I *strongly* recommend contacting the openbabel mailing list rather than me
personally. My e-mail box is horrendous.
In this case, I suspect you either have multiple versions of Python installed,
or the active python is not able to load the _openbabel.so correctly.
I usually see this sort of
Ugh. Sorry, I don't think you got my reply.
The cyclobutadione bug is a broader one with Kekulization. The problem is
that if aromaticity is not detected, the Kekule code should attempt to derive
approximate alternating double bond structures. The code is in kekule.cpp, but
it's definitely a
Looks like that might have been fixed.. the parser will throw an error on the
dot but actually parses and matches it okay if component grouping is
specified. The component grouping isn’t actually checked but the disconnected
query matches as expected. Might take a closer look this weekend.
