tweak imports to work around tooling incorrectly finding module unused

fixes 'quit' from the profile menu, etc

aqt/main.py

@@ -4,7 +4,7 @@
 
 import re
 import signal
-import  zipfile
+import zipfile
 
 from send2trash import send2trash
 from aqt.qt import *

aqt/qt.py

@@ -2,9 +2,13 @@
 # License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
 # imports are all in this file to make moving to pyside easier in the future
+# fixme: make sure not to optimize imports on this file
+
+import sip
+import os
 
-import sip, os
 from anki.utils import isWin, isMac
+
 sip.setapi('QString', 2)
 sip.setapi('QVariant', 2)
 sip.setapi('QUrl', 2)
@@ -18,14 +22,16 @@ from PyQt4.QtGui import *
 from PyQt4.QtWebKit import QWebPage, QWebView, QWebSettings
 from PyQt4.QtNetwork import QLocalServer, QLocalSocket
 
+
 def debug():
   from PyQt4.QtCore import pyqtRemoveInputHook
   from pdb import set_trace
   pyqtRemoveInputHook()
   set_trace()
 
+import sys, traceback
+
 if os.environ.get("DEBUG"):
-    import sys, traceback
     def info(type, value, tb):
         from PyQt4.QtCore import pyqtRemoveInputHook
         for line in traceback.format_exception(type, value, tb):