.. index::
   pair: packages; ``identifier``
   pair: packages; ``name``
   pair: packages; ``version``

.. role:: red

.. code-block:: python
    :linenos:

    """This package implements a very simple VisTrails module called
    PythonCalc. This is intended as a simple example that can be referred
    to by users to create their own packages and modules later.

    If you're interested in developing new modules for VisTrails, you
    should also consult the documentation in the User's Guide and in
    core/modules/vistrails_module.py.
    """

    identifier = 'org.vistrails.vistrails.pythoncalc'
    name = 'PythonCalc'
    version = '0.9.2'
