# Use 'is not None' to correctly detect that result=0 is a found value (not falsy-failed)

Canonical URL: <https://datadriven.io/problems/use-is-not-none-to-correctly-detect-that-result0-is-a-fou-7ad87806>

Domain: Python · Difficulty: medium

## Problem

Use 'is not None' to correctly detect that result=0 is a found value (not falsy-failed). Repeat the check when result is None.

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