[2/3]Replace six.iteritems() with .items()

1.As mentioned in [1], we should avoid using
six.iteritems to achieve iterators. We can
use dict.items instead, as it will return
iterators in PY3 as well. And dict.items/keys
will more readable. 2.In py2, the performance
about list should be negligible, see the link [2].
[1] https://wiki.openstack.org/wiki/Python3
[2] http://lists.openstack.org/pipermail/openstack-dev/2015-June/066391.html

The patch list:
    1. cells.
    2. compute api.
    3. image.
    4. network.
    5. objects.
    6. scheduler.
    7. virt.
    8. other resources.

Partial-Implements: blueprint replace-iteritems-with-items

Change-Id: Ic6e469eb80ee1774de1374bb36f38b5134b6b311

1 files changed, 2 insertions, 2 deletions

diff --git a/nova/virt/libvirt/volume/volume.py b/nova/virt/libvirt/volume/volume.py
index fff56c7931..d4f0307bb3 100644
--- a/nova/virt/libvirt/volume/volume.py
+++ b/nova/virt/libvirt/volume/volume.py
@@ -17,7 +17,7 @@
 """Volume drivers for libvirt."""
 
 from oslo_log import log as logging
-import six
+
 
 import nova.conf
 from nova import exception
@@ -72,7 +72,7 @@ class LibvirtBaseVolumeDriver(object):
                          'read_iops_sec', 'write_iops_sec']
             specs = data['qos_specs']
             if isinstance(specs, dict):
-                for k, v in six.iteritems(specs):
+                for k, v in specs.items():
                     if k in tune_opts:
                         new_key = 'disk_' + k
                         setattr(conf, new_key, v)