Pre-deployment checking : ansible-playbook -i /usr/share/kolla/ansible/inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla  /usr/share/kolla/ansible/prechecks.yml  --verbose --verbose --verbose
No config file found; using defaults
ERROR! Unexpected Exception: name 'unicode' is not defined
the full traceback was:

Traceback (most recent call last):
  File "/usr/bin/ansible-playbook", line 92, in <module>
    exit_code = cli.run()
  File "/usr/lib64/python3.4/site-packages/ansible/cli/playbook.py", line 154, in run
    results = pbex.run()
  File "/usr/lib64/python3.4/site-packages/ansible/executor/playbook_executor.py", line 74, in run
    self._inventory.set_playbook_basedir(os.path.dirname(playbook_path))
  File "/usr/lib64/python3.4/site-packages/ansible/inventory/__init__.py", line 705, in set_playbook_basedir
    found_group_vars = self._find_group_vars_files(self._playbook_basedir)
  File "/usr/lib64/python3.4/site-packages/ansible/inventory/__init__.py", line 736, in _find_group_vars_files
    found_vars = set(os.listdir(unicode(path)))
NameError: name 'unicode' is not defined
Command failed ansible-playbook -i /usr/share/kolla/ansible/inventory/all-in-one -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla  /usr/share/kolla/ansible/prechecks.yml  --verbose --verbose --verbose