diff --git a/neutron/agent/linux/openvswitch_firewall/rules.py b/neutron/agent/linux/openvswitch_firewall/rules.py
index a6f2e1773dc..a195832ac26 100644
--- a/neutron/agent/linux/openvswitch_firewall/rules.py
+++ b/neutron/agent/linux/openvswitch_firewall/rules.py
@@ -288,7 +288,7 @@ def create_icmp_flows(flow_template, rule):
 
 
 def _flow_priority_offset_from_conj_id(conj_id):
-    "Return a flow priority offset encoded in a conj_id."
+    """Return a flow priority offset encoded in a conj_id."""
     # A base conj_id, which is returned by ConjIdMap.get_conj_id, is a
     # multiple of 8, and we use 2 conj_ids per offset.
     return conj_id % 8 // 2
diff --git a/neutron/agent/linux/tc_lib.py b/neutron/agent/linux/tc_lib.py
index 3719f0709ef..5844a24ac8d 100644
--- a/neutron/agent/linux/tc_lib.py
+++ b/neutron/agent/linux/tc_lib.py
@@ -136,7 +136,6 @@ def _calc_min_rate(burst):
     rate (bytes/sec) accepted by Pyroute2. This method is based on
     pyroute2.netlink.rtnl.tcmsg.common.calc_xmittime
 
-    :param rate: (int) rate in bytes per second.
     :param burst: (int) burst in bytes.
     :return: (int) minimum accepted rate in bytes per second.
     """
diff --git a/neutron/agent/rpc.py b/neutron/agent/rpc.py
index 1bb9733e233..28bb07559e2 100644
--- a/neutron/agent/rpc.py
+++ b/neutron/agent/rpc.py
@@ -106,7 +106,7 @@ class PluginReportStateAPI(object):
 
 
 class PluginApi(object):
-    '''Agent side of the rpc API.
+    """Agent side of the rpc API.
 
     API version history:
         1.0 - Initial version.
@@ -127,7 +127,7 @@ class PluginApi(object):
               - update_device_up
               - update_device_list (indirectly, called from update_device_down
                 and update_device_up)
-    '''
+    """
 
     def __init__(self, topic):
         target = oslo_messaging.Target(topic=topic, version='1.9')
diff --git a/neutron/api/extensions.py b/neutron/api/extensions.py
index 2154486d589..37706d12cfa 100644
--- a/neutron/api/extensions.py
+++ b/neutron/api/extensions.py
@@ -45,7 +45,7 @@ _NOVA_CONNECTION = None
 
 
 def register_custom_supported_check(alias, f, plugin_agnostic=False):
-    '''Register a custom function to determine if extension is supported.
+    """Register a custom function to determine if extension is supported.
 
     Consequent calls for the same alias replace the registered function.
 
@@ -54,7 +54,7 @@ def register_custom_supported_check(alias, f, plugin_agnostic=False):
     :param plugin_agnostic: if False, don't require a plugin to claim support
     with supported_extension_aliases. If True, a plugin must claim the
     extension is supported.
-    '''
+    """
 
     EXTENSION_SUPPORTED_CHECK_MAP[alias] = f
     if plugin_agnostic:
diff --git a/neutron/cmd/sanity/checks.py b/neutron/cmd/sanity/checks.py
index ad56987eca5..c19610be333 100644
--- a/neutron/cmd/sanity/checks.py
+++ b/neutron/cmd/sanity/checks.py
@@ -161,7 +161,7 @@ def ofctl_arg_supported(cmd, **kwargs):
     """Verify if ovs-ofctl binary supports cmd with **kwargs.
 
     :param cmd: ovs-ofctl command to use for test.
-    :param **kwargs: arguments to test with the command.
+    :param kwargs: arguments to test with the command.
     :returns: a boolean if the supplied arguments are supported.
     """
     br_name = common_utils.get_rand_device_name(prefix='br-test-')