From b6127ca9ca7adf7f5a55c4fe6602afa5744707d0 Mon Sep 17 00:00:00 2001
From: Cory Benfield <lukasaoz@gmail.com>
Date: Thu, 13 Aug 2015 15:04:49 -0400
Subject: [PATCH] Ignore empty fields in no_proxy

---
 requests/utils.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/requests/utils.py b/requests/utils.py
index 3fd0e41f..129134aa 100644
--- a/requests/utils.py
+++ b/requests/utils.py
@@ -499,7 +499,9 @@ def should_bypass_proxies(url):
     if no_proxy:
         # We need to check whether we match here. We need to see if we match
         # the end of the netloc, both with and without the port.
-        no_proxy = no_proxy.replace(' ', '').split(',')
+        no_proxy = (
+            host for host in no_proxy.replace(' ', '').split(',') if host
+        )
 
         ip = netloc.split(':')[0]
         if is_ipv4_address(ip):