PCEP Practice Question: Data Types, Variables, Basic I/O and Operators
A developer needs to read an integer from user input and store it. Which code snippet accomplishes this?
⚠ Common exam trap
Python Institute often tests the distinction between calling a function (with parentheses) and referencing it (without parentheses), so candidates mistakenly write `int(input)` instead of `int(input())`.
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
✓
x = int(input())
`int(input())` first calls `input()` to read a string from the user, then passes that string to `int()` to convert it to an integer. This is the standard Python pattern for reading an integer from standard input.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
x = int(input())
Why this is correct
Correct; input() returns string, int() converts.
- ✗
x = read_int()
Why it's wrong here
No built-in read_int() function.
- ✗
x = input(int())
Why it's wrong here
Invalid syntax; int() has no argument.
- ✗
x = int(input)
Why it's wrong here
int(input) passes function object, not string.
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