Question 1 of 5
What does all([]) return?
There is no false item in an empty iterable.
all() returns True when every item is truthy, and an empty iterable has no false item.
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Quiz
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Python aggregation built-ins: Quick Check
Check your understanding of all(), any(), min(), max(), and sum().
5 questions
~5 min
Knowledge check
Python aggregation built-ins: Quick Check
Check your understanding of all(), any(), min(), max(), and sum().
- 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 does any([0, "", 5]) return?
At least one item is truthy.
5 is truthy, so any() returns True.
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Question 3 of 5
What does min(words, key=len) return for ["pear", "fig", "kiwi"]?
The key controls comparison, but the original item is returned.
"fig" has the smallest length, and min() returns that original string.
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Question 4 of 5
When two items tie for the maximum, which one does max() return?
max() preserves encounter order for equal maxima.
When several items are maximal, max() returns the first one encountered.
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Question 5 of 5
What does sum([2, 3], 10) return?
start is included in the total.
sum() starts with 10 and adds 2 and 3, producing 15.
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Quiz results
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Review
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What does all([]) return?Hint used
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What does any([0, "", 5]) return?Hint used
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What does min(words, key=len) return for ["pear", "fig", "kiwi"]?Hint used
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When two items tie for the maximum, which one does max() return?Hint used
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What does sum([2, 3], 10) return?Hint used