Fix H307 errors in tacker code

This Patch fixes all H307 errors and enables this
test for all new patches to tacker.
"H307 like imports should be grouped together"

Change-Id: I48a41e2333c3286e8610158c89a84f6ca0ef1fcc
Related-Bug: 1515930

tacker/agent/rpc.py

@@ -19,7 +19,6 @@ import itertools
 
 from tacker.common import rpc_compat
 from tacker.common import topics
-
 from tacker.openstack.common import log as logging
 from tacker.openstack.common import timeutils
 

tacker/cmd/server.py

@@ -22,15 +22,13 @@ import sys
 
 import eventlet
 eventlet.monkey_patch()
-
 from oslo_config import cfg
 
 from tacker.common import config
-from tacker.openstack.common import service as common_service
-from tacker import service
-
 from tacker.openstack.common import gettextutils
 from tacker.openstack.common import log as logging
+from tacker.openstack.common import service as common_service
+from tacker import service
 gettextutils.install('tacker', lazy=True)
 
 LOG = logging.getLogger(__name__)

tacker/common/utils.py

@@ -29,9 +29,8 @@ import signal
 import socket
 import uuid
 
-import netaddr
-
 from eventlet.green import subprocess
+import netaddr
 from oslo_config import cfg
 
 from tacker.common import constants as q_const

tacker/context.py

@@ -18,7 +18,6 @@
 """Context: context for security/db session."""
 
 import copy
-
 import datetime
 
 from tacker.db import api as db_api

tacker/tests/unit/vm/test_monitor.py

@@ -15,9 +15,8 @@
 import json
 
 import mock
-import testtools
-
 from oslo_utils import timeutils
+import testtools
 
 from tacker.vm.monitor import VNFMonitor
 

tacker/vm/drivers/heat/heat.py

@@ -19,11 +19,10 @@
 import sys
 import time
 
-import yaml
-
 from heatclient import exc as heatException
 from oslo_config import cfg
 from toscaparser.utils import yamlparser
+import yaml
 
 from tacker.common import clients
 from tacker.common import log

tacker/vm/mgmt_drivers/openwrt/openwrt.py

@@ -18,9 +18,8 @@
 #
 # @author: Isaku Yamahata, Intel Corporation.
 
-import yaml
-
 from oslo_config import cfg
+import yaml
 
 from tacker.agent.linux import utils
 from tacker.common import log

tacker/vm/monitor.py

@@ -23,10 +23,9 @@ import inspect
 import threading
 import time
 
-import six
-
 from oslo_config import cfg
 from oslo_utils import timeutils
+import six
 
 from tacker.common import clients
 from tacker.common import driver_manager

tacker/vm/plugin.py

@@ -24,7 +24,6 @@ import copy
 import inspect
 
 import eventlet
-
 from oslo_config import cfg
 
 from tacker.api.v1 import attributes

tox.ini

@@ -73,12 +73,11 @@ commands = {posargs}
 # H237 module is removed in Python 3
 # H302 import only modules
 # H304 no relative imports
-# H307 like imports should be grouped together
 # H402 one line docstring needs punctuation
 # H405 multi line docstring summary not separated with an empty line
 # H904 Wrap long lines in parentheses instead of a backslash
 # TODO(marun) H404 multi line docstring should start with a summary
-ignore = E125,E126,E128,E129,E251,E265,E713,F402,F811,F812,H237,H302,H304,H307,H402,H404,H405,H904
+ignore = E125,E126,E128,E129,E251,E265,E713,F402,F811,F812,H237,H302,H304,H402,H404,H405,H904
 show-source = true
 builtins = _
 exclude = .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools,.ropeproject