Output:

True

Book: Mastering Pandas with Python