PCEP Practice Question: Data Types, Variables, Basic I/O and Operators

Exhibit

num = "10.5"
result = int(num)
print(result)

Refer to the exhibit. What will happen when this code is executed?

⚠ Common exam trap

Python Institute often tests the distinction between ValueError and TypeError, trapping candidates who think a decimal string causes a TypeError when it actually raises a ValueError because the string is not a valid integer literal.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Raises ValueError

The code attempts to convert the string '10.5' to an integer using int(). Since '10.5' contains a decimal point, it is not a valid integer literal; int() cannot parse it and raises a ValueError. The correct approach would be to first convert to float (float('10.5')) and then to int if needed.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Prints 10.5
Why it's wrong here
int() would not produce a float.
✗
Prints 10
Why it's wrong here
int() does not truncate string with decimal.
✗
Raises TypeError
Why it's wrong here
Type mismatch is a ValueError, not TypeError.
✓
Raises ValueError
Why this is correct
int() expects integer representation.

Go deeper

PCEP Practice Question: Data Types, Variables, Basic I/O and Operators

Exhibit

Why each option matters

Option-by-option breakdown

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