QUESTION 271 The following statement ... assert x == 0

The correct answer is D. will stop the program if x is not equal to 0. assert x == 0 raises an AssertionError and stops the program when the condition x == 0 evaluates to False - meaning when x is not equal to 0, making D correct. A is wrong because assert does the opposite: it passes silently when the condition is true (x equals 0), not stop…

Question

QUESTION 271
The following statement ...
assert x == 0

Options

Awill stop the program if x is equal to 0.
Bhas no effect.
Cis erroneous.
Dwill stop the program if x is not equal to 0.

How the community answered

(28 responses)

A
4% (1)
B
7% (2)
C
14% (4)
D
75% (21)

Explanation

assert x == 0 raises an AssertionError and stops the program when the condition x == 0 evaluates to False - meaning when x is not equal to 0, making D correct.

A is wrong because assert does the opposite: it passes silently when the condition is true (x equals 0), not stop execution.
B is wrong because the statement has a definite effect - it halts execution with an error whenever the assertion fails.
C is wrong because the syntax is perfectly valid Python; assert <expression> is a legal statement.

Memory tip: Think of assert as a guard that screams when lied to - you're asserting something is true, and if that turns out to be false, Python stops and complains. The program only continues when the condition holds.

Community Discussion

No community discussion yet for this question.

Full PCEP-30-02 Practice