Issue #16702: Skip proxies for localhost in urllib2_localnet tests

Lib/test/test_urllib2_localnet.py

@@ -352,6 +352,8 @@ class TestUrlopen(unittest.TestCase):
 
     def setUp(self):
         super(TestUrlopen, self).setUp()
+        # Ignore proxies for localhost tests.
+        os.environ['NO_PROXY'] = '*'
         self.server = None
 
     def tearDown(self):

Misc/NEWS

@@ -114,6 +114,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #16702: test_urllib2_localnet tests now correctly ignores proxies for
+  localhost tests.
+
 - Issue #16511: Use default IDLE width and height if config param is not valid.
   Patch Serhiy Storchaka.