... the right way (in my opinion). This is the basic template I always use. Not complicated, but the general formula might be useful to someone.
It allows you to pass arguments to a program with the use of flags, so they can be provided in any order. It has a 'help' flag (-h), will raise an error if no arguments are passed.
In this example one of the inputs (-a) is supposed to be a file. If the file is not provided, it uses Tkinter to open a simple 'get file' window dialog.
It then parses the other arguments out. Here I have assumed one argument is a string, one is a float, and one is an integer. If any arguments are not provided, it creates variables based on default variables. It prints everything it's doing to the screen.
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