python argument command line

1import sys
2print("This is the name of the script:", sys.argv[0])
3print("Number of arguments:", len(sys.argv))
4print("The arguments are:" , str(sys.argv))
5
6#Example output
7#This is the name of the script: sysargv.py
8#Number of arguments in: 3
9#The arguments are: ['sysargv.py', 'arg1', 'arg2']

1#!/usr/bin/python
2
3import sys
4
5print('Number of arguments:', len(sys.argv), 'arguments.')
6print('Argument List:', str(sys.argv))

1#!/usr/bin/python
2
3import sys
4
5print 'Number of arguments:', len(sys.argv), 'arguments.'
6print 'Argument List:', str(sys.argv)

1#!/usr/bin/python
2
3import sys, getopt
4
5def main(argv):
6   inputfile = ''
7   outputfile = ''
8   try:
9      opts, args = getopt.getopt(argv,"hi:o:",["ifile=","ofile="])
10   except getopt.GetoptError:
11      print 'test.py -i <inputfile> -o <outputfile>'
12      sys.exit(2)
13   for opt, arg in opts:
14      if opt == '-h':
15         print 'test.py -i <inputfile> -o <outputfile>'
16         sys.exit()
17      elif opt in ("-i", "--ifile"):
18         inputfile = arg
19      elif opt in ("-o", "--ofile"):
20         outputfile = arg
21   print 'Input file is "', inputfile
22   print 'Output file is "', outputfile
23
24if __name__ == "__main__":
25   main(sys.argv[1:])

1import argparse
2
3parser = argparse.ArgumentParser(description='Process some integers.')
4parser.add_argument('integers', metavar='N', type=int, nargs='+',
5                   help='an integer for the accumulator')
6parser.add_argument('--sum', dest='accumulate', action='store_const',
7                   const=sum, default=max,
8                   help='sum the integers (default: find the max)')
9
10args = parser.parse_args()
11print(args.accumulate(args.integers))
12