From abe02ed89fa7f575877a882cb5ba337290eb27d1 Mon Sep 17 00:00:00 2001
From: Mark Shannon <mark@semmle.com>
Date: Fri, 29 Apr 2016 16:49:24 +0100
Subject: [PATCH] Initialize hash_utf8 to None, preventing NameError. Fixes
 #3138.

---
 requests/auth.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/requests/auth.py b/requests/auth.py
index edf4c8dc..73f8e9da 100644
--- a/requests/auth.py
+++ b/requests/auth.py
@@ -93,6 +93,7 @@ class HTTPDigestAuth(AuthBase):
         qop = self._thread_local.chal.get('qop')
         algorithm = self._thread_local.chal.get('algorithm')
         opaque = self._thread_local.chal.get('opaque')
+        hash_utf8 = None
 
         if algorithm is None:
             _algorithm = 'MD5'