[Libvir] [PATCH] Python bindings now generate exceptions for libvirt errors (second version)

Second version of this patch. The difference is that this one adds the optional argument libvirtError (..., conn=self) for functions which are members of the virConnect class. Rich. -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 "[Negative numbers] darken the very whole doctrines of the equations and make dark of the things which are in their nature excessively obvious and simple" (Francis Maseres FRS, mathematician, 1759)