From 4ca2847b66d06d6ab469b6273e7dc72efa58ca4d Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 1 Nov 2020 07:03:03 +0530
Subject: [PATCH] Add a has_key() method to the config classes for third party
 plugins that have not been ported to python 3

---
 src/calibre/utils/config.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/calibre/utils/config.py b/src/calibre/utils/config.py
index 924c1db9ac..68294d8733 100644
--- a/src/calibre/utils/config.py
+++ b/src/calibre/utils/config.py
@@ -362,6 +362,9 @@ class XMLConfig(dict):
             self.clear()
         self.update(d)
 
+    def has_key(self, key):
+        return dict.__contains__(self, key)
+
     def __getitem__(self, key):
         try:
             return dict.__getitem__(self, key)