diff --git a/.gitignore b/.gitignore
index 83758143b..70d81b559 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,5 +54,5 @@ _build
 
 db.sqlite3
 venv/
-
-/tests/app/idp/static
+
+/tests/app/idp/static
diff --git a/tests/app/idp/idp/settings.py b/tests/app/idp/idp/settings.py
index 67a1109e0..19d6af543 100644
--- a/tests/app/idp/idp/settings.py
+++ b/tests/app/idp/idp/settings.py
@@ -10,10 +10,10 @@
 https://docs.djangoproject.com/en/4.2/ref/settings/
 """
 
-import environ
 import os
 from pathlib import Path
 
+import environ
 
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
@@ -26,7 +26,9 @@
     SECRET_KEY=(str, "django-insecure-vri27@j_q62e2it4$xiy9ca!7@qgjkhhan(*zs&lz0k@yukbb3"),
     OAUTH2_PROVIDER_OIDC_ENABLED=(bool, True),
     OAUTH2_PROVIDER_OIDC_RP_INITIATED_LOGOUT_ENABLED=(bool, True),
-    OAUTH2_PROVIDER_OIDC_RSA_PRIVATE_KEY=(str, """
+    OAUTH2_PROVIDER_OIDC_RSA_PRIVATE_KEY=(
+        str,
+        """
 -----BEGIN RSA PRIVATE KEY-----
 MIIJKAIBAAKCAgEAtd8X/v8pddKt+opMJZrhV4FH86gBTMPjTGXeAfKkQVf7KDUZ
 Ty90n+JMe2rvCUn+Nws9yy5vmtbkomQbj8Xs1kHJOVdCnH1L2HTkvM7BjTBmJ5vc
@@ -78,26 +80,26 @@
 dBCCnF8FP1yPW8UgGVGSeozmIMaJwSpl2srZUMkN1KlqHwzehrOn9Tn2grA9ue/i
 ipUMvb4Se0LDJnmFuv8v6gM6V4vyXkP855mNOiRHUOHOSKdQ3SeKrLlnR6I=
 -----END RSA PRIVATE KEY-----
-"""),
-  OAUTH2_PROVIDER_SCOPES=(dict, {"openid": "OpenID Connect scope" }),
-  OAUTH2_PROVIDER_ALLOWED_SCHEMES=(list, ["https", "http"]),
-  OAUTHLIB_INSECURE_TRANSPORT=(bool, "1"),
-  STATIC_ROOT=(str, BASE_DIR / "static"),
-  STATIC_URL=(str, "static/"),
-  TEMPLATES_DIRS=(list, [BASE_DIR / "templates"]),
-
+""",
+    ),
+    OAUTH2_PROVIDER_SCOPES=(dict, {"openid": "OpenID Connect scope"}),
+    OAUTH2_PROVIDER_ALLOWED_SCHEMES=(list, ["https", "http"]),
+    OAUTHLIB_INSECURE_TRANSPORT=(bool, "1"),
+    STATIC_ROOT=(str, BASE_DIR / "static"),
+    STATIC_URL=(str, "static/"),
+    TEMPLATES_DIRS=(list, [BASE_DIR / "templates"]),
 )
 
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/4.2/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = env('SECRET_KEY')
+SECRET_KEY = env("SECRET_KEY")
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = env('DEBUG')
+DEBUG = env("DEBUG")
 
-ALLOWED_HOSTS = env('ALLOWED_HOSTS')
+ALLOWED_HOSTS = env("ALLOWED_HOSTS")
 
 
 # Application definition