Fix for v3 in deleting empty proxies.

diff --git a/requests/models.py b/requests/models.py
index 0ef30251b68b5396aa6d36f1ab8a97b0e09e63e1..af36410222a3c42ef2c785a77b2590bfa869ac93 100644 (file)
--- a/requests/models.py
+++ b/requests/models.py
@@ -111,7 +111,7 @@ class Request(object):
         # Dictionary mapping protocol to the URL of the proxy (e.g. {'http': 'foo.bar:3128'})
         self.proxies = dict(proxies or [])
 
-        for proxy_type,uri_ref in self.proxies.items():
+        for proxy_type,uri_ref in list(self.proxies.items()):
             if not uri_ref:
                 del self.proxies[proxy_type]