argparse: parse command-line arguments in Python
If you need to make a very simple command-line interface and it doesn't need to be friendly, you can read sys.argv to manually process the arguments coming into your program.
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00:00 Parsing command-line arguments
00:20 Why not use sys.argv to get command-line arguments?
01:03 Comparing argparse to manually reading sys.argv
01:45 Accepting optional command-line arguments
02:50 Optional command-line arguments without a value
03:22 Adding documentation for command-line interface using argparse
03:55 Use argparse for making friendly command-line interfaces
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