in tests, rename context to req for clarity

Author: Shakeel Mohamed

tests/test_binding.py

@@ -428,9 +428,9 @@ def urllib2_handler(url, message, **kwargs):
     method = message['method'].lower()
     data = message.get('body', "") if method == 'post' else None
     headers = dict(message.get('headers', []))
-    context = urllib2.Request(url, data, headers)
+    req = urllib2.Request(url, data, headers)
     try:
-        response = urllib2.urlopen(context)
+        response = urllib2.urlopen(req)
     except urllib2.HTTPError, response:
         pass # Propagate HTTP errors via the returned response message
     return {