fix the network tests failed

python-dns.spec

@@ -14,7 +14,7 @@ messages, names, and records.
 Name:           python-dns
 Summary:        %{sum}
 Version:        1.16.0
-Release:        1
+Release:        2
 License:        MIT
 URL:            http://www.dnspython.org/
 Source0: 	http://www.dnspython.org/kits/%{version}/dnspython-%{version}.tar.gz
@@ -23,6 +23,7 @@ BuildArch:      noarch
 Patch0:         unicode_label_escapify.patch
 Patch1:         collections_abc.patch
 Patch2:         base64.patch
+Patch3:         retry-network-availble.patch 
 
 BuildRequires:  python3-devel python3-setuptools python3-pycryptodome python3-ecdsa
 
@@ -61,11 +62,14 @@ find examples -type f | xargs chmod a-x
 %doc examples
 
 %changelog
+* Tue Nov 10 2020 jinzhimin<jinzhimin2@huawei.com> - 1.16.0-2
+- fix the network tests failed
+
 * Tue Nov 10 2020 jinzhimin<jinzhimin2@huawei.com> - 1.16.0-1
-* update to 1.16.0
+- update to 1.16.0
 
 * Wed Oct 21 2020 jinzhimin<jinzhimin2@huawei.com> - 1.15.0-11
-* remove python2-dns subpackage
+- remove python2-dns subpackage
 
 * Fri Dec 6 2019 caomeng<caomeng5@huawei.com> - 1.15.0-10
 - Package init

retry-network-availble.patch

@@ -0,0 +1,35 @@
+From 5e24db163fa5070bbb69f09473cf50436e5a323c Mon Sep 17 00:00:00 2001
+From: jinzhimin <jinzhimin2@huawei.com>
+Date: Tue, 10 Nov 2020 20:32:07 +0800
+Subject: [PATCH] retry-network-availble
+
+---
+ tests/test_resolver.py | 12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+diff --git a/tests/test_resolver.py b/tests/test_resolver.py
+index 1738c1a..b91ba0b 100644
+--- a/tests/test_resolver.py
++++ b/tests/test_resolver.py
+@@ -32,10 +32,14 @@ from dns._compat import xrange, PY3
+ # Some tests require the internet to be available to run, so let's
+ # skip those if it's not there.
+ _network_available = True
+-try:
+-    socket.gethostbyname('dnspython.org')
+-except socket.gaierror:
+-    _network_available = False
++count = 0
++while count < 5 and _network_available:
++        try:
++                socket.gethostbyname('dnspython.org')
++                _network_available = True
++        except socket.gaierror:
++                _network_available = False
++        count += 1
+
+ resolv_conf = u"""
+     /t/t
+--
+2.27.0
+