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Alex Rivera
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sys.argv takes arguments at the shell command line when running a program. How do I make these arguments optional? I know I can use try - except . But this forces you to insert either no extra arguments or all extra arguments, unless you nest more try - except which makes the code look much less readable. Edit Suppose I would want the following functionality, how do I implement this? $ python program.py add Peter 'Peter' was added to the list of names. This add argument (and not --add ) is optional such that $ python program.py just runs the program normally.
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