minor code cleanups

Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>

offlineimap/accounts.py

@@ -1,4 +1,4 @@
-# Copyright (C) 2003-2015 John Goerzen & contributors
+# Copyright (C) 2003-2016 John Goerzen & contributors
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -20,6 +20,7 @@ import os
 import time
 from sys import exc_info
 import traceback
+import six
 
 from offlineimap import mbnames, CustomConfig, OfflineImapError
 from offlineimap import globals
@@ -27,8 +28,6 @@ from offlineimap.repository import Repository
 from offlineimap.ui import getglobalui
 from offlineimap.threadutil import InstanceLimitedThread
 
-import six
-
 FOLDER_NAMESPACE = 'LIMITED_FOLDER_'
 
 try:

offlineimap/folder/Maildir.py

@@ -1,5 +1,5 @@
 # Maildir folder support
-# Copyright (C) 2002-2015 John Goerzen & contributors
+# Copyright (C) 2002-2016 John Goerzen & contributors
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -19,11 +19,10 @@ import socket
 import time
 import re
 import os
-from sys import exc_info
-from .Base import BaseFolder
-from threading import Lock
-
 import six
+from sys import exc_info
+from threading import Lock
+from .Base import BaseFolder
 
 try:
     from hashlib import md5

offlineimap/repository/Maildir.py

@@ -146,8 +146,7 @@ class MaildirRepository(BaseRepository):
             if foldername == f.name:
                 return f
         raise OfflineImapError("getfolder() asked for a nonexisting "
-                               "folder '%s'."% foldername,
+            "folder '%s'."% foldername, OfflineImapError.ERROR.FOLDER)
-                               OfflineImapError.ERROR.FOLDER)
 
     def _getfolders_scandir(self, root, extension=None):
         """Recursively scan folder 'root'; return a list of MailDirFolder