explicitly define symbols to import instead of 'import *'

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

offlineimap/imaplibutil.py

@@ -24,9 +24,7 @@ import subprocess
 from offlineimap.ui import getglobalui
 import threading
 from offlineimap import OfflineImapError
-from offlineimap.imaplib2 import *
-# Import the symbols we need that aren't exported by default
-from offlineimap.imaplib2 import IMAP4_PORT, IMAP4_SSL_PORT, InternalDate, Mon2num
+from offlineimap.imaplib2 import IMAP4, IMAP4_SSL, zlib, IMAP4_PORT, InternalDate, Mon2num
 
 try:
     import ssl

offlineimap/imapserver.py

@@ -18,7 +18,7 @@
 
 from offlineimap import imaplibutil, imaputil, threadutil, OfflineImapError
 from offlineimap.ui import getglobalui
-from threading import *
+from threading import Lock, BoundedSemaphore
 import thread
 import time
 import hmac

offlineimap/mbnames.py

@@ -18,7 +18,7 @@
 
 import os.path
 import re                               # for folderfilter
-from threading import *
+from threading import Lock
 
 boxes = {}
 config = None

offlineimap/threadutil.py

@@ -16,7 +16,7 @@
 #    along with this program; if not, write to the Free Software
 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 
-from threading import *
+from threading import Lock, Thread, BoundedSemaphore
 from Queue import Queue, Empty
 import traceback
 import thread