Update json module to jsonutils

oslo project provide jsonutils, and keystoneclient  use it in many place[1],
this PS to update the remained json module to oslo jsonutils for
consistency.

[1]: https://github.com/openstack/python-keystoneclient/search?utf8=%E2%9C%93&q=jsonutils&type=

Change-Id: Id5275b5e6b5bf8f6d54406dac7ab95a30828cf58

examples/pki/gen_cmsz.py

@@ -12,9 +12,10 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import json
 import os
 
+from oslo_serialization import jsonutils
+
 from keystoneclient.common import cms
 from keystoneclient import utils
 
@@ -44,7 +45,7 @@ def generate_revocation_list():
                 'id': id,
                 "expires": "2112-08-14T17:58:48Z"
             })
-    revoked_json = json.dumps({"revoked": revoked_list})
+    revoked_json = jsonutils.dumps({"revoked": revoked_list})
     with open(make_filename('cms', 'revocation_list.json'), 'w') as f:
         f.write(revoked_json)
     encoded = cms.pkiz_sign(revoked_json,
@@ -91,12 +92,12 @@ for name in EXAMPLE_TOKENS:
 
     # validate the JSON
     try:
-        token_data = json.loads(string_data)
+        token_data = jsonutils.loads(string_data)
     except ValueError as v:
         raise SystemExit('%s while processing token data from %s: %s' %
                          (v, json_file, string_data))
 
-    text = json.dumps(token_data).encode('utf-8')
+    text = jsonutils.dumps(token_data).encode('utf-8')
 
     # Uncomment to record the token uncompressed,
     # useful for debugging

keystoneclient/auth/identity/v3/base.py

@@ -11,10 +11,10 @@
 # under the License.
 
 import abc
-import json
 import logging
 
 from oslo_config import cfg
+from oslo_serialization import jsonutils
 import six
 
 from keystoneclient import access
@@ -189,7 +189,7 @@ class Auth(BaseAuth):
                             authenticated=False, log=False, **rkwargs)
 
         try:
-            _logger.debug(json.dumps(resp.json()))
+            _logger.debug(jsonutils.dumps(resp.json()))
             resp_data = resp.json()['token']
         except (KeyError, ValueError):
             raise exceptions.InvalidResponse(response=resp)

keystoneclient/tests/unit/v2_0/test_client.py

@@ -10,9 +10,10 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
 import uuid
 
+from oslo_serialization import jsonutils
+
 from keystoneauth1 import fixture
 
 from keystoneauth1 import session as auth_session
@@ -75,10 +76,10 @@ class KeystoneClientTest(utils.TestCase):
                                password='password',
                                project_name='exampleproject',
                                auth_url=self.TEST_URL)
-        cache = json.dumps(cl.auth_ref)
+        cache = jsonutils.dumps(cl.auth_ref)
         # Creating a HTTPClient not using session is deprecated.
         with self.deprecations.expect_deprecations_here():
-            new_client = client.Client(auth_ref=json.loads(cache))
+            new_client = client.Client(auth_ref=jsonutils.loads(cache))
         self.assertIsNotNone(new_client.auth_ref)
         with self.deprecations.expect_deprecations_here():
             self.assertTrue(new_client.auth_ref.scoped)
@@ -100,11 +101,11 @@ class KeystoneClientTest(utils.TestCase):
                                password='password',
                                project_name='exampleproject',
                                auth_url=self.TEST_URL)
-        cache = json.dumps(cl.auth_ref)
+        cache = jsonutils.dumps(cl.auth_ref)
         new_auth_url = "http://new-public:5000/v2.0"
         # Creating a HTTPClient not using session is deprecated.
         with self.deprecations.expect_deprecations_here():
-            new_client = client.Client(auth_ref=json.loads(cache),
+            new_client = client.Client(auth_ref=jsonutils.loads(cache),
                                        auth_url=new_auth_url)
         self.assertIsNotNone(new_client.auth_ref)
         with self.deprecations.expect_deprecations_here():

keystoneclient/tests/unit/v3/test_client.py

@@ -11,9 +11,9 @@
 #    under the License.
 
 import copy
-import json
 import uuid
 
+from oslo_serialization import jsonutils
 
 from keystoneauth1 import session as auth_session
 from keystoneclient.auth import token_endpoint
@@ -90,10 +90,10 @@ class KeystoneClientTest(utils.TestCase):
                               password='password',
                               project_id=token.project_id,
                               auth_url=self.TEST_URL)
-        cache = json.dumps(c.auth_ref)
+        cache = jsonutils.dumps(c.auth_ref)
         # Creating a HTTPClient not using session is deprecated.
         with self.deprecations.expect_deprecations_here():
-            new_client = client.Client(auth_ref=json.loads(cache))
+            new_client = client.Client(auth_ref=jsonutils.loads(cache))
         self.assertIsNotNone(new_client.auth_ref)
         self.assertFalse(new_client.auth_ref.domain_scoped)
         self.assertTrue(new_client.auth_ref.project_scoped)
@@ -124,10 +124,10 @@ class KeystoneClientTest(utils.TestCase):
                               password='password',
                               project_id=project_id,
                               auth_url=self.TEST_URL)
-        cache = json.dumps(c.auth_ref)
+        cache = jsonutils.dumps(c.auth_ref)
         # Creating a HTTPClient not using session is deprecated.
         with self.deprecations.expect_deprecations_here():
-            new_client = client.Client(auth_ref=json.loads(cache),
+            new_client = client.Client(auth_ref=jsonutils.loads(cache),
                                        auth_url=new_auth_url)
         self.assertIsNotNone(new_client.auth_ref)
         self.assertFalse(new_client.auth_ref.domain_scoped)