{
    "info": {
        "author": "Chris Beaumont",
        "author_email": "cbeaumont@cfa.harvard.edu",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 4 - Beta",
            "Environment :: Console",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Natural Language :: English",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 2.6",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.3",
            "Topic :: Utilities"
        ],
        "description": "echo: Callback Properties in Python\r\n===================================\r\n\r\nEcho is a small library for attaching callback functions to property\r\nstate changes. For example:\r\n\r\n::\r\n\r\n    class Switch(object):\r\n        state = CallbackProperty('off')\r\n\r\n    def report_change(state):\r\n        print 'the switch is %s' % state\r\n\r\n    s = Switch()\r\n    add_callback(s, 'state', report_change)\r\n\r\n    s.state = 'on'  # prints 'the switch is on'\r\n\r\nCalllbackProperties can also be built using decorators\r\n\r\n::\r\n\r\n    class Switch(object):\r\n\r\n          @callback_property\r\n          def state(self):\r\n            return self._state\r\n\r\n          @state.setter\r\n          def state(self, value):\r\n              if value not in ['on', 'off']:\r\n                  raise ValueError(\"invalid setting\")\r\n              self._state = value\r\n\r\nFull documentation is avilable `here <https://echo.rtfd.org/>`__\r\n\r\n|Build Status| |Coverage Status|\r\n\r\n.. |Build Status| image:: https://travis-ci.org/glue-viz/echo.png\r\n   :target: https://travis-ci.org/glue-viz/echo?branch=master\r\n.. |Coverage Status| image:: https://coveralls.io/repos/glue-viz/echo/badge.png\r\n   :target: https://coveralls.io/r/glue-viz/echo",
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        "home_page": "https://github.com/glue-viz/echo",
        "keywords": "",
        "license": "MIT",
        "maintainer": "",
        "maintainer_email": "",
        "name": "echo",
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        "release_url": "https://pypi.org/project/echo/0.1/",
        "requires_dist": null,
        "requires_python": null,
        "summary": "Callback Properties in Python",
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