Fix PEP8 E302 errors

Also add remaining skipped checks to HACKING

Change-Id: I0c4333ce29597e0a8a233af17c15bed2b4d0711f

HACKING.rst

@@ -5,6 +5,17 @@ OpenStack Style Commandments
   http://docs.openstack.org/developer/hacking/
 - Step 2: Read on
 
+Deviations from Global Hacking
+------------------------------
+
+The following checks are specifically skipped in OpenStackClient::
+
+* H305 - py2/py3 compatibility problems
+* H307 - py2/py3 compatibility problems
+* H402 - one line docstring ends in period
+* H904 - backslash continuation line
+
+
 General
 -------
 - thou shalt not violate causality in our time cone, or else

openstackclient/common/restapi.py

@@ -20,9 +20,9 @@ import logging
 import requests
 
 try:
-    from urllib.parse import urlencode
+    from urllib.parse import urlencode  # noqa
 except ImportError:
-    from urllib import urlencode
+    from urllib import urlencode  # noqa
 
 
 USER_AGENT = 'RAPI'

openstackclient/object/v1/lib/container.py

@@ -17,9 +17,9 @@
 """Object v1 API library"""
 
 try:
-    from urllib.parse import urlparse
+    from urllib.parse import urlparse  # noqa
 except ImportError:
-    from urlparse import urlparse
+    from urlparse import urlparse  # noqa
 
 
 def list_containers(

openstackclient/object/v1/lib/object.py

@@ -19,9 +19,9 @@
 import six
 
 try:
-    from urllib.parse import urlparse
+    from urllib.parse import urlparse  # noqa
 except ImportError:
-    from urlparse import urlparse
+    from urlparse import urlparse  # noqa
 
 
 def list_objects(

tox.ini

@@ -29,6 +29,6 @@ commands=
     python setup.py build_sphinx
 
 [flake8]
-ignore = H302,H305,H307,H402,H904
+ignore = H305,H307,H402,H904
 show-source = True
 exclude =  .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools