Unique ID generator for prior project.

uid.py

#!/usr/bin/env python 
'''
Generate a unique primary key ID based on a combination of 
subject, session, and row (optionally) IDs.

'''

epilog = '''

Note that one can use positional args instead of named args.
Just be sure to specify the positional args in the appropriate 
order: subject session [row]

examples:

  $ uid --subj 22 --sess 33 --row 44
  10223300044

  $ uid 22 33 44
  10223300044

  $ uid --subj 22 --sess 33
  102233

  $ uid 22 33
  102233

'''
import argparse
from ldp.util import PrimaryKey

parser = argparse.ArgumentParser(description=__doc__, epilog=epilog, 
                                 formatter_class=argparse.RawDescriptionHelpFormatter)

parser.add_argument('--subj', type=int)
parser.add_argument('--sess', type=int)
parser.add_argument('--row', type=int)
parser.add_argument('args', nargs='*', type=int)

args = parser.parse_args()

pk = PrimaryKey()

if args.subj and args.sess:
    print pk(args.subj, args.sess, args.row)
else:
    print pk(*args.args)