[virt-tools-list] PendingDeprecationWarning

[george]

  # virt-manager --version
0.8.5

i try to start virt-manager and get warning message:
  # virt-manager
/usr/lib/python2.7/site-packages/dbus/types.py:6: 
PendingDeprecationWarning: The CObject type is marked Pending 
Deprecation in Python 2.7.  Please use capsule objects instead.
   from _dbus_bindings import ObjectPath, ByteArray, Signature, Byte,\

Then virt-manager is started and similar works correctly..
But that this error means?