Python - Argument Parser
Package argparse is a convenient utility for argument parsing, in which class ArgumentParser is defined. Concerning its usage, a simple example can be given as follows.
from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter args = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter, conflict_handler='resolve') # Arguments in the root args.add_argument("--ARGUMENT1", type=int, metavar='', help="DESCRIPTION OF ARGUMENT1", default=0) # Arguments in groups grp1 = args.add_argument_group("GROUP1", "DESCRIPTION OF GROUP1") grp1.add_argument("--ARGUMENT1INGROUP1", type=float, metavar='', help="DESCRIPTION OF ARGUMENT1 IN GROUP1", default=0) grp1.add_argument("--ARGUMENT2INGROUP1", type=int, nargs=2, metavar='', help="DESCRIPTION OF ARGUMENT2 IN GROUP1", default=[0, 1]) grp1.add_argument("--ENABLEFEATURE1", help="DESCRIPTION OF ENABLEFEATURE1 IN GROUP1", action="store_true") ... grp2 = args.add_argument_group("GROUP2", "DESCRIPTION OF GROUP2") ... # Parse the arguments para = args.parse_args() # Use the arguments parsed arg1 = para.ARGUMENT1 # arg1 is an integer arg1_grp1 = para.ARGUMENT1INGROUP1 # arg1_grp1 is a float arg2_grp1 = para.ARGUMENT2INGROUP1 # arg2_grp2 is a list comprising of 2 integers ... feature1_enabler = para.ENABLEFEATURE1 # feature1_enabler is a boolean