Chapter 65 Quiz

Before taking the quiz, verify that you can do each of these without looking at the lessons:

• Predict what sys.argv contains for a given command
• Create an argparse parser with positional and optional arguments
• Set up subcommands with add_subparsers and dispatch with set_defaults
• Use sys.exit() and sys.stderr to report errors properly
• Read piped input from sys.stdin and detect pipe vs interactive mode
• Configure a [project.scripts] entry point in pyproject.toml

If any feel uncertain, revisit the specific lesson before continuing.

Test your understanding of the full Unix-style CLI tool chain by evaluating argument parsing, error handling, composability, and entry point configuration.

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