Add python3 compat header

v2/ansible/parsing/vault/__init__.py

@@ -18,6 +18,10 @@
 # example playbook to bootstrap this script in the examples/ dir which
 # installs ansible and sets it up to run on cron.
 
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
 import os
 import shlex
 import shutil

v2/ansible/parsing/yaml/strings.py

@@ -15,6 +15,10 @@
 # You should have received a copy of the GNU General Public License
 # along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
 
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
 __all__ = [
     'YAML_SYNTAX_ERROR',
     'YAML_POSITION_DETAILS',