Dictionary keys doesn't support slicing. That's throw an error in the program

if the 'keyname' parameter is not passed.

Doing a list(dict())[0] solve this problem.

diff --git a/dns/message.py b/dns/message.py
index 5f82b45ac26d139e632bc084c9251eba6e5f483d..1b310869f439b6db34fd737eb5eab11105f7e707 100644 (file)
--- a/dns/message.py
+++ b/dns/message.py
@@ -467,7 +467,7 @@ class Message(object):
 
         self.keyring = keyring
         if keyname is None:
-            self.keyname = self.keyring.keys()[0]
+            self.keyname = list(self.keyring.keys())[0]
         else:
             if isinstance(keyname, string_types):
                 keyname = dns.name.from_text(keyname)