Overview

Teaching: 15 min
Exercises: 15 min

Questions

• How can I write command-line utilities in Python?

Objectives

• Write programs that process command-line arguments in sys.argv directly.

• Write programs that use the argparse library to process command-line arguments.

• Write programs that read from standard input and write to standard output.

FIXME

Exercises

• Add extra options to an existing program.

Key Points

• Get command-line arguments from sys.argv.

• Read from sys.stdin and write to sys.stdout.

• Provide a meaningful usage message.