diff --git a/tobiko/openstack/stacks/_centos.py b/tobiko/openstack/stacks/_centos.py
index ece53b399..0ca2246f8 100644
--- a/tobiko/openstack/stacks/_centos.py
+++ b/tobiko/openstack/stacks/_centos.py
@@ -16,7 +16,6 @@ from __future__ import absolute_import
 import tobiko
 from tobiko import config
 from tobiko.openstack import glance
-from tobiko.openstack import nova
 from tobiko.openstack.stacks import _nova
 
 
@@ -50,10 +49,3 @@ class CentosServerStackFixture(_nova.ServerStackFixture):
 
     #: Flavor used to create a Nova server instance
     flavor_stack = tobiko.required_setup_fixture(CentosFlavorStackFixture)
-
-    #: Install Python3 package by default
-    @property
-    def cloud_config(self):
-        return nova.cloud_config(
-            super(CentosServerStackFixture, self).cloud_config,
-            packages=['python3'])
diff --git a/tobiko/tests/functional/openstack/stacks/test_centos.py b/tobiko/tests/functional/openstack/stacks/test_centos.py
index 238e08bbe..b98ef0ef6 100644
--- a/tobiko/tests/functional/openstack/stacks/test_centos.py
+++ b/tobiko/tests/functional/openstack/stacks/test_centos.py
@@ -15,13 +15,9 @@
 #    under the License.
 from __future__ import absolute_import
 
-import six
-import yaml
-
 import tobiko
 from tobiko.shell import sh
 from tobiko.openstack import keystone
-from tobiko.openstack import nova
 from tobiko.openstack import stacks
 from tobiko.tests.functional.openstack.stacks import test_cirros
 
@@ -33,26 +29,9 @@ class CentosServerStackTest(test_cirros.CirrosServerStackTest):
     #: Stack of resources with a server attached to a floating IP
     stack = tobiko.required_setup_fixture(stacks.CentosServerStackFixture)
 
-    def test_cloud_config(self):
-        cloud_config = self.stack.cloud_config
-        self.assertIn('python3', cloud_config['packages'])
-
-    def test_user_data(self):
-        user_data = self.stack.user_data
-        self.assertIsInstance(user_data, six.string_types)
-        self.assertTrue(user_data.startswith('#cloud-config\n'), user_data)
-        self.assertEqual(self.stack.cloud_config, yaml.load(user_data))
-
-    def test_platform_python3(self):
+    def test_platform_python(self):
         python_version = sh.execute(['/usr/libexec/platform-python',
                                      '--version'],
                                     ssh_client=self.stack.ssh_client).stdout
         self.assertTrue(python_version.startswith('Python 3.'),
                         python_version)
-
-    def test_python3(self):
-        nova.wait_for_cloud_init_done(ssh_client=self.stack.ssh_client)
-        python_version = sh.execute(['python3', '--version'],
-                                    ssh_client=self.stack.ssh_client).stdout
-        self.assertTrue(python_version.startswith('Python 3.'),
-                        python_version)