Update hacking for Python3

The repo is Python 3 now, so update hacking to version 2.0 which
supports Python 3.

Fix problems found.

Update local hacking checks for new flake8.

Change-Id: I2683bc1a7c962da137de4b77aac450f08d1f6c4a

murano_tempest_tests/tests/api/service_broker/base.py

@@ -99,7 +99,7 @@ class BaseServiceBrokerTest(test.BaseTestCase):
         while start_status:
             status = self.service_broker_client.get_last_status(instance_id)
             if status == start_status and time.time() - start_time > timeout:
-                    raise exceptions.TimeoutException
+                raise exceptions.TimeoutException
             elif status != start_status:
                 try:
                     parced_stat = status['state']

test-requirements.txt

@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-hacking<0.13,>=0.12.0 # Apache-2.0
+hacking>=2.0,<2.1.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
 python-subunit>=1.0.0 # Apache-2.0/BSD

tox.ini

@@ -38,6 +38,6 @@ commands = oslo_debug_helper {posargs}
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125
+ignore = E123,E125,W504
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build