Codacy code quality improvements

app/server/api.py

@@ -209,7 +209,6 @@ class TextDownloadAPI(APIView):
         project = get_object_or_404(Project, pk=self.kwargs['project_id'])
         documents = project.documents.all()
         painter = self.select_painter(format)
-        
         # json1 format prints text labels while json format prints annotations with label ids
         # json1 format - "labels": [[0, 15, "PERSON"], ..]
         # json format - "annotations": [{"label": 5, "start_offset": 0, "end_offset": 2, "user": 1},..]

app/server/tests/test_api.py

@@ -907,7 +907,7 @@ class TestDownloader(APITestCase):
     def test_can_download_labelling_json1(self):
         self.download_test_helper(url=self.labeling_url,
                                   format='json1',
-                                  expected_status=status.HTTP_200_OK)    
+                                  expected_status=status.HTTP_200_OK)
 
     def test_can_download_plain_text(self):
         self.download_test_helper(url=self.classification_url,

app/server/utils.py

@@ -392,6 +392,7 @@ class JSONPainter(object):
             data.append(d)
         return data
 
+    @staticmethod
     def paint_labels(self, documents, labels):
         serializer_labels = LabelSerializer(labels, many=True)
         serializer = DocumentSerializer(documents, many=True)
@@ -410,7 +411,6 @@ class JSONPainter(object):
             data.append(d)
         return data
 
-
 class CSVPainter(JSONPainter):
 
     def paint(self, documents):