Resolve and enable H702 PEP8 rule

H702  Formatting operation should be outside of localization method call

Change-Id: I83e3a7e3d7f19d3238ee91dcab730d55d479a65e

murano/common/config.py

@@ -255,7 +255,7 @@ def setup_logging():
             return
         else:
             raise RuntimeError(_("Unable to locate specified logging "
-                                 "config file: %s" % CONF.log_config))
+                                 "config file: %s") % CONF.log_config)
 
     root_logger = logging.root
     if CONF.debug:
@@ -354,8 +354,9 @@ def load_paste_app(app_name=None):
 
         return app
     except (LookupError, ImportError) as e:
-        msg = _("Unable to load %(app_name)s from "
-                "configuration file %(conf_file)s. \nGot: %(e)r",
-                {'conf_file': conf_file, 'app_name': app_name, 'e': e})
+        msg = _("Unable to load %(app_name)s from configuration file"
+                " %(conf_file)s. \nGot: %(e)r") % {'conf_file': conf_file,
+                                                   'app_name': app_name,
+                                                   'e': e}
         logger.error(msg)
         raise RuntimeError(msg)

murano/common/statservice.py

@@ -93,4 +93,4 @@ class StatsCollectingService(service.Service):
             self._stats_db.update(self._hostname, stats)
         except Exception as e:
             LOG.error(_("Failed to get statistics object "
-                        "form a database. %s" % e))
+                        "form a database. {0}").format(e))

murano/common/wsgi.py

@@ -939,7 +939,7 @@ class FormDataDeserializer(TextDeserializer):
     def _from_json(self, datastring):
         value = datastring
         try:
-            LOG.debug(_("Trying deserialize '{0}' to json".format(datastring)))
+            LOG.debug(_("Trying deserialize '{0}' to json").format(datastring))
             value = jsonutils.loads(datastring)
         except ValueError:
             LOG.debug(_("Unable deserialize to json, using raw text"))

tox.ini

@@ -40,10 +40,9 @@ commands = oslo-config-generator --config-file etc/oslo-config-generator/murano.
 [flake8]
 # H233  Python 3.x incompatible use of print operator
 # H405 Multi line docstring summary not separated with an empty line
-# H702 Argument to _ must be just a string
 # H904  Wrap long lines in parentheses instead of a backslash
 
-ignore = H233,H405,H702,H904
+ignore = H233,H405,H904
 show-source = true
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,tools