Let's convert an extra namespace structural file 
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.. index:: extras

The default namespace for variables and families is `rougail`. It is possible to define other namespaces. These additional namespaces are called `extras`.

.. FIXME: faire une page pour les extras

Additional namespaces are defined during configuration.

For example, here's how to add an `example` namespace:

.. code-block:: python

    RougailConfig['extra_namespaces']['example'] = ['extras/']

Then let's create an extra :term:`structure file` :file:`extras/00-base.yml`:

.. code-block:: yaml
   :caption: the :file:`extras/00-base.yml` file content
    ---
    version: '1.1'
    my_variable_extra:
      default: my_value_extra

Then, let's create the :term:`Tiramisu` objects via the following :file:`script.py` script:

.. code-block:: python
    :caption: the :file:`script.py` file content

    from rougail import Rougail, RougailConfig

    RougailConfig['main_structural_directories'] = ['dict/']
    RougailConfig['extra_namespaces']['example'] = ['extras/']
    rougail = Rougail()
    config = rougail.get_config()
    print(config.value.dict())

Let's execute `script.py`:

.. code-block:: bash

    $ python3 script.py
    {'rougail.my_variable': 'my_value', 'example.my_variable_extra': 'my_value_extra'}