Use unittest.mock instead of third party mock

Now that we no longer support py27, we can use the standard library
unittest.mock module instead of the third party mock lib.

Change-Id: I446ee142c7a17446372c910f7f2a36d55df18e04
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/glanceclient/tests/unit/test_shell.py b/glanceclient/tests/unit/test_shell.py
index 3027e46..b23591f 100644
--- a/glanceclient/tests/unit/test_shell.py
+++ b/glanceclient/tests/unit/test_shell.py
@@ -21,12 +21,12 @@ import logging
 import os
 import sys
 import traceback
+from unittest import mock
 import uuid
 
 import fixtures
 from keystoneauth1 import exceptions as ks_exc
 from keystoneauth1 import fixture as ks_fixture
-import mock
 from requests_mock.contrib import fixture as rm_fixture
 import six