Track 15 · Lesson 6 of 11

Command-line scripts

Turn automation scripts into command-line tools with argparse, a testable main() function and meaningful exit codes.

You will be able to

• Define positional arguments, options with types and defaults, and on/off flags with argparse
• Test an argument parser by passing an explicit list to parse_args
• Validate arguments with choices and custom type functions
• Structure a script around main(argv) that returns an exit code