Fixed #18167 -- Gave advice on checking Django version in the tutorial.

* An admin site that lets you add, change and delete polls.

We'll assume you have :doc:`Django installed </intro/install>` already. You can

tell Django is installed by running the Python interactive interpreter and

typing ``import django``. If that command runs successfully, with no errors,

Django is installed.

tell Django is installed and which version by running the following command:

.. code-block:: bash

    python -c "import django; print(django.get_version())"

You should see either the version of your Django installation or an error

telling "No module named django". Check also that the version number matches

the version of this tutorial. If they don't match, you can refer to the

tutorial for your version of Django or update Django to the newest version.

See :doc:`How to install Django </topics/install>` for advice on how to remove

older versions of Django and install a newer one.

.. admonition:: Where to get help: