STY: autopep'd

unittests/test_parser.py

@@ -431,10 +431,10 @@ Experiment:
 
     assert entities["Experiment"].get_property("date") is not None
     # No value is set, so this has to be None
-    assert entities["Experiment"].get_property("date").value == None
+    assert entities["Experiment"].get_property("date").value is None
 
     assert entities["Experiment"].get_property("identifier") is not None
-    assert entities["Experiment"].get_property("identifier").value == None
+    assert entities["Experiment"].get_property("identifier").value is None
 
     assert entities["Experiment"].get_property("temperature") is not None
-    assert entities["Experiment"].get_property("temperature").value == None
+    assert entities["Experiment"].get_property("temperature").value is None