Python3 module to parse CLI parameters. argparse seemed too heavy-duty for some simple tools I was writing, so this aims to be something (appropriately) simpler. Feedback welcome!

• Single char parameters that are preceded by a single '-' (as flags or values)
  • '-f'
  • '-v=5'
• Named parameters that are preceded by '--' (as flags or values)
  • '--flag'
  • '--value=5'
• Anonymous values are parameters that have no keys (think cp file1 file2). In the returned map, these values are appended to a list with a key of '' like {'': ['file1', 'file2']}

• Flags
  • returned dictionary element will have a value of True (planning to specify False for strict parameters)
• String
• List of Strings, comma separated
  • cannot have spaces between the values or commas (5,6,7,yabba,dabba,doo)

NOTE: Strings or lists can follow full named keys with a space or a '='. They can follow abbeviated keys without space necessary. For example: -v4 -fw 5 -x=6 --named_val 7 --named_val2=abba would yield: {'v': '4', 'f': True, 'w': '5', 'x': '6', 'named_val': '7', '--named_val2': 'abba' }

import sys
import pyparams

params = get_params(sys.argv[1:])
port = params['port']
host = params['host']
verbose = params['v'] or params['verbose']

There are two intended uses that both accept a string of all the parameters joined by whitespace:

• Loose Parameter Parser: returns a dictionary of key/value pairs of all parameters passed in
• Strict Parameter Parser: accepts a dictionary of recognized keys (and expected types), and returns a dict matching those keys, or will throw an exception if an invalid parameter is found
  • YET TO BE IMPLEMENTED