diff --git a/chord_metadata_service/chord/ingest/exceptions.py b/chord_metadata_service/chord/ingest/exceptions.py
index 431e41242..954118629 100644
--- a/chord_metadata_service/chord/ingest/exceptions.py
+++ b/chord_metadata_service/chord/ingest/exceptions.py
@@ -94,7 +94,7 @@ def parse_schema_warnings(data: dict, schema: dict) -> Optional[List[dict]]:
     warnings = []
     for (version, version_changes) in applicable_changes.items():
         for (prop_name, changes) in version_changes.get("properties", {}).items():
-            if property_warning:= parse_property_warnings(data, prop_name, changes):
+            if property_warning := parse_property_warnings(data, prop_name, changes):
                 property_warning["version"] = version
                 warnings.append(property_warning)
     return warnings if len(warnings) else None
diff --git a/chord_metadata_service/chord/ingest/experiments.py b/chord_metadata_service/chord/ingest/experiments.py
index 03a7aaf3c..df9713547 100644
--- a/chord_metadata_service/chord/ingest/experiments.py
+++ b/chord_metadata_service/chord/ingest/experiments.py
@@ -56,7 +56,7 @@ def create_experiment_result(er: dict) -> em.ExperimentResult:
 
 def validate_experiment(experiment_data, idx: Optional[int] = None) -> None:
     # Validate experiment data against experiments schema.
-    if val_errors:= schema_validation(experiment_data, EXPERIMENT_SCHEMA):
+    if val_errors := schema_validation(experiment_data, EXPERIMENT_SCHEMA):
         raise IngestError(
             data=experiment_data,
             schema=EXPERIMENT_SCHEMA,
diff --git a/chord_metadata_service/chord/ingest/phenopackets.py b/chord_metadata_service/chord/ingest/phenopackets.py
index 14b87f65c..133b71bf0 100644
--- a/chord_metadata_service/chord/ingest/phenopackets.py
+++ b/chord_metadata_service/chord/ingest/phenopackets.py
@@ -60,7 +60,7 @@ def validate_phenopacket(phenopacket_data: dict[str, Any],
                          schema: dict = PHENOPACKET_SCHEMA,
                          idx: Optional[int] = None) -> None:
     # Validate phenopacket data against phenopackets schema.
-    if val_errors:= schema_validation(phenopacket_data, schema):
+    if val_errors := schema_validation(phenopacket_data, schema):
         raise IngestError(
             data=phenopacket_data,
             schema=PHENOPACKET_SCHEMA,
diff --git a/chord_metadata_service/chord/tests/test_api_ingest.py b/chord_metadata_service/chord/tests/test_api_ingest.py
index 15cbb2f10..ced50a5c0 100644
--- a/chord_metadata_service/chord/tests/test_api_ingest.py
+++ b/chord_metadata_service/chord/tests/test_api_ingest.py
@@ -3,9 +3,8 @@
 from django.urls import reverse
 from rest_framework import status
 from rest_framework.test import APITestCase
-from chord_metadata_service.chord.tests.example_ingest import EXAMPLE_INGEST_EXPERIMENT, EXAMPLE_INGEST_INVALID_EXPERIMENT, EXAMPLE_INGEST_INVALID_PHENOPACKET, EXAMPLE_INGEST_PHENOPACKET
-
-from chord_metadata_service.restapi.tests.utils import load_local_json
+from chord_metadata_service.chord.tests.example_ingest import EXAMPLE_INGEST_EXPERIMENT, \
+    EXAMPLE_INGEST_INVALID_EXPERIMENT, EXAMPLE_INGEST_INVALID_PHENOPACKET, EXAMPLE_INGEST_PHENOPACKET
 from .constants import VALID_PROJECT_1, valid_dataset_1
 from ..workflows.metadata import METADATA_WORKFLOWS
 
@@ -88,7 +87,7 @@ def test_phenopackets_ingest(self):
         c = r.json()
         self.assertEqual(r.status_code, status.HTTP_500_INTERNAL_SERVER_ERROR)
         self.assertEqual(c["success"], False)
-        self.assertEqual(len(c["errors"]), 1) # 1 required property
+        self.assertEqual(len(c["errors"]), 1)  # 1 required property
 
         # Invalid phenopacket JSON validation
         r = self.client.post(
@@ -113,7 +112,6 @@ def test_phenopackets_ingest(self):
         self.assertEqual(len(c["warnings"]), 0)
         self.assertEqual(r.status_code, status.HTTP_201_CREATED)
 
-
     def test_experiments_ingest_failures(self):
         # Invalid workflow ID
         r = self.client.post(
@@ -133,7 +131,7 @@ def test_experiments_ingest_failures(self):
         c = r.json()
         self.assertEqual(r.status_code, status.HTTP_400_BAD_REQUEST)
         self.assertEqual(c["success"], False)
-        self.assertEqual(len(c["errors"]), 2) # 2 required properties
+        self.assertEqual(len(c["errors"]), 2)  # 2 required properties
 
         # Bad ingestion body JSON
         r = self.client.post(
@@ -156,7 +154,7 @@ def test_experiments_ingest_failures(self):
         self.assertEqual(r.status_code, status.HTTP_400_BAD_REQUEST)
         self.assertEqual(c["success"], False)
         self.assertEqual(len(c["errors"]), 4)
-        
+
         # Two of the errors concern experiment schema changes
         warnings = c["warnings"]
         self.assertEqual(len(warnings), 2)
@@ -174,7 +172,7 @@ def test_experiments_ingest_failures(self):
         self.assertEqual(c["success"], False)
         self.assertEqual(len(c["errors"]), 1)
         self.assertEqual(r.status_code, status.HTTP_500_INTERNAL_SERVER_ERROR)
-    
+
     def test_experiment_ingest_success(self):
         # Create the required phenopacket with a biosample first
         r = self.client.post(