Argparse positional arguments

Python argument parser default value

parser.add_argument("-v", "--verbose", action="store_true",
                    default="your default value", help="verbose output")

Argparse positional arguments

import argparse

parser = argparse.ArgumentParser(description='Process some integers.')
# Positional arguments
parser.add_argument('integers', metavar='N', type=int, nargs='+',
                    help='an integer for the accumulator')
# Optional arguments
parser.add_argument('--sum', dest='accumulate', action='store_const',
                    const=sum, default=max,
                    help='sum the integers (default: find the max)')

Source: docs.python.org

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