Question 1 of 5
Which result lets `assert total >= 0` continue without raising an exception?
A true assertion condition allows execution to continue.
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Quiz
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Quick Check: Python Assert Statements
Check your understanding of assert conditions, AssertionError, assertion messages, intended use, and optimization.
5 questions
~5 min
Knowledge check
Quick Check: Python Assert Statements
Check your understanding of assert conditions, AssertionError, assertion messages, intended use, and optimization.
- Stuck? Each question has an optional hint.
- Skip a hard question and review it before your results.
- Questions and answer options can shuffle between attempts.
You can retake this quiz whenever you like.
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Question 2 of 5
What exception does a failed assert statement raise?
A false assertion condition raises AssertionError.
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Question 3 of 5
In `assert score >= 50, "score too low"`, what is the second expression for?
The expression after the comma supplies diagnostic information for a failed assertion.
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Question 4 of 5
Which use best fits assert?
Assertions are intended for assumptions and debugging checks, not mandatory external-input validation.
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Question 5 of 5
What can happen to assert statements when Python is started with `-O`?
Python's official reference states that assert code is omitted under optimization and __debug__ is false.
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Quiz results
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Review
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Which result lets `assert total >= 0` continue without raising an exception?Hint used
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What exception does a failed assert statement raise?Hint used
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In `assert score >= 50, "score too low"`, what is the second expression for?Hint used
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Which use best fits assert?Hint used
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What can happen to assert statements when Python is started with `-O`?Hint used