Fix some pep8 errors

- F632
- E305
- E117

Change-Id: Id08a49c401a11a6f43ff132e798bdb1088ddb75d

tripleoclient/heat_launcher.py

@@ -280,7 +280,7 @@ class HeatContainerLauncher(HeatBaseLauncher):
             # 137 means the container was killed by 'kill -9' which happens
             # then we're done creating the Heat stack, so we consider it
             # as successful.
-            if e.returncode is not 137:
+            if e.returncode != 137:
                 raise Exception('heat_all container did not run as expected.')
 
     def heat_db_sync(self):

tripleoclient/v1/undercloud_config.py

@@ -112,6 +112,7 @@ def _load_subnets_config_groups():
         else:
             CONF.register_opts(config.get_remote_subnet_opts(), group=g)
 
+
 LOG = logging.getLogger(__name__ + ".undercloud_config")
 
 

tripleoclient/v1/undercloud_preflight.py

@@ -34,6 +34,7 @@ from tripleoclient import utils
 class FailedValidation(Exception):
     pass
 
+
 CONF = cfg.CONF
 
 # We need 8 GB, leave a little room for variation in what 8 GB means on