Thanks Geoff...
but I still have problem...I tried in svg and png and I have this message:
==
*** Open Babel Warning in PNG Format
Embedding in InChI format.
Use the -xO (uppercase O) option for a different format
==
*** Open Babel Warning
We added --highlight to provide this functionality. This is an
operation, and is used as follows:
import pybel
mol = pybel.readstring(smi, CC(=O)Cl)
highlighter = pybel._operations[highlight]
highlighter.Do(mol.OBMol, C(=O) green)
mol.write(svg, tmp.svg, opt={u:None, C:None}, overwrite=True)
