From 4cb057f8a580b7fcbfb0d5548b52d508727ede4b Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 25 Jun 2017 15:11:20 +0530
Subject: [PATCH] I have no idea why this happens, but...

Fix #1700191 [Error occasionally pops up when pressing Edit Medata](https://bugs.launchpad.net/calibre/+bug/1700191)
---
 src/calibre/gui2/comments_editor.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/comments_editor.py b/src/calibre/gui2/comments_editor.py
index 72350a3a13..a7ce5a930c 100644
--- a/src/calibre/gui2/comments_editor.py
+++ b/src/calibre/gui2/comments_editor.py
@@ -702,7 +702,8 @@ class Editor(QWidget):  # {{{
 
         self.toolbar2.addAction(self.editor.action_block_style)
         w = self.toolbar2.widgetForAction(self.editor.action_block_style)
-        w.setPopupMode(w.InstantPopup)
+        if hasattr(w, 'setPopupMode'):
+            w.setPopupMode(w.InstantPopup)
         self.toolbar2.addAction(self.editor.action_insert_link)
         # }}}