diff --git a/caluma/caluma_analytics/management/commands/run_analytics.py b/caluma/caluma_analytics/management/commands/run_analytics.py
index 4e1df31ba..9f87297fc 100644
--- a/caluma/caluma_analytics/management/commands/run_analytics.py
+++ b/caluma/caluma_analytics/management/commands/run_analytics.py
@@ -106,7 +106,11 @@ def _rowkey(val):
             ]
         )
         print(format_string.format(**col_labels))
-        print(format_string.format(**{k: "-" * l for k, l in col_lengths.items()}))
+        print(
+            format_string.format(
+                **{col: "-" * length for col, length in col_lengths.items()}
+            )
+        )
 
         for rec in records:
             fdata = {_rowkey(k): str(v) for k, v in rec.items()}
diff --git a/caluma/caluma_core/tests/test_mutation_params.py b/caluma/caluma_core/tests/test_mutation_params.py
index 76dfea329..75af2b312 100644
--- a/caluma/caluma_core/tests/test_mutation_params.py
+++ b/caluma/caluma_core/tests/test_mutation_params.py
@@ -79,7 +79,7 @@ def check_perm(self, mutation, info):
         assert len(params) == 1
         assert len(params["input"]) == 3
         assert params["input"]["slug"] == "email_addr"
-        assert type(params["input"]["format_validators"]) is list
+        assert isinstance(params["input"]["format_validators"], list)
         return True
 
     mocker.patch(f"{__name__}._TestPermission.permission_impl", check_perm)
diff --git a/caluma/settings/caluma.py b/caluma/settings/caluma.py
index 564c427b2..af858bb91 100644
--- a/caluma/settings/caluma.py
+++ b/caluma/settings/caluma.py
@@ -1,7 +1,8 @@
 """
-This settings module only contains caluma specific settings.
+Caluma specific settings.
 
-It's imported by the main caluma settings and is intended to also be used by third party
+This settings module only contains caluma-internal settings. It's imported
+by the main caluma settings and is intended to also be used by third party
 applications integrating Caluma.
 """