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================
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Python 3 Support
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================
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Ansible 2.2 features a tech preview of Python 3 support. This topic discusses how you can test to make sure your modules and playbooks work with Python 3.
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.. note:: Technology preview features provide early access to upcoming product innovations,
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enabling you to test functionality and provide feedback during the development process.
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Please be aware that tech preview features may not be functionally complete and are not
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intended for production use. To report a Python 3 bug, please see `Community Information & Contributing <http://docs.ansible.com/ansible/community.html#i-d-like-to-report-a-bug>`_.
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Testing Python 3 with commands and playbooks
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----------------------------------------------------
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* `Install Ansible 2.2+ <http://docs.ansible.com/ansible/intro_installation.html>`_
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* To test Python 3 on the controller, run your ansible command via
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``python3``. For example:
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.. code-block:: shell
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python3 /usr/bin/ansible localhost -m ping
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python3 /usr/bin/ansible-playbook sample-playbook.yml
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Testing Python 3 module support
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--------------------------------
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* Set the ansible_python_interpreter configuration option to
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:command:`/usr/bin/python3`. The ``ansible_python_interpreter`` configuration option is
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usually set per-host as an inventory variable associated with a host or group of hosts:
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.. code-block:: ini
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# Example inventory that makes an alias for localhost that uses python3
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[py3-hosts]
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localhost-py3 ansible_host=localhost ansible_connection=local
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[py3-hosts:vars]
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ansible_python_interpreter=/usr/bin/python3
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See the :ref:`inventory documentation <inventory>` for more information.
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* Run your command or playbook:
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.. code-block:: shell
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ansible localhost-py3 -m ping
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ansible-playbook sample-playbook.yml
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Note that you can also use the :option:`-e` command line option to manually
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set the python interpreter when you run a command. For example:
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.. code-block:: shell
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ansible localhost -m ping -e 'ansible_python_interpreter=/usr/bin/python3'
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ansible-playbook sample-playbook.yml -e 'ansible_python_interpreter=/usr/bin/python3'
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What to do if an incompatibility is found
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-----------------------------------------
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If you find a bug while testing modules with Python3 you can submit a bug
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report on `Ansible's GitHub project
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<https://github.com/ansible/ansible/issues/>`_. Be sure to mention Python3 in
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the bug report so that the right people look at it.
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If you would like to fix the code and submit a pull request on github, you can
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refer to :doc:`dev_guide/developing_python3` for information on how we fix
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common Python3 compatibility issues in the Ansible codebase.
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