Nearly all command line Python programs use argparse to simplify picking options and arguments off the command line as well as providing some help. ... For example the browse buttons to select files.

This can be seen in the example below where we see the command line arguments for the Windows del command. In Linux and macOS, the programs shipped with the OS will typically use a --help argument ...

Command line options contrary to command line data arguments—start with a prefix that uniquely identifies them. Prefix examples include a dash ( - ) on Unix platforms for options like -a or a ...

Thankfully, Python has a number of modules to deal with command-line arguments. My personal favorite is OptionParser. OptionParser is part of the optparse module that is provided by the standard ...

To run a Python script with the py launcher, simply substitute py and its command-line switches for python or python3. For instance, here is the command typically used to upgrade pip by running it ...