try to work around the qbytearray issue

https://anki.tenderapp.com/discussions/ankidesktop/3369-bug-report-for-restoring-from-backup

aqt/main.py

@@ -2,20 +2,29 @@
 # -*- coding: utf-8 -*-
 # License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
-import os, sys, re, traceback, signal
+import os
+import sys
+import re
+import traceback
+import signal
 import  zipfile
+
 from send2trash import send2trash
 from aqt.qt import *
-
 from anki import Collection
 from anki.utils import  isWin, isMac, intTime, splitFields, ids2str
-from anki.hooks import runHook, addHook
 
-import aqt, aqt.progress, aqt.webview, aqt.toolbar, aqt.stats
+from anki.hooks import runHook, addHook
+import aqt
+import aqt.progress
+import aqt.webview
+import aqt.toolbar
+import aqt.stats
 from aqt.utils import  restoreGeom, showInfo, showWarning,\
     restoreState, getOnlyText, askUser, applyStyles, showText, tooltip, \
     openHelp, openLink, checkInvalidFilename
 
+
 class AnkiQt(QMainWindow):
     def __init__(self, app, profileManager, args):
         QMainWindow.__init__(self)
@@ -159,7 +168,6 @@ class AnkiQt(QMainWindow):
         return True
 
     def profileNameOk(self, str):
-        from anki.utils import invalidFilename, invalidFilenameChars
         return not checkInvalidFilename(str)
 
     def onAddProfile(self):
@@ -1051,6 +1059,8 @@ will be lost. Continue?"""))
         elif isWin:
             # make sure ctypes is bundled
             from ctypes import windll, wintypes
+            _dummy = windll
+            _dummy = wintypes
 
     def maybeHideAccelerators(self, tgt=None):
         if not self.hideMenuAccels:
@@ -1076,6 +1086,10 @@ will be lost. Continue?"""))
         self.connect(self.app, SIGNAL("appMsg"), self.onAppMsg)
 
     def onAppMsg(self, buf):
+        if not isinstance(buf, unicode):
+            # even though we're sending this as unicode up above,
+            # a bug report still came in that we were receiving a qbytearray
+            buf = unicode(buf, "utf8", "ignore")
         if self.state == "startup":
             # try again in a second
             return self.progress.timer(1000, lambda: self.onAppMsg(buf), False)