Update hacking for Python3

The repo is Python 3 now, so update hacking to version 3.0 which
supports Python 3.

Blacklist W503, W504
Fix other problems found

Change-Id: Ic0391ae45b9d6d1ee5e2c1df81d85e655250a51d

pycadf/cadftaxonomy.py

@@ -89,6 +89,7 @@ OUTCOME_TAXONOMY = frozenset([
 def is_valid_outcome(value):
     return value in OUTCOME_TAXONOMY
 
+
 SERVICE_SECURITY = 'service/security'
 SERVICE_KEYMGR = 'service/security/keymanager'
 ACCOUNT_USER = 'service/security/account/user'

pycadf/cadftype.py

@@ -35,6 +35,7 @@ VALID_EVENTTYPES = frozenset([
 def is_valid_eventType(value):
     return value in VALID_EVENTTYPES
 
+
 # valid cadf:Event record "Reporter" roles
 REPORTER_ROLE_OBSERVER = 'observer'
 REPORTER_ROLE_MODIFIER = 'modifier'

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 already pins down pep8, pyflakes and flake8
-hacking<0.11,>=0.10.0
+hacking>=3.0,<3.1.0 # Apache-2.0
 flake8-docstrings==0.2.1.post1 # MIT
 
 coverage!=4.4,>=4.0 # Apache-2.0

tox.ini

@@ -54,7 +54,9 @@ show-source = True
 # D208: Docstring is over-indented
 # D400: First line should end with a period
 # D401: First line should be in imperative mood
-ignore = H405,D100,D101,D102,D103,D104,D105,D200,D202,D203,D204,D205,D208,D400,D401
+# W503 line break before binary operator
+# W504 line break after binary operator
+ignore = H405,D100,D101,D102,D103,D104,D105,D200,D202,D203,D204,D205,D208,D400,D401,W503,W504
 exclude = .tox,dist,doc,*.egg,build
 
 [testenv:lower-constraints]