[#1] Code format

backend/akvo/core_data/models.py

@@ -48,7 +48,11 @@ def define_answer_value(self, data, answer):
 
 
 class Data(models.Model):
-    form = models.ForeignKey(to=Forms, on_delete=models.CASCADE, related_name="data")
+    form = models.ForeignKey(
+        to=Forms,
+        on_delete=models.CASCADE,
+        related_name="data"
+    )
     name = models.TextField()
     geo = models.JSONField(null=True, default=None)
     submitter = models.CharField()
@@ -64,10 +68,14 @@ class Meta:
 
 class Answers(models.Model):
     data = models.ForeignKey(
-        to=Data, on_delete=models.CASCADE, related_name="data_answers"
+        to=Data,
+        on_delete=models.CASCADE,
+        related_name="data_answers"
     )
     question = models.ForeignKey(
-        to=Questions, on_delete=models.CASCADE, related_name="question_answers"
+        to=Questions,
+        on_delete=models.CASCADE,
+        related_name="question_answers"
     )
     name = models.TextField(null=True, default=None)
     value = models.FloatField(null=True, default=None)

backend/akvo/core_data/serializers/answer.py

@@ -29,7 +29,9 @@ def validate(self, attrs):
         question_id = attrs.get("question").id
 
         def raise_validation_error(message):
-            raise serializers.ValidationError(f"{message} for Question:{question_id}")
+            raise serializers.ValidationError(
+                f"{message} for Question:{question_id}"
+            )
 
         if value == "" or (isinstance(value, list) and len(value) == 0):
             raise_validation_error("Value is required")

backend/akvo/core_forms/tests/test_form_serializers.py

@@ -21,7 +21,10 @@ def test_list_form_serializer_contains_expected_fields(self):
         data = self.serializer.data
         self.assertEqual(
             set(data.keys()),
-            {"id", "name", "description", "version", "languages", "translations"},
+            {
+                "id", "name", "description",
+                "version", "languages", "translations"
+            },
         )
 
     def test_list_form_serializer_return_expected_data(self):