Expected 2 blank lines but only one

Surround top-level function and class definitions
with two blank lines.

PEP 8: expected 2 blank lines, found 1

Change-Id: Ifc7eb671d63b5551e22573fac8a7697bc4838f5a

lib/Connmon.py

@@ -15,6 +15,7 @@ import os
 import logging
 import shutil
 
+
 class Connmon(object):
 
     def __init__(self, config):

lib/Yoda.py

@@ -30,6 +30,7 @@ except ImportError:
     ostag = None
 from collections import deque
 
+
 class Yoda(WorkloadBase.WorkloadBase):
 
     def __init__(self, config):

rally/rally-plugins/gnocchi/gnocchi.py

@@ -268,6 +268,7 @@ class BrowbeatGnocchi(scenario.OpenStackScenario):
     def _status_get(self, gnocchi_client, detailed=False):
         return gnocchi_client.status.get(detailed)
 
+
 @context.configure(name="browbeat_gnocchi_metric_list", order=350)
 class BrowbeatGnocchiMetricList(context.Context):
     """Grabs list of metric ids from Gnocchi for use with getting aggregates/measures."""

rally/rally-plugins/nova-create-pbench-uperf/nova-create-pbench-uperf.py

@@ -26,6 +26,7 @@ from Elastic import Elastic
 
 LOG = logging.getLogger(__name__)
 
+
 class BrowbeatPlugin(neutron_utils.NeutronScenario,
                      vm_utils.VMScenario,
                      scenario.Scenario):

rally/rally-plugins/nova/nova.py

@@ -16,6 +16,7 @@ from rally.plugins.openstack.scenarios.nova import utils as nova_utils
 from rally.task import types
 from rally.task import validation
 
+
 @types.convert(image={"type": "glance_image"},
                flavor={"type": "nova_flavor"})
 @validation.image_valid_on_flavor("flavor", "image")

rally/rally-plugins/subnet-router-create/subnet-router-create.py

@@ -15,6 +15,7 @@ from rally.plugins.openstack.scenarios.neutron import utils as neutron_utils
 from rally.task import types
 from rally.task import validation
 
+
 class BrowbeatPlugin(neutron_utils.NeutronScenario,
                      scenario.Scenario):