#!/usr/bin/env python
"""
RDF Utilities (using rdflib)
Author: Sean B. Palmer, inamidst.com
Licence: GPL 2; share and enjoy!
Requirement: http://rdflib.net/
"""

import sys, re
from rdflib.TripleStore import TripleStore
from rdflib.Namespace import Namespace
from rdflib.URIRef import URIRef as URI
from rdflib.Literal import Literal
from rdflib.BNode import BNode as bNode

# class Namespace(unicode): 
#    def __getattr__(self, attr): 
#       return URI(self + attr)
#    def __getitem__(self, item): 
#       return URI(self + item)

class Graph(TripleStore): 
   def theObject(self, subj, pred): 
      objects = tuple(self.objects(subj, pred))
      if len(objects) == 1: 
         return objects[0]
      elif len(objects) == 0: 
         return None
      else: raise "Some kind of an error"

def main(): 
   print __doc__

if __name__=="__main__": 
   main()