diff --git a/backend/metagenedb/api/catalog/views/bulk_viewset.py b/backend/metagenedb/api/catalog/views/bulk_viewset.py
index 26412907ad1d6cf7f8b6efcfdde1b0e201153e76..1ed61653d194bb86cf8346e78e50acf5b010bb86 100644
--- a/backend/metagenedb/api/catalog/views/bulk_viewset.py
+++ b/backend/metagenedb/api/catalog/views/bulk_viewset.py
@@ -8,7 +8,6 @@ class BulkViewSet(ModelViewSet):
     def get_objects(self, instance_ids):
         return self.queryset.in_bulk(instance_ids, field_name=self.lookup_field)
 
-
     def _created_payload(self, serializer, request):
         if isinstance(request.data, list):
             return {
@@ -38,12 +37,10 @@ class BulkViewSet(ModelViewSet):
             # perform the classic update
             return super().update(request, *args, **kwargs)
         instance_ids = set([element[self.lookup_field] for element in request.data])
-        instances_set = self.get_objects(instance_ids)
-        instances = [instance for instance in instances_set.values()]
-        serializer = self.get_serializer(instances, data=request.data, many=True)
+        instances = self.get_objects(instance_ids)
+        serializer = self.get_serializer(instances.values(), data=request.data, many=True)
         serializer.is_valid(raise_exception=True)
 
-
         # instance = self.get_object()
         # serializer = self.get_serializer(instance, data=request.data, partial=partial)
         # serializer.is_valid(raise_exception=True)
diff --git a/backend/metagenedb/apps/catalog/serializers/gene.py b/backend/metagenedb/apps/catalog/serializers/gene.py
index 9c4f72ba377220753c1bc4fec11e2d2dee84bd83..1c684a3e51c1401e0847fa2d4ad62c4081006e82 100644
--- a/backend/metagenedb/apps/catalog/serializers/gene.py
+++ b/backend/metagenedb/apps/catalog/serializers/gene.py
@@ -6,7 +6,6 @@ from rest_framework.utils import model_meta
 from metagenedb.apps.catalog.models import Function, Gene, Taxonomy
 from metagenedb.apps.catalog.serializers import FunctionSerializer
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/backend/metagenedb/common/utils/parsers/igc.py b/backend/metagenedb/common/utils/parsers/igc.py
index 296ed9b2803da02b298233a8b0c1e1e90a9d56d5..5790c5d38ffa188d74ed57ccf12f9736c6b7496b 100644
--- a/backend/metagenedb/common/utils/parsers/igc.py
+++ b/backend/metagenedb/common/utils/parsers/igc.py
@@ -1,6 +1,5 @@
 import logging
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/backend/metagenedb/common/utils/parsers/kegg.py b/backend/metagenedb/common/utils/parsers/kegg.py
index 2ed3f8719829505668cba31a409c06e8ecf7dea7..68701c477ca8d11b9e0708cbed2f4308b613c403 100644
--- a/backend/metagenedb/common/utils/parsers/kegg.py
+++ b/backend/metagenedb/common/utils/parsers/kegg.py
@@ -1,6 +1,5 @@
 import logging
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/backend/metagenedb/common/utils/parsers/ncbi_taxonomy.py b/backend/metagenedb/common/utils/parsers/ncbi_taxonomy.py
index d67d3d1b670e7cd6199cda735d1e35e15d94dd17..e3b298e85f736c94e814a9afdfdf5e0cf1399ad4 100644
--- a/backend/metagenedb/common/utils/parsers/ncbi_taxonomy.py
+++ b/backend/metagenedb/common/utils/parsers/ncbi_taxonomy.py
@@ -1,6 +1,5 @@
 import logging
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/backend/scripts/populate_db/import_igc_data.py b/backend/scripts/populate_db/import_igc_data.py
index 4d629c79ff9db37ba86c23cda6effe8b54132e1f..59337649cfbe518a87b45b3481dffaa35baa260c 100755
--- a/backend/scripts/populate_db/import_igc_data.py
+++ b/backend/scripts/populate_db/import_igc_data.py
@@ -10,7 +10,6 @@ from slugify import slugify
 
 from metagenedb.common.utils.parsers import IGCLineParser
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/backend/scripts/populate_db/import_ncbi_taxonomy.py b/backend/scripts/populate_db/import_ncbi_taxonomy.py
index 510cd327f83254987114fa0be62f8f6c6dd7e7af..339bdcb9bc6b114f3ac2a54dda78bf2dbfbd7699 100755
--- a/backend/scripts/populate_db/import_ncbi_taxonomy.py
+++ b/backend/scripts/populate_db/import_ncbi_taxonomy.py
@@ -15,7 +15,6 @@ django.setup()
 from metagenedb.apps.catalog.models import Taxonomy  # noqa
 from metagenedb.apps.catalog.serializers import TaxonomySerializer  # noqa
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 SELECT_RELATED_PARENT = "parent{}".format("__parent" * 40)
diff --git a/backend/scripts/populate_db/load_kegg_ko.py b/backend/scripts/populate_db/load_kegg_ko.py
index 55d0960aafc6d326a616c879c0d7b8b0bc4e94a1..ada7880148b75be4ed935890c7db92d077f0e900 100755
--- a/backend/scripts/populate_db/load_kegg_ko.py
+++ b/backend/scripts/populate_db/load_kegg_ko.py
@@ -18,7 +18,6 @@ django.setup()
 
 from metagenedb.apps.catalog.models import KeggOrthology  # noqa
 
-logging.basicConfig(level=logging.INFO)
 _LOGGER = logging.getLogger(__name__)
 
 KEGG_KO_LIST_API = "http://rest.kegg.jp/list/ko"