The libvirt error functions are designed to give more detailed information about what caused a failure in the case that a normal libvirt function or method returns an error. An important thing to note about Python libvirt error reporting is that errors are stored on a per-thread basis and not per connection.
The libvirtError Class
The libvirt Python module defines a standard exception class called
libvirtError
that can be subclassed to add additional functionality when raising a libvirt exception. Listing 8-1 shows a partial definition of the libvirtError class definition.
class ...
