diff --git a/src/iosanita/contenttypes/content/cartella_modulistica.py b/src/iosanita/contenttypes/content/cartella_modulistica.py
index 08b1c31..0edd388 100644
--- a/src/iosanita/contenttypes/content/cartella_modulistica.py
+++ b/src/iosanita/contenttypes/content/cartella_modulistica.py
@@ -1,7 +1,5 @@
 # -*- coding: utf-8 -*-
-from iosanita.contenttypes.interfaces.cartella_modulistica import (
-    ICartellaModulistica,
-)
+from iosanita.contenttypes.interfaces.cartella_modulistica import ICartellaModulistica
 from plone.dexterity.content import Container
 from zope.interface import implementer
 
diff --git a/src/iosanita/contenttypes/restapi/services/back_references/extractor.py b/src/iosanita/contenttypes/restapi/services/back_references/extractor.py
index 48895a1..f96c96f 100644
--- a/src/iosanita/contenttypes/restapi/services/back_references/extractor.py
+++ b/src/iosanita/contenttypes/restapi/services/back_references/extractor.py
@@ -23,7 +23,6 @@
 @implementer(IoSanitaBackReferenceExtractor)
 @adapter(Interface, Interface)
 class BackReferencesExtractor(object):
-
     reference_id = None
 
     def __init__(self, context, request):
@@ -78,7 +77,6 @@ def get_back_references(self, reference_id):
 @implementer(IoSanitaBackReferenceExtractor)
 @adapter(IServizio, Interface)
 class BackReferencesExtractorServizio(BackReferencesExtractor):
-
     reference_id = "servizio_correlato"
 
     def __call__(self):
diff --git a/src/iosanita/contenttypes/restapi/services/modulistica_items/get.py b/src/iosanita/contenttypes/restapi/services/modulistica_items/get.py
index a7e968d..df9c1c6 100644
--- a/src/iosanita/contenttypes/restapi/services/modulistica_items/get.py
+++ b/src/iosanita/contenttypes/restapi/services/modulistica_items/get.py
@@ -1,7 +1,5 @@
 # -*- coding: utf-8 -*-
-from iosanita.contenttypes.interfaces.cartella_modulistica import (
-    ICartellaModulistica,
-)
+from iosanita.contenttypes.interfaces.cartella_modulistica import ICartellaModulistica
 from plone.dexterity.utils import iterSchemata
 from plone.restapi.interfaces import IExpandableElement
 from plone.restapi.interfaces import IFieldSerializer
diff --git a/src/iosanita/contenttypes/tests/test_ct_cartella_modulistica.py b/src/iosanita/contenttypes/tests/test_ct_cartella_modulistica.py
index 56661b9..3689e37 100644
--- a/src/iosanita/contenttypes/tests/test_ct_cartella_modulistica.py
+++ b/src/iosanita/contenttypes/tests/test_ct_cartella_modulistica.py
@@ -8,11 +8,12 @@
 from plone.app.testing import SITE_OWNER_PASSWORD
 from plone.app.testing import TEST_USER_ID
 from plone.restapi.testing import RelativeSession
-
-# from Products.CMFPlone.interfaces import ISelectableConstrainTypes
+from transaction import commit
 
 import unittest
-from transaction import commit
+
+
+# from Products.CMFPlone.interfaces import ISelectableConstrainTypes
 
 
 class TestCartellaModulisticaSchema(unittest.TestCase):