Web Reference: 2 days ago · While argparse is the default recommended standard library module for implementing basic command line applications, authors with more exacting requirements for exactly how their command line applications behave may find it doesn’t provide the necessary level of control. Jul 14, 2014 · I would like to have a optional argument that will default to a value if only the flag is present with no value specified, but store a user-specified value instead of the default if the user specifies a value. Python's argparse module provides a powerful way to create command-line interfaces. This guide explains how to use nargs='?', const, and default in argparse to create optional arguments that have default values if the argument is either not provided at all, or is provided without a value.
YouTube Excerpt: In this video today, we learn how to do argument parsing for command line applications in
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