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Python argparse Examples

Commandline Handling Example

parser = argparse.ArgumentParser(prog='myprogram')

# Add GNU style arguments
parser.add_argument('-m', '--mode', default='exterminate', help='run mode <seek|locate|exterminate> (default: exterminate)')

# Add positional parameter
parser.add_argument('param1', help='Mandatary 1st positional parameters')
parser.add_argument('param2', nargs='?', help='Optional 2nd positional parameter')

args = parser.parse_args()

# Access input
print(args.mode)
print(args.param1)
print(args.param2)      # will be None when not set

Multi-line extra text

parser = argparse.ArgumentParser(
  prog='myprogram',
  formatter_class=argparse.RawDescriptionHelpFormatter,
  epilog="""
Multi-
line-
string
  """
)