CLI Design · interview question
A bug appears around argparse and commands. What is the strongest first debugging move?
Multiple choiceHardchapter-6-curatedpremiumcli-designargparse-and-commands
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("--file", required=True)
args = parser.parse_args()Answer and explanation
Correct answer
B. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.
Why
That approach is reliable because it creates evidence. A CLI with unclear or inconsistent arguments becomes harder to use than the script it replaced.
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