Use 'and' as a guard: 'data and data.upper()' safely skips .upper() when data is None

A medium Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

medium

Problem

Use 'and' as a guard: 'data and data.upper()' safely skips .upper() when data is None. Observe the result for both None and 'hello'.

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