From cb15310d6aacd1c1e3b3345b6096d24ea2b79d49 Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.com>
Date: Tue, 29 May 2012 19:54:40 -0400
Subject: [PATCH] by @mwielgoszewski

---
 requests/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requests/utils.py b/requests/utils.py
index 1fe853a..8c445e7 100644
--- a/requests/utils.py
+++ b/requests/utils.py
@@ -414,7 +414,7 @@ def unquote_unreserved(uri):
         parts = uri.split('%')
         for i in range(1, len(parts)):
             h = parts[i][0:2]
-            if len(h) == 2:
+            if len(h) == 2 and h.isalnum():
                 c = chr(int(h, 16))
                 if c in UNRESERVED_SET:
                     parts[i] = c + parts[i][2:]
-- 
2.34.1