Skip to main content

[wx]Python event programming framework

Project description


.. image::

.. image::

.. image::

.. image::

``fsleyes-props`` is a library which is used by used by `FSLeyes
<>`_, and which allows you to:

- Listen for change to attributes on a python object,

- Automatically generate ``wxpython`` widgets which are bound
to attributes of a python object

- Automatically generate a command line interface to set
values of the attributes of a python object.

To do this, you just need to subclass the :class:`.HasProperties` class,
and add some :class:`.PropertyBase` types as class attributes.


You can install ``fsleyes-props`` via pip. If you are using Linux, you need to
install wxPython first, as binaries are not available on PyPI. Change the URL
for your specific platform::

pip install -f wxpython

Then install ``fsleyes-props`` like so::

pip install fsleyes-props

``fsleyes-props`` is also available on
`conda-forge <>`_::

conda install -c conda-forge fsleyes-props


All of the dependencies of ``fsleyes-props`` are listed in the
`requirements.txt <requirements.txt>`_ file. ``fsleyes-props`` can be used
without wxPython, but GUI functionality will not be available.

Dependencies for running the tests and building documentation are listed in the
`requirements-dev.txt <requirements-dev.txt>`_ file.


``fsleyes-props`` is documented using `sphinx
<http://>`_. You can build the API documentation by

pip install -r requirements-dev.txt
python doc

The HTML documentation will be generated and saved in the ``doc/html/``


Run the test suite via::

pip install -r requirements-dev.txt
python test

Many of the tests assume that a display is accessible - if you are running on
a headless machine, you may need to run the tests using ``xvfb-run``.

Example usage

.. code-block:: python

>>> import fsleyes_props as props
>>> class PropObj(props.HasProperties):
>>> myProperty = props.Boolean()
>>> myPropObj = PropObj()
>>> # Access the property value as a normal attribute:
>>> myPropObj.myProperty = True
>>> myPropObj.myProperty
>>> # access the props.Boolean instance:
>>> myPropObj.getProp('myProperty')
<props.prop.Boolean at 0x1045e2710>
>>> # access the underlying props.PropertyValue object
>>> # (there are caveats for List properties):
>>> myPropObj.getPropVal('myProperty')
<props.prop.PropertyValue instance at 0x1047ef518>
>>> # Receive notification of property value changes
>>> def myPropertyChanged(value, *args):
>>> print('New property value: {}'.format(value))
>>> myPropObj.addListener(
>>> 'myProperty', 'myListener', myPropertyChanged)
>>> myPropObj.myProperty = False
New property value: False
>>> # Remove a previously added listener
>>> myPropObj.removeListener('myListener')


If you would like to contribute to ``fsleyes-props``, take a look at the
``fslpy`` `contributing guide

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
fsleyes_props-1.6.5-py2.py3-none-any.whl (105.0 kB) Copy SHA256 hash SHA256 Wheel py2.py3
fsleyes-props-1.6.5.tar.gz (113.6 kB) Copy SHA256 hash SHA256 Source None

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page