argparse

argparse is Python's standard library module for parsing command-line arguments. It simplifies the creation of user-friendly command-line interfaces by allowing programs to define required arguments and options, automatically generating help messages, and handling argument parsing and validation. It has been part of the standard library since Python 2.7 and 3.2. The PyPI package (version 1.4.0) is a backport primarily for older Python versions (< 2.7 or < 3.2) and is currently archived.