Assert statements in Python are used as debugging tools to test assumptions in code. If an expression evaluated by assert is false, Python raises an AssertionError, helping developers catch bugs early.
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What is the main purpose of the assert statement in Python?
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Question 2 of 15
2. Question
Which of the following is correct syntax for using assert?
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Question 3 of 15
3. Question
What exception does a failed assert raise?
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Question 4 of 15
4. Question
What does this code do?
x = 5 assert x > 10, “x is too small”
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Question 5 of 15
5. Question
When are `assert` statements typically used?
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Question 6 of 15
6. Question
Which option disables all assert statements at runtime?
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Question 7 of 15
7. Question
What will this print?
assert True, “This won’t show” print(“Hello”)
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Question 8 of 15
8. Question
Can `assert` be used without an error message?
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Question 9 of 15
9. Question
What does this do?
assert isinstance(“abc”, str)
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Question 10 of 15
10. Question
What does this code raise?
x = None assert x is not None, “Value is None”
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Question 11 of 15
11. Question
Which statement is true about assert usage?
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Question 12 of 15
12. Question
What happens if you run Python with `-O` (optimize)?
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Question 13 of 15
13. Question
Can `assert` be used inside a function?
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Question 14 of 15
14. Question
Which use case is best for `assert`?
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Question 15 of 15
15. Question
What does this statement mean?
assert x > 0, “Must be positive”
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Summary
This quiz explored the **Python assert statement**, including its syntax, usage for debugging, how it raises `AssertionError`, and how to disable it using `python -O`. Assertions help ensure code correctness during development and testing.
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