Enable H201 - don't throw bare exceptions

I agree - bare except is bad - it can cause ctrl-c to stop working,
which is totally evil. (I mean, unless that is the intent, in which case
it's the right thing to do. None of these cases are cases when we desire
ctrl-c to stop working)

Change-Id: Ieffa26e8da77199c9ef7238a6c9f0704fc581ba6

shade/openstackcloud.py

@@ -7044,7 +7044,7 @@ class OpenStackCloud(_normalize.Normalizer):
             return self.manager.submit_task(_tasks.RecordSetGet(
                 zone=zone,
                 recordset=name_or_id))
-        except:
+        except Exception:
             return None
 
     def search_recordsets(self, zone, name_or_id=None, filters=None):

shade/operatorcloud.py

@@ -241,7 +241,7 @@ class OperatorCloud(openstackcloud.OpenStackCloud):
                         self.manager.submit_task(
                             _tasks.MachinePortDelete(
                                 port_id=uuid))
-                    except:
+                    except Exception:
                         pass
             finally:
                 self.manager.submit_task(

shade/tests/functional/test_cluster_templates.py

@@ -104,7 +104,7 @@ class TestClusterTemplate(base.BaseFunctionalTestCase):
         if self.ct:
             try:
                 self.user_cloud.delete_cluster_template(self.ct['name'])
-            except:
+            except Exception:
                 pass
 
         # delete keypair

tox.ini

@@ -69,7 +69,7 @@ commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasen
 [flake8]
 # The string of H ignores is because there are some useful checks
 # related to python3 compat.
-ignore = H3,H4,H5,H6,H7,H8,H103,H201
+ignore = H3,H4,H5,H6,H7,H8,H103
 show-source = True
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build