[cx-oracle-users] Is it possible to get an error number from a cx_Oracle.Exception object?

[Moore, P. <Pau...@at...>]

I want to trap a particular Oracle error (904, invalid column name).
At the moment, I'm doing that by

    except cx_Oracle.DatabaseError, e:
        if str(e).startswith("ORA-00904"):
            # handle this error

While I can't imagine that the string format of the error will ever
change enough to make this invalid, I'd prefer to check the error number
directly. But I can't see a way of getting that number.

Am I missing it, or is this not possible?

Thanks,
Paul.