From 0c226161f25de70e79108b6bb20c129c24750534 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 21 Apr 2020 20:43:24 +0530
Subject: [PATCH] Open with macOS: Fix error when trying to select executable
 instead of bundle

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

diff --git a/src/calibre/gui2/open_with.py b/src/calibre/gui2/open_with.py
index 7f77c43297..042b3e7bd1 100644
--- a/src/calibre/gui2/open_with.py
+++ b/src/calibre/gui2/open_with.py
@@ -155,7 +155,7 @@ elif isosx:
         return sort_key(entry.get('name') or '')
 
     def finalize_entry(entry):
-        entry['extensions'] = tuple(entry['extensions'])
+        entry['extensions'] = tuple(entry.get('extensions', ()))
         data = get_icon(entry.pop('icon_file', None), as_data=True, pixmap_to_data=pixmap_to_data)
         if data:
             entry['icon_data'] = data