update pep8/hacking and address failures

update to necessary hacking from global requirements and fix up the
linting failures.

Change-Id: Ie6baa9e1b97ea3e1b61a418b00b64d1be391866a

.gitreview

@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=openstack/os-traits.git

os_traits/__init__.py

@@ -21,12 +21,11 @@ __version__ = pbr.version.VersionInfo(
     'os_traits').version_string()
 
 # Conveniently import all the constants into the main module "namespace"
-from os_traits.const import *
+from os_traits.const import *  # noqa
 
 
 def get_symbol_names(prefix=None):
-    """
-    Returns the names of symbols of trait strings in the os_traits module,
+    """Returns the names of symbols of trait strings in the os_traits module,
     optionally filtered by a supplied prefix.
 
     :param prefix: Optional string prefix to filter by. e.g. 'hw:'
@@ -45,9 +44,8 @@ def get_symbol_names(prefix=None):
 
 
 def get_traits(prefix=None):
-    """
-    Returns the trait strings in the os_traits module, optionally
-    filtered by a supplied prefix.
+    """Returns the trait strings in the os_traits module, optionally filtered
+    by a supplied prefix.
 
     :param prefix: Optional string prefix to filter by. e.g. 'hw:'
     """
@@ -65,8 +63,7 @@ def get_traits(prefix=None):
 
 
 def check_traits(traits):
-    """
-    Returns a tuple of two trait string sets, the first set contains valid
+    """Returns a tuple of two trait string sets, the first set contains valid
     traits, and the second contains others.
 
     :param traits: An iterable contains trait strings.

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<0.11,>=0.10.0
+hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 
 coverage>=3.6 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD

tox.ini

@@ -59,6 +59,6 @@ commands = oslo_debug_helper {posargs}
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125
+ignore = E123,E125,H405
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build