diff --git a/beat/web/libraries/serializers.py b/beat/web/libraries/serializers.py
index 3e2feb817950666e4c1116c984e60d39bd224243..95cbbcb28602d1b797243420964babcd2529f558 100644
--- a/beat/web/libraries/serializers.py
+++ b/beat/web/libraries/serializers.py
@@ -35,7 +35,7 @@ from ..algorithms.models import Algorithm
 import beat.core.library
 
 
-#----------------------------------------------------------
+# ----------------------------------------------------------
 
 
 class LibraryCreationSerializer(CodeCreationSerializer):
@@ -44,7 +44,7 @@ class LibraryCreationSerializer(CodeCreationSerializer):
         beat_core_class = beat.core.library
 
 
-#----------------------------------------------------------
+# ----------------------------------------------------------
 
 
 class ReferenceSerializer(serializers.ModelSerializer):
@@ -53,49 +53,50 @@ class ReferenceSerializer(serializers.ModelSerializer):
     is_owner = serializers.SerializerMethodField()
 
     class Meta:
-        fields = ['name', 'short_description', 'accessibility', 'is_owner']
+        fields = ["name", "short_description", "accessibility", "is_owner"]
 
     def get_accessibility(self, obj):
         return obj.get_sharing_display().lower()
 
     def get_is_owner(self, obj):
-        return (obj.author == self.context.get('user'))
+        return obj.author == self.context.get("user")
 
 
-#----------------------------------------------------------
+# ----------------------------------------------------------
 
 
 class LibraryReferenceSerializer(ReferenceSerializer):
-
     class Meta(ReferenceSerializer.Meta):
         model = Library
 
 
-#----------------------------------------------------------
+# ----------------------------------------------------------
 
 
 class AlgorithmReferenceSerializer(ReferenceSerializer):
-
     class Meta(ReferenceSerializer.Meta):
         model = Algorithm
 
 
-#----------------------------------------------------------
+# ----------------------------------------------------------
 
 
 class LibrarySerializer(CodeSerializer):
     referenced_libraries = LibraryReferenceSerializer(many=True)
-    referencing_libraries = LibraryReferenceSerializer(many=True, source='referencing')
-    referencing_algorithms = AlgorithmReferenceSerializer(many=True, source='used_by_algorithms')
+    referencing_libraries = LibraryReferenceSerializer(many=True, source="referencing")
+    referencing_algorithms = AlgorithmReferenceSerializer(
+        many=True, source="used_by_algorithms"
+    )
 
     class Meta(CodeSerializer.Meta):
         model = Library
 
 
-#----------------------------------------------------------
+# ----------------------------------------------------------
 
 
 class FullLibrarySerializer(LibrarySerializer):
-
     class Meta(LibrarySerializer.Meta):
-        default_fields = LibrarySerializer.Meta.default_fields + LibrarySerializer.Meta.extra_fields
+        default_fields = (
+            LibrarySerializer.Meta.default_fields + LibrarySerializer.Meta.extra_fields
+        )