python/tests/dns_forwarder: fix for python 2.6

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Garming Sam <garming@samba.org>
Autobuild-Date(master): Tue May 17 07:39:03 CEST 2016 on sn-devel-144

diff --git a/python/samba/tests/dns_forwarder.py b/python/samba/tests/dns_forwarder.py
index a90b0070619b5d6f850a9b3fd06cc511cde45163..de36de9c979daf0b3e19eb531f921159ed583030 100644 (file)
--- a/python/samba/tests/dns_forwarder.py
+++ b/python/samba/tests/dns_forwarder.py
@@ -76,7 +76,7 @@ def make_txt_record(records):
 
 class DNSTest(TestCase):
 
-    errcodes = {v: k for k, v in vars(dns).items() if k.startswith('DNS_RCODE_')}
+    errcodes = dict((v, k) for k, v in vars(dns).items() if k.startswith('DNS_RCODE_'))
 
     def assert_dns_rcode_equals(self, packet, rcode):
         "Helper function to check return code"