Works for me, you probably have to update to the latest svn version.
In [8]: import Chem
In [9]: print Chem.MolToMolBlock(Chem.MolFromSmiles("CCCC"))
RDKit
4 3 0 0 0 0 0 0 0 0999 V2000
0.0000 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0
0.0000 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0
0.0000 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0
0.0000 0.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0
1 2 1 0
2 3 1 0
3 4 1 0
M END
On Tue, Apr 22, 2008 at 1:25 PM, Noel O'Boyle <[email protected]> wrote:
> I've done it again :-/
>
> >>> print Chem.MolToMolBlock(Chem.MolFromSmiles("CCCC"))
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> RuntimeError: Pre-condition Violation
>
> Noel
>
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