diff --git a/qgis-app/layerdefinitions/file_handler.py b/qgis-app/layerdefinitions/file_handler.py
index f6606948..53529325 100644
--- a/qgis-app/layerdefinitions/file_handler.py
+++ b/qgis-app/layerdefinitions/file_handler.py
@@ -42,6 +42,7 @@ def get_url_datasource(xmlfile):
     result = url[0] if url else None
     return result
 
+
 def get_provider(xmlfile):
     tree = parse_qlr(xmlfile)
     root = tree.getroot()
diff --git a/qgis-app/layerdefinitions/models.py b/qgis-app/layerdefinitions/models.py
index 131450ee..015674d6 100644
--- a/qgis-app/layerdefinitions/models.py
+++ b/qgis-app/layerdefinitions/models.py
@@ -18,7 +18,8 @@ class LayerDefinition(Resource):
     # file
     file = models.FileField(
         _('Layer Definition file'),
-        help_text=_('A Layer Definition file. The filesize must less than 1MB'),
+        help_text=_('A Layer Definition file. '
+                    'The filesize must less than 1MB'),
         upload_to=LAYERDEFINITIONS_STORAGE_PATH,
         validators=[FileExtensionValidator(allowed_extensions=['qlr'])],
         null=False)
diff --git a/qgis-app/layerdefinitions/tests/test_file_handler.py b/qgis-app/layerdefinitions/tests/test_file_handler.py
index e4143344..b51834ff 100644
--- a/qgis-app/layerdefinitions/tests/test_file_handler.py
+++ b/qgis-app/layerdefinitions/tests/test_file_handler.py
@@ -19,6 +19,7 @@ def setUp(self):
         self.qlr_file = os.path.join(
             TESTFILE_DIR, "my-vapour-pressure.qlr")
 
+
 class TestParseQlr(SetUpTest, TestCase):
     """Test the parse_qlr function."""
 
diff --git a/qgis-app/layerdefinitions/urls.py b/qgis-app/layerdefinitions/urls.py
index b8f59ff6..7204ee15 100644
--- a/qgis-app/layerdefinitions/urls.py
+++ b/qgis-app/layerdefinitions/urls.py
@@ -15,7 +15,8 @@
 urlpatterns = [
     #  GeoPackage
     path('', LayerDefinitionListView.as_view(), name='layerdefinition_list'),
-    path('add/', LayerDefinitionCreateView.as_view(), name='layerdefinition_create'),
+    path('add/', LayerDefinitionCreateView.as_view(),
+         name='layerdefinition_create'),
     path('<int:pk>/', LayerDefinitionDetailView.as_view(),
          name='layerdefinition_detail'),
     path('<int:pk>/update/', LayerDefinitionUpdateView.as_view(),
@@ -33,5 +34,6 @@
          name='layerdefinition_require_action'),
 
     # JSON
-    path('sidebarnav/', layerdefinition_nav_content, name="layerdefinition_nav_content"),
+    path('sidebarnav/', layerdefinition_nav_content,
+         name="layerdefinition_nav_content"),
 ]