Python2 script to convert a smilesstring to a IUPAC name using Cinfony.

smi2name

#!/usr/bin/env python2
from sys import argv, exit
from cinfony import webel, pybel

if len(argv) != 2:
    print "Usage: smi2name <SMILES>"
    exit(1)

smiles_string = argv[1]

mol = pybel.readstring("smi", smiles_string)
name = webel.Molecule(mol).write("iupac")

if len(name) > 0:
    print name
else:
    print "ERROR: couldn't parse name for SMILES:", smiles_string