exceptions: use url from Reponse object

Change-Id: Ie98c893e7ae90d9d5aee8cb02be62069547ccb08

gnocchiclient/client.py

@@ -35,5 +35,5 @@ class SessionClient(adapter.Adapter):
                                                   **kwargs)
 
         if raise_exc and resp.status_code >= 400:
-            raise exceptions.from_response(resp, url, method)
+            raise exceptions.from_response(resp, method)
         return resp

gnocchiclient/exceptions.py

@@ -176,7 +176,7 @@ _code_map = dict(
     for c in _error_classes)
 
 
-def from_response(response, url, method=None):
+def from_response(response, method=None):
     """Return an instance of one of the ClientException on an requests response.
 
     Usage::
@@ -196,7 +196,7 @@ def from_response(response, url, method=None):
     kwargs = {
         'code': response.status_code,
         'method': method,
-        'url': url,
+        'url': response.url,
         'request_id': req_id,
     }
 

gnocchiclient/tests/unit/test_exceptions.py

@@ -27,5 +27,5 @@ class ExceptionsTest(base.BaseTestCase):
         r._content = json.dumps(
             {"description": "Archive policy rule foobar does not exist"}
         ).encode('utf-8')
-        exc = exceptions.from_response(r, "http://foobar")
+        exc = exceptions.from_response(r)
         self.assertIsInstance(exc, exceptions.ArchivePolicyRuleNotFound)