Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the logic errors pattern
The wrong operator, an inverted condition, a formula the right way round but backwards.
What went wrong: any() needs only one number to be positive. 1 is positive, so it returns True.
The fix: return all(n > 0 for n in nums)
Remember: any() means "at least one". all() means "every one".
The pattern behind it: logic errors.
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<iframe src="https://trybughunt.com/embed/515e0069-89fe-470b-9c3c-fcde09785aba" title="Debugging challenge: "All positive" check accepts a negative number" width="100%" height="580" loading="lazy" style="border:1px solid #d4d4d8;border-radius:12px;max-width:760px"></iframe>
<p style="font-size:14px">Debugging challenge from <a href="https://trybughunt.com/challenges/515e0069-89fe-470b-9c3c-fcde09785aba">TryBugHunt</a></p>