Running the script without any options results in nothing displayed to stdout. Not so useful. The second one starts to display the usefulness of the argparse module. We have done almost nothing, but ...
The argparse module makes it easy to write user-friendly command-line interfaces. Specifically, it automatically generates help and usage messages and issues errors when users give the program invalid ...
Not every programmer likes creating GUI code. Most hacker types don’t mind a command line interface, but very few ordinary users appreciate them. However, if you write command line programs in Python, ...
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