diff --git a/tests/test_query_version.py b/tests/test_query_version.py
index dc8c6fb1ce93b53debd507175352f8f835709671..561b46013981ca2d9315d910d430078c7ce25e69 100644
--- a/tests/test_query_version.py
+++ b/tests/test_query_version.py
@@ -52,20 +52,20 @@ TEST_REC_1 = (db.Record("TestRecord1", description="v1")
               .add_property(TEST_PROP_DATE, "2021-12")
               .add_property(TEST_REF_RT, TEST_REF_1)
               .add_property(TEST_PROP_BOOLEAN, True)
-              .add_property(TEST_PROP_NAME, "Alias1")
-
-TEST_PROP_TEXT_2=db.Property("TestPropertyText2", datatype=db.TEXT)
-TEST_BACKREF_RT=db.RecordType("TestBackRefRecordType")
-TEST_BACKREF_0=(db.Record("TestBackRef0", description="bref0")
-                .add_parent(TEST_BACKREF_RT)
-                .add_property(TEST_RT_1, "TestRecord1")
-                .add_property(TEST_PROP_TEXT_2, "val0"))
-TEST_BACKREF_1=(db.Record("TestBackRef1", description="bref1")
-                .add_parent(TEST_BACKREF_RT)
-                .add_property(TEST_PROP_TEXT_2, "val1"))
-TEST_BACKREF_2=db.Record("TestBackRef2", description="bref2").add_parent(
+              .add_property(TEST_PROP_NAME, "Alias1"))
+
+TEST_PROP_TEXT_2 = db.Property("TestPropertyText2", datatype=db.TEXT)
+TEST_BACKREF_RT = db.RecordType("TestBackRefRecordType")
+TEST_BACKREF_0 = (db.Record("TestBackRef0", description="bref0")
+                  .add_parent(TEST_BACKREF_RT)
+                  .add_property(TEST_RT_1, "TestRecord1")
+                  .add_property(TEST_PROP_TEXT_2, "val0"))
+TEST_BACKREF_1 = (db.Record("TestBackRef1", description="bref1")
+                  .add_parent(TEST_BACKREF_RT)
+                  .add_property(TEST_PROP_TEXT_2, "val1"))
+TEST_BACKREF_2 = db.Record("TestBackRef2", description="bref2").add_parent(
     TEST_BACKREF_RT).add_property(TEST_PROP_TEXT_2, "val2")
-TEST_BACKREF_3=db.Record("TestBackRef3", description="bref3").add_parent(
+TEST_BACKREF_3 = db.Record("TestBackRef3", description="bref3").add_parent(
     TEST_BACKREF_RT).add_property(TEST_PROP_TEXT_2, "val3")
 
 
@@ -88,15 +88,15 @@ def setup_module():
             TEST_REC_1.id) + "@HEAD").insert()
 
     # update test_rec_1 two times
-    TEST_REC_1.description="v2"
-    TEST_REC_1.get_property(TEST_PROP_TEXT).value="val2"
-    TEST_REC_1.get_property(TEST_PROP_DOUBLE).value=2.14
-    TEST_REC_1.get_property(TEST_PROP_INTEGER).value=200
-    TEST_REC_1.get_property(TEST_PROP_DATETIME).value="2022-12-24T20:15:00"
-    TEST_REC_1.get_property(TEST_PROP_DATE).value="2022-12"
-    TEST_REC_1.get_property(TEST_REF_RT).value=TEST_REF_2
-    TEST_REC_1.get_property(TEST_PROP_NAME).value="Alias2"
-    TEST_REC_1.get_property(TEST_PROP_BOOLEAN).value=False
+    TEST_REC_1.description = "v2"
+    TEST_REC_1.get_property(TEST_PROP_TEXT).value = "val2"
+    TEST_REC_1.get_property(TEST_PROP_DOUBLE).value = 2.14
+    TEST_REC_1.get_property(TEST_PROP_INTEGER).value = 200
+    TEST_REC_1.get_property(TEST_PROP_DATETIME).value = "2022-12-24T20:15:00"
+    TEST_REC_1.get_property(TEST_PROP_DATE).value = "2022-12"
+    TEST_REC_1.get_property(TEST_REF_RT).value = TEST_REF_2
+    TEST_REC_1.get_property(TEST_PROP_NAME).value = "Alias2"
+    TEST_REC_1.get_property(TEST_PROP_BOOLEAN).value = False
     TEST_REC_1.update()
 
     CONTAINER.append(TEST_BACKREF_2)
@@ -104,15 +104,15 @@ def setup_module():
         TEST_RT_1, str(
             TEST_REC_1.id) + "@HEAD").insert()
 
-    TEST_REC_1.description="v3"
-    TEST_REC_1.get_property(TEST_PROP_TEXT).value="val3"
-    TEST_REC_1.get_property(TEST_PROP_DOUBLE).value=3.14
-    TEST_REC_1.get_property(TEST_PROP_INTEGER).value=300
-    TEST_REC_1.get_property(TEST_PROP_DATETIME).value="2023-12-24T20:15:00"
-    TEST_REC_1.get_property(TEST_PROP_DATE).value="2023-12"
-    TEST_REC_1.get_property(TEST_REF_RT).value=TEST_REF_3
-    TEST_REC_1.get_property(TEST_PROP_NAME).value="Alias3"
-    TEST_REC_1.get_property(TEST_PROP_BOOLEAN).value=True
+    TEST_REC_1.description = "v3"
+    TEST_REC_1.get_property(TEST_PROP_TEXT).value = "val3"
+    TEST_REC_1.get_property(TEST_PROP_DOUBLE).value = 3.14
+    TEST_REC_1.get_property(TEST_PROP_INTEGER).value = 300
+    TEST_REC_1.get_property(TEST_PROP_DATETIME).value = "2023-12-24T20:15:00"
+    TEST_REC_1.get_property(TEST_PROP_DATE).value = "2023-12"
+    TEST_REC_1.get_property(TEST_REF_RT).value = TEST_REF_3
+    TEST_REC_1.get_property(TEST_PROP_NAME).value = "Alias3"
+    TEST_REC_1.get_property(TEST_PROP_BOOLEAN).value = True
     TEST_REC_1.update()
 
     CONTAINER.append(TEST_BACKREF_3)
@@ -123,108 +123,108 @@ def setup_module():
 
 @ pytest.mark.slow
 def test_normal_find_record():
-    result=query("FIND RECORD TestRecord1")
+    result = query("FIND RECORD TestRecord1")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecordType1")
+    result = query("FIND RECORD TestRecordType1")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyText = val3")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyText = val3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyText = val1")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyText = val1")
     assert len(result) == 0
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDouble = 3.14")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDouble = 3.14")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDouble = 1.14")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDouble = 1.14")
     assert len(result) == 0
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyInteger = 300")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyInteger = 300")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyInteger = 100")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyInteger = 100")
     assert len(result) == 0
 
-    result=query(
+    result = query(
         "FIND RECORD TestRecord1 WITH TestPropertyDatetime = 2023-12-24T20:15:00")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND RECORD TestRecord1 WITH TestPropertyDatetime IN 2023-12")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND RECORD TestRecord1 WITH TestPropertyDatetime = 2021-12-24T20:15:00")
     assert len(result) == 0
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDatetime IN 2021")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDatetime IN 2021")
     assert len(result) == 0
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDate = 2023-12")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDate = 2023-12")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDate = 2021-12")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDate = 2021-12")
     assert len(result) == 0
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDate in 2023")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDate in 2023")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestPropertyDate in 2021")
+    result = query("FIND RECORD TestRecord1 WITH TestPropertyDate in 2021")
     assert len(result) == 0
 
-    result=query("FIND RECORD TestRecord1 WITH TestRefRecordType = TestRef3")
+    result = query("FIND RECORD TestRecord1 WITH TestRefRecordType = TestRef3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRecord1 WITH TestRefRecordType = TestRef1")
+    result = query("FIND RECORD TestRecord1 WITH TestRefRecordType = TestRef1")
     assert len(result) == 0
 
-    result=query(
+    result = query(
         "FIND RECORD TestRecord1 WITH TestRefRecordType -> TestRef3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND RECORD TestRecord1 WITH TestRefRecordType -> TestRef1")
     assert len(result) == 0
 
-    result=query("FIND RECORD WITH TestRefRecordType AND TestPropertyText")
+    result = query("FIND RECORD WITH TestRefRecordType AND TestPropertyText")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD TestRefRecordType WITH NOT TestPropertyText")
+    result = query("FIND RECORD TestRefRecordType WITH NOT TestPropertyText")
     assert len(result) == 3
     assert set(["ref1", "ref2", "ref3"]) == set(
         [r.description for r in result])
 
-    result=query("FIND RECORD TestRecord1 WITH NOT TestPropertyText")
+    result = query("FIND RECORD TestRecord1 WITH NOT TestPropertyText")
     assert len(result) == 0
 
-    result=query("FIND RECORD WITH NOT TestPropertyText")
+    result = query("FIND RECORD WITH NOT TestPropertyText")
     assert len(result) == 7
     assert set(["ref1", "ref2", "ref3", "bref0", "bref1", "bref2",
                 "bref3", ]) == set([r.description for r in result])
 
-    result=query("FIND RECORD WHICH IS REFERENCED BY TestBackRefRecordType")
+    result = query("FIND RECORD WHICH IS REFERENCED BY TestBackRefRecordType")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND RECORD WHICH IS REFERENCED BY TestBackRef0")
+    result = query("FIND RECORD WHICH IS REFERENCED BY TestBackRef0")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND RECORD WHICH IS REFERENCED BY TestBackRefRecordType WITH TestPropertyText2=val0")
     assert len(result) == 1
     assert result[0].description == "v3"
@@ -235,12 +235,12 @@ def test_normal_find_record():
             "return false positives."))
 def test_normal_find_with_versioned_reference():
     # current version is not referenced
-    result=query("FIND RECORD WHICH IS REFERENCED BY TestBackRef1")
+    result = query("FIND RECORD WHICH IS REFERENCED BY TestBackRef1")
     assert len(result) == 0
 
 
 def test_find_any_version_of_record():
-    result=query("FIND ANY VERSION OF RECORD")
+    result = query("FIND ANY VERSION OF RECORD")
     assert len(result) == 10
     assert set(["v3", "v2", "v1", "ref1", "ref2", "ref3", "bref0", "bref1",
                 "bref2", "bref3"]
@@ -248,385 +248,385 @@ def test_find_any_version_of_record():
 
 
 def test_find_any_version_of_entity_by_name():
-    result=query("FIND ANY VERSION OF ENTITY TestRecord1")
+    result = query("FIND ANY VERSION OF ENTITY TestRecord1")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_record_by_name():
-    result=query("FIND ANY VERSION OF RECORD TestRecord1")
+    result = query("FIND ANY VERSION OF RECORD TestRecord1")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_record_by_parent():
-    result=query("FIND ANY VERSION OF RECORD TestRecordType1")
+    result = query("FIND ANY VERSION OF RECORD TestRecordType1")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_named_entity_with_id_filter():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WITH id = " + str(TEST_REC_1.id))
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_entity_with_id_filter():
-    result=query("FIND ANY VERSION OF ENTITY WITH id = " +
+    result = query("FIND ANY VERSION OF ENTITY WITH id = " +
                    str(TEST_REC_1.id))
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_record_with_id_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH id = " +
+    result = query("FIND ANY VERSION OF RECORD WITH id = " +
                    str(TEST_REC_1.id))
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_record_with_simple_pov_text_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyText")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyText")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyText = val3")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyText = val3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyText = val2")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyText = val2")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyText").value == "val2"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyText = val1")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyText = val1")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_pov_name_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyName")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyName")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyName = Alias3")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyName = Alias3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyName = Alias2")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyName = Alias2")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyName").value == "Alias2"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyName = Alias1")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyName = Alias1")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_pov_boolean_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyBoolean")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyBoolean")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyBoolean = TRUE AND TestPropertyText = val3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyBoolean = FALSE")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyBoolean").value is False
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyBoolean = TRUE AND TestPropertyText = val1")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_pov_double_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble = 3.14")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble = 3.14")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble = 2.14")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble = 2.14")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyDouble").value == 2.14
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble = 1.14")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDouble = 1.14")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_pov_integer_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger = 300")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger = 300")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger = 200")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger = 200")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyInteger").value == 200
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger = 100")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyInteger = 100")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_pov_datetime_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDatetime")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDatetime")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDatetime = 2023-12-24T20:15:00")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDatetime = 2022-12-24T20:15:00")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property(
         "TestPropertyDatetime").value.startswith("2022")
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDatetime = 2021-12-24T20:15:00")
     assert len(result) == 1
     assert result[0].description == "v1"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDatetime IN 2023")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDatetime IN 2022")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property(
         "TestPropertyDatetime").value.startswith("2022")
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDatetime IN 2021")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_pov_date_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDate")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDate")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDate = 2023-12")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDate = 2022-12")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyDate").value.startswith("2022")
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestPropertyDate = 2021-12")
     assert len(result) == 1
     assert result[0].description == "v1"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDate IN 2023")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDate IN 2023")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDate IN 2022")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDate IN 2022")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestPropertyDate").value.startswith("2022")
 
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyDate IN 2021")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyDate IN 2021")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_simple_reference_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestRefRecordType")
+    result = query("FIND ANY VERSION OF RECORD WITH TestRefRecordType")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef2")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestRefRecordType").value == TEST_REF_2.id
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef1")
     assert len(result) == 1
     assert result[0].description == "v1"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType -> TestRef3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType -> TestRef2")
     assert len(result) == 1
     assert result[0].description == "v2"
     assert result[0].get_property("TestRefRecordType").value == TEST_REF_2.id
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType -> TestRef1")
     assert len(result) == 1
     assert result[0].description == "v1"
 
 
 def test_find_any_version_of_record_with_conjunction_filter():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType AND TestPropertyText")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef3 AND TestPropertyText")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef3 AND TestPropertyText = val3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef2 AND TestPropertyText = val2")
     assert len(result) == 1
     assert result[0].description == "v2"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef3 AND TestPropertyText = val2")
     assert len(result) == 0
 
 
 def test_find_any_version_of_record_with_disjunction_filter():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType OR TestPropertyText")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef3 OR TestPropertyText")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef2 OR TestPropertyText")
     assert len(result) == 3
     assert set(["v3", "v2", "v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef3 OR TestPropertyText = val3")
     assert len(result) == 1
     assert result[0].description == "v3"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef2 OR TestPropertyText = val2")
     assert len(result) == 1
     assert result[0].description == "v2"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1  WITH TestRefRecordType = TestRef2 OR TestPropertyText = val2")
     assert len(result) == 1
     assert result[0].description == "v2"
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef2 OR TestPropertyText = val3")
     assert len(result) == 2
     assert set(["v3", "v2"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH TestRefRecordType = TestRef2 OR TestPropertyText = val3 OR TestPropertyInteger = 200")
     assert len(result) == 2
     assert set(["v3", "v2"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_record_with_negation_filter():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WHICH DOES NOT HAVE A TestPropertyText")
     assert len(result) == 7
     assert set(["ref1", "ref2", "ref3", "bref0", "bref1", "bref2",
                 "bref3", ]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WHICH DOES NOT HAVE A TestPropertyText=val2")
     assert len(result) == 9
     assert set(["ref1", "ref2", "ref3", "bref0", "bref1", "bref2", "bref3",
                 "v1", "v3"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD TestRecord1 WHICH DOES NOT HAVE A TestPropertyText=val2")
     assert len(result) == 2
     assert set(["v1", "v3"]) == {r.description for r in result}
 
 
 def test_find_any_version_of_record_with_complex_filter():
-    result=query("FIND ANY VERSION OF RECORD WITH TestPropertyText=val2 OR (TestPropertyInteger=200 AND NOT TestPropertyInteger=400 AND TestRefRecordType = TestRef2)")
+    result = query("FIND ANY VERSION OF RECORD WITH TestPropertyText=val2 OR (TestPropertyInteger=200 AND NOT TestPropertyInteger=400 AND TestRefRecordType = TestRef2)")
     assert len(result) == 1
     assert result[0].description == "v2"
 
 
 def test_find_any_version_of_record_with_backref_filter():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WHICH IS REFERENCED BY TestBackRefRecordType")
     assert len(result) == 3
     assert set(["v1", "v2", "v3"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD TestRecord1 WHICH IS REFERENCED BY TestBackRefRecordType")
     assert len(result) == 3
     assert set(["v1", "v2", "v3"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WHICH IS REFERENCED BY TestBackRefRecordType")
     assert len(result) == 3
     assert set(["v1", "v2", "v3"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WHICH IS REFERENCED BY TestBackRef0")
     assert len(result) == 3
     assert set(["v1", "v2", "v3"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WHICH IS REFERENCED BY TestBackRef0")
     assert len(result) == 3
     assert set(["v1", "v2", "v3"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WHICH IS REFERENCED BY TestBackRef1")
     assert len(result) == 1
     assert set(["v1"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WHICH IS REFERENCED BY TestBackRef2")
     assert len(result) == 1
     assert set(["v2"]) == {r.description for r in result}
 
-    result=query(
+    result = query(
         "FIND ANY VERSION OF TestRecord1 WHICH IS REFERENCED BY TestBackRef3")
     assert len(result) == 1
     assert set(["v3"]) == {r.description for r in result}
@@ -635,7 +635,7 @@ def test_find_any_version_of_record_with_backref_filter():
 @ pytest.mark.xfail(
     reason="versioned queries with subqueries are not supported yet")
 def test_find_any_version_of_record_with_backref_and_subquery():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WHICH IS REFERENCED BY TestBackRefRecordType WITH name = TestBackRef0")
     assert len(result) == 1
     assert set(["v3"]) == {r.description for r in result}
@@ -644,7 +644,7 @@ def test_find_any_version_of_record_with_backref_and_subquery():
 @ pytest.mark.xfail(
     reason="versioned queries with subqueries are not supported yet")
 def test_find_any_version_of_record_with_ref_and_subquery():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WHICH REFERENCES TestRefRecordType WITH name = TestRef2")
     assert len(result) == 1
     assert set(["v3"]) == {r.description for r in result}
@@ -653,7 +653,7 @@ def test_find_any_version_of_record_with_ref_and_subquery():
 @ pytest.mark.xfail(
     reason="versioned queries with aggregate functions are not supported yet")
 def test_find_any_version_of_record_with_greatest_filter():
-    result=query(
+    result = query(
         "FIND ANY VERSION OF RECORD WITH THE GREATEST TestPropertyInteger")
     assert len(result) == 1
     assert set(["v3"]) == {r.description for r in result}