bumblebee-status/bumblebee/modules/libvirtvms.py

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"""Displays count of running libvirt VMs.
Required the following python packages:
* libvirt
* sys
"""
import sys
import libvirt
import bumblebee.input
import bumblebee.output
import bumblebee.engine
class Module(bumblebee.engine.Module):
def __init__(self, engine, config):
super(Module, self).__init__(engine, config,
bumblebee.output.Widget(full_text=self.status)
)
self._status = self.status
engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
cmd="virt-manager")
def update(self, widgets):
self._status = self.status
def status(self, _):
conn = None
conn = libvirt.openReadOnly(None)
if conn == None:
print ('Failed to open connection to the hypervisor')
return "VMs %s" % (conn.numOfDomains())