From 6a265f0d0c0a4b3b8fecf4275d49187a384167f4 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Sun, 5 Jan 2020 14:14:31 +0200
Subject: bpo-39057: Fix urllib.request.proxy_bypass_environment(). (GH-17619)

Ignore leading dots and no longer ignore a trailing newline.
---
 Lib/urllib/parse.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'Lib/urllib/parse.py')

diff --git a/Lib/urllib/parse.py b/Lib/urllib/parse.py
index 31fd7e16ee..34d5f95dd7 100644
--- a/Lib/urllib/parse.py
+++ b/Lib/urllib/parse.py
@@ -1056,9 +1056,9 @@ def _splitport(host):
     """splitport('host:port') --> 'host', 'port'."""
     global _portprog
     if _portprog is None:
-        _portprog = re.compile('(.*):([0-9]*)$', re.DOTALL)
+        _portprog = re.compile('(.*):([0-9]*)', re.DOTALL)
 
-    match = _portprog.match(host)
+    match = _portprog.fullmatch(host)
     if match:
         host, port = match.groups()
         if port:
-- 
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