From aebe0f1f86437cea38acd81d3ee689470cf69b63 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 24 May 2021 17:02:13 +0530
Subject: [PATCH] py3 compat: Fix sorting in spell check dialog on language
 broken for books that have unknown languages

---
 src/calibre/gui2/tweak_book/spell.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/gui2/tweak_book/spell.py b/src/calibre/gui2/tweak_book/spell.py
index c0f0f00331..7b3b690ec0 100644
--- a/src/calibre/gui2/tweak_book/spell.py
+++ b/src/calibre/gui2/tweak_book/spell.py
@@ -698,7 +698,7 @@ class WordsModel(QAbstractTableModel):
         elif col == 2:
             def key(w):
                 locale = w[1]
-                return (calibre_langcode_to_name(locale.langcode), locale.countrycode)
+                return (calibre_langcode_to_name(locale.langcode) or ''), (locale.countrycode or '')
         else:
             key = self.misspelled_text
         return key