Re: [cx-oracle-users] best way to get oracle error number from exception?

[Anthony T. <ant...@gm...>]

No particularly good reason -- it just happens to be a way of
indicating that there should be one and only one entry in the list. An
exception is raised if there is not whereas args[0] does not raise the
exception. Its an open question which is the better code. Any further
comments?

On 10/24/05, Guido van Rossum <gu...@el...> wrote:
> > try:
> >     cursor.execute("select 1 / 0 from dual")
> > except cx_Oracle.DatabaseError, e:
> >     print "Exception:", e   # this is what you are looking at
> > right now
> >     errorObj, =3D e.args       # this is the actual "error"
>
> This is overly subtle.  Why not write
>
>     errorObj =3D e.args[0]
>
> ?   I can't think of a situation where that wouldn't work and the former
> would.
>
> > that cx_Oracle raises
> >     print "ErrorCode:", errorObj.code
> >     print "ErrorMessage:", errorObj.message
>
> --Guido van Rossum
>
>
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