Without the change to libvirt-override-api.xml generator.py would generate the following function header: def guestVcpus(self, params, nparams, flags=0): Since @params and @nparams are output-only in C and the python C implementation actualy creates a dict from them we should not need to pass them. Add the API definition to drop the two unnecessary args: def guestVcpus(self, flags=0): The code did not work at all until this change as the C impl expects only two arguments but the python required use of four. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1377071 --- libvirt-override-api.xml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libvirt-override-api.xml b/libvirt-override-api.xml index 49de122..50250bc 100644 --- a/libvirt-override-api.xml +++ b/libvirt-override-api.xml @@ -698,5 +698,11 @@ <arg name='flags' type='unsigned int' info='extra flags; not used yet, so callers should always pass 0'/> <return type='char *' info="dictionary of domain interfaces along with their MAC and IP addresses"/> </function> + <function name='virDomainGetGuestVcpus' file='python'> + <info>returns a dictionary containing information regarding guest vcpus</info> + <arg name='dom' type='virDomainPtr' info='pointer to the domain'/> + <arg name='flags' type='unsigned int' info='extra flags; not used yet, so callers should always pass 0'/> + <return type='int' info="dictionary of vcpu data returned by the guest agent"/> + </function> </symbols> </api>