1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py
index f787407..9f7ebd7 100644
--- a/Lib/urllib/request.py
+++ b/Lib/urllib/request.py
@@ -657,6 +657,10 @@ class ProxyHandler(BaseHandler):
         proxy_type, user, password, hostport = _parse_proxy(proxy)
         if proxy_type is None:
             proxy_type = orig_type
+
+        if req.host and proxy_bypass(req.host):
+            return None
+
         if user and password:
             user_pass = '%s:%s' % (unquote(user),
                                    unquote(password))