• Create simple code mainparams.py:

  import sys
  nargs = len(sys.argv)
  outpath = ''
  paramename = 'default'
  print sys.argv
  if nargs > 1:
      paramename = sys.argv[1]
  print 'paramename = ', paramename

• run:

  mainparams.py hello

  output:

  ['D:\\projects\\python\\mainparams.py', 'hello']
  paramename =  hello

• Simple example for parsing Json:

  import json
  json_string = '{"first_name": "Guido", "last_name":"Rossum"}'
  parsed_json = json.loads(json_string)
  print parsed_json

  output:return python object

  {u'first_name': u'Guido', u'last_name': u'Rossum'}

{u'first_name': u'Guido', u'last_name': u'Rossum'}