Fix pylint warnings

zoe_api/web/ajax.py

@@ -46,7 +46,6 @@ class AjaxEndpointWeb(ZoeRequestHandler):
             execution = self.api_endpoint.execution_list(uid, role, name='aml-lab')
             if len(execution) == 0:
                 exec_id = self.api_endpoint.execution_start(uid, role, 'aml-lab', app_descr)
-                pass
             else:
                 execution = execution[0]
                 exec_id = execution.id

zoe_cmd/entrypoint.py

@@ -159,8 +159,8 @@ def exec_get_cmd(args):
             print('Exposed endpoints:')
         else:
             print('This ZApp does not expose any endpoint')
-        for ep in endpoints:
-            print(' - {}: {}'.format(ep[0], ep[1]))
+        for endpoint in endpoints:
+            print(' - {}: {}'.format(endpoint[0], endpoint[1]))
 
         print()
         for c_id in execution['services']: