diff --git a/webmails/roundcube/start.py b/webmails/roundcube/start.py
index 36502eb6..3e47ce69 100755
--- a/webmails/roundcube/start.py
+++ b/webmails/roundcube/start.py
@@ -8,31 +8,29 @@ import subprocess
 
 log.basicConfig(stream=sys.stderr, level=os.environ.get("LOG_LEVEL", "WARNING"))
 
-os.environ["MAX_FILESIZE"] = str(int(int(os.environ.get("MESSAGE_SIZE_LIMIT"))*0.66/1048576))
+os.environ["MAX_FILESIZE"] = str(int(int(os.environ.get("MESSAGE_SIZE_LIMIT")) * 0.66 / 1048576))
 
-db_flavor=os.environ.get("ROUNDCUBE_DB_FLAVOR","sqlite")
-if db_flavor=="sqlite":
-    os.environ["DB_DSNW"]="sqlite:////data/roundcube.db"
-elif db_flavor=="mysql":
-    os.environ["DB_DSNW"]="mysql://%s:%s@%s/%s" % (
-        os.environ.get("ROUNDCUBE_DB_USER","roundcube"),
+db_flavor = os.environ.get("ROUNDCUBE_DB_FLAVOR", "sqlite")
+if db_flavor == "sqlite":
+    os.environ["DB_DSNW"] = "sqlite:////data/roundcube.db"
+elif db_flavor == "mysql":
+    os.environ["DB_DSNW"] = "mysql://%s:%s@%s/%s" % (
+        os.environ.get("ROUNDCUBE_DB_USER", "roundcube"),
         os.environ.get("ROUNDCUBE_DB_PW"),
-        os.environ.get("ROUNDCUBE_DB_HOST",os.environ.get("DB_HOST","database")),
-        os.environ.get("ROUNDCUBE_DB_NAME","roundcube")
-        )
-elif db_flavor=="postgresql":
-    os.environ["DB_DSNW"]="pgsql://%s:%s@%s/%s" % (
-        os.environ.get("ROUNDCUBE_DB_USER","roundcube"),
+        os.environ.get("ROUNDCUBE_DB_HOST", os.environ.get("DB_HOST", "database")),
+        os.environ.get("ROUNDCUBE_DB_NAME", "roundcube")
+    )
+elif db_flavor == "postgresql":
+    os.environ["DB_DSNW"] = "pgsql://%s:%s@%s/%s" % (
+        os.environ.get("ROUNDCUBE_DB_USER", "roundcube"),
         os.environ.get("ROUNDCUBE_DB_PW"),
-        os.environ.get("ROUNDCUBE_DB_HOST",os.environ.get("DB_HOST","database")),
-        os.environ.get("ROUNDCUBE_DB_NAME","roundcube")
-        )
+        os.environ.get("ROUNDCUBE_DB_HOST", os.environ.get("DB_HOST", "database")),
+        os.environ.get("ROUNDCUBE_DB_NAME", "roundcube")
+    )
 else:
-    print("Unknown ROUNDCUBE_DB_FLAVOR: %s",db_flavor)
+    print("Unknown ROUNDCUBE_DB_FLAVOR: %s", db_flavor)
     exit(1)
 
-
-
 conf.jinja("/php.ini", os.environ, "/usr/local/etc/php/conf.d/roundcube.ini")
 
 # Create dirs, setup permissions
@@ -42,7 +40,8 @@ os.system("chown -R www-data:www-data /var/www/html/logs")
 
 try:
     print("Initializing database")
-    result=subprocess.check_output(["/var/www/html/bin/initdb.sh","--dir","/var/www/html/SQL"],stderr=subprocess.STDOUT)
+    result = subprocess.check_output(["/var/www/html/bin/initdb.sh", "--dir", "/var/www/html/SQL"],
+                                     stderr=subprocess.STDOUT)
     print(result.decode())
 except subprocess.CalledProcessError as e:
     if "already exists" in e.stdout.decode():
@@ -53,7 +52,7 @@ except subprocess.CalledProcessError as e:
 
 try:
     print("Upgrading database")
-    subprocess.check_call(["/var/www/html/bin/update.sh","--version=?","-y"],stderr=subprocess.STDOUT)
+    subprocess.check_call(["/var/www/html/bin/update.sh", "--version=?", "-y"], stderr=subprocess.STDOUT)
 except subprocess.CalledProcessError as e:
     quit(1)
 
@@ -61,7 +60,7 @@ except subprocess.CalledProcessError as e:
 os.system("chown -R www-data:www-data /data")
 
 # Tail roundcube logs
-subprocess.Popen(["tail","-f","-n","0","/var/www/html/logs/errors.log"])
+subprocess.Popen(["tail", "-f", "-n", "0", "/var/www/html/logs/errors.log"])
 
 # Run apache
 os.execv("/usr/local/bin/apache2-foreground", ["apache2-foreground"])