Workaround for some linux systems that appear to have a Qt theme/input method? plugin installed that generated QResizeEvents with type set to KeyPress

src/calibre/gui2/complete2.py

@@ -211,7 +211,10 @@ class Completer(QListView):  # {{{
         # self.debug_event(e)
 
         if etype == e.KeyPress:
+            try:
                 key = e.key()
+            except AttributeError:
+                return QObject.eventFilter(self, obj, e)
             if key == Qt.Key_Escape:
                 self.hide()
                 e.accept()