Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified IP addres...

diff --cc Lib/test/test_urllib2.py
index 14336705faa66cbf7376046b78eb0ee024d8c736,1704683b4dd61ac357ccb6ba98ccb90d80389584..69bcfa25cc4f11ba25a133b96d96e46b175ffa45
--- 1/Lib/test/test_urllib2.py
--- 2/Lib/test/test_urllib2.py
+++ b/Lib/test/test_urllib2.py
@@@ -4,10 -4,11 +4,12 @@@ from test import suppor
  import os
  import io
  import socket
 +import array
  
  import urllib.request
- from urllib.request import Request, OpenerDirector
+ # The proxy bypass method imported below has logic specific to the OSX
+ # proxy config data structure but is testable on all platforms.
+ from urllib.request import Request, OpenerDirector, _proxy_bypass_macosx_sysconf
  
  # XXX
  # Request

diff --cc Lib/urllib/request.py
Simple merge

diff --cc Misc/NEWS
index f3442a52bbbb44e5f5ab3ce81c00c79077ff6003,d4ce939119fd230178cdc05bcc10dc92bac1bb74..a201895953992a5539999252d60866da33632a90
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -34,6 -40,6 +34,9 @@@ Core and Builtin
  Library
  -------
  
++- Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified 
++  IP addresses in the proxy exception list. 
++
  - Issue #11491: dbm.error is no longer raised when dbm.open is called with
    the "n" as the flag argument and the file exists. The behavior matches
    the documentation and general logic.