diff --git a/config.py b/config.py
index 4550b14..2b8a6cb 100755
--- a/config.py
+++ b/config.py
@@ -1,6 +1,7 @@
 import pytoml as toml
 import os
 
+
 def load_env():
     """
     load environment variables from the environment. If empty, use default
@@ -9,44 +10,44 @@ def load_env():
     :return: config dictionary of dictionaries.
     """
     with open('config.toml.example') as defaultconf:
-        config = toml.load(defaultconf)
+        configdict = toml.load(defaultconf)
 
     try:
-        config['twitter']['consumer_key'] = os.environ['CONSUMER_KEY']
+        configdict['twitter']['consumer_key'] = os.environ['CONSUMER_KEY']
     except KeyError:
         pass
 
     try:
-        config['twitter']['consumer_secret'] = os.environ['CONSUMER_SECRET']
+        configdict['twitter']['consumer_secret'] = os.environ['CONSUMER_SECRET']
     except KeyError:
         pass
 
     try:
-        config['web']['host'] = os.environ['HOST']
+        configdict['web']['host'] = os.environ['HOST']
     except KeyError:
         pass
 
     try:
-        config['web']['port'] = os.environ['PORT']
+        configdict['web']['port'] = os.environ['PORT']
     except KeyError:
         pass
 
     try:
-        config['web']['contact'] = os.environ['CONTACT']
+        configdict['web']['contact'] = os.environ['CONTACT']
     except KeyError:
         pass
 
     try:
-        config['mail']['mbox_user'] = os.environ['MBOX_USER']
+        configdict['mail']['mbox_user'] = os.environ['MBOX_USER']
     except KeyError:
         pass
 
     try:
-        config['database']['db_path'] = os.environ['DB_PATH']
+        configdict['database']['db_path'] = os.environ['DB_PATH']
     except KeyError:
         pass
 
-    return config
+    return configdict
 
 
 # read config in TOML format (https://github.com/toml-lang/toml#toml)