diff --git a/kallithea/config/middleware.py b/kallithea/config/middleware.py
--- a/kallithea/config/middleware.py
+++ b/kallithea/config/middleware.py
@@ -14,9 +14,11 @@
 """WSGI middleware initialization for the Kallithea application."""
 
 import logging.config
+
 from kallithea.config.app_cfg import base_config
 from kallithea.config.environment import load_environment
 
+
 __all__ = ['make_app']
 
 # Use base_config to setup the necessary PasteDeploy application factory.