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Configuration
==============
ElementTree configuration
--------------------------
By default, fastkml uses the standard libraries
``xml.etree.ElementTree`` or, if installed, ``lxml.etree``
as its parser, but you can change this by setting the
``fastkml.config.etree`` module variable to a different
implementation.
E.g. if you have lxml installed, but you want to use the
standard ``xml.etree.ElementTree``, you can do this:
.. code-block:: pycon
>>> import fastkml.config
>>> import xml.etree.ElementTree
>>> fastkml.config.set_etree_implementation(xml.etree.ElementTree)
>>> fastkml.config.set_default_namespaces()
You can pass any module that implements the ``ElementTree`` interface
to the ``set_etree_implementation`` function.
.. code-block:: pycon
>>> import fastkml.config
>>> import lxml.etree
>>> fastkml.config.set_etree_implementation(lxml.etree)
Registering additional namespaces
----------------------------------
The ``fastkml.config.set_default_namespaces`` function registers
the ``kml``, ``gx`` and ``atom`` namespaces with the ``ElementTree``.
You can add any other namespaces you want to use by calling
``fastkml.config.register_namespace`` with the namespace prefix and
the namespace URI.
.. code-block:: pycon
>>> import fastkml.config
>>> fastkml.config.register_namespaces(foo="http://foo.com")
>>> fastkml.config.set_default_namespaces()
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