{
    "info": {
        "author": "Kilte Leichnam",
        "author_email": "nwotnbm@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Programming Language :: Python",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.4",
            "Programming Language :: Python :: 3.5"
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        "description": "========\nMediator\n========\n\nA library implements the Mediator pattern to make your code extensible.\n\nInspired by `symfony/event-dispatcher <https://github.com/symfony/event-dispatcher>`_ component.\n\n.. image:: https://img.shields.io/travis/Kilte/mediator.svg?style=flat-square\n    :target: https://travis-ci.org/Kilte/mediator\n\nInstallation\n============\n\nUsing pip:\n\n.. code:: sh\n\n    # pip install mediator\n\nManually:\n\n.. code:: sh\n\n    $ git clone https://github.com/Kilte/mediator\n    $ cd mediator\n    # python setup.py install\n\nUsage\n=====\n\n.. code:: python\n\n    from mediator import Mediator\n\n    m = Mediator()\n\nDefining events\n----------------------\n\n.. code:: python\n\n    from mediator import Event\n\n\n    class EventOne(Event):\n        pass\n\n\n    class EventTwo(Event):\n        event_name = 'event_two'\n\nAdding a listener\n-----------------\n\n.. code:: python\n\n    def event_listener(event):\n        print('Got event: %r' % event)\n\n    m.add_listener(EventOne, event_listener)\n    # or m.add_listener('EventOne', event_listener)\n    m.add_listener('event_two', event_listener)\n    # or m.add_listener(EventTwo, event_listener)\n\nTriggering events\n-----------------\n\n.. code:: python\n\n    event1 = EventOne()\n    event2 = EventTwo()\n\n    m.dispatch(event1)\n    # Got event: <EventOne object at 0x7f954bc2b250>\n\n    m.dispatch(event2)\n    # Got event: <EventTwo object at 0x7f954bbbd510>\n\nRemoving a listener\n-------------------\n\n.. code:: python\n\n    def another_listener(event):\n        print('Got another event: %r' % event)\n\n    m.add_listener(EventOne, another_listener)\n    m.remove_listener('EventOne', event_listener)\n    m.dispatch(event1)\n    # Got another event: <EventOne object at 0x7f954bc2b250>\n\n\nRemoving all listeners\n----------------------\n\n.. code:: python\n\n    m.remove_listener('EventOne')\n    m.dispatch(event1)\n    # Nothing was happened\n\n\nUsing priorities\n----------------\n\n.. code:: python\n\n    m.add_listener('EventOne', another_listener, -255)\n    m.add_listener('EventOne', event_listener, 255)\n    m.dispatch(event1)\n    # Got another event: <EventOne object at 0x7f954bc2b250>\n    # Got event: <EventOne object at 0x7f954bc2b250>\n\n\nUsing Subscribers\n-----------------\n\n.. code:: python\n\n    from mediator import SubscriberInterface\n\n\n    class Subscriber(SubscriberInterface):\n        def first(self, event):\n            event.first = True\n\n        def middle(self, event):\n            event.middle = True\n\n        def last(self, event):\n            event.last = True\n\n        def event2_handler(self, event):\n            event.success = True\n\n        def event3_handler(self, event):\n            event.success = True\n\n        def get_subscribed_events(self):\n            return {\n                'event1': [\n                    ['middle'],\n                    ['first', -100],\n                    ['last', 100]\n                ],\n                'event2': 'event2_handler',\n                'event3': ['event3_handler']\n            }\n\n    class Event1(Event):\n        event_name = 'event1'\n\n        def __init__(self):\n             self.first = False\n             self.middle = False\n             self.last = False\n\n    class Event2(Event):\n        event_name = 'event2'\n\n         def __init__(self):\n             self.success = True\n\n    class Event3(Event2):\n        event_name = 'event3'\n\n    subscriber = Subscriber()\n    event1 = Event1()\n    event2 = Event2()\n    event3 = Event3()\n\n    m.add_subscriber(subscriber)\n\n    m.dispatch(event1)\n    print('%s;%s;%s' % (event1.first, event1.middle, event1.last))\n    # True;True;True\n\n    m.dispatch(event2)\n    print(event2.success)\n    # True\n\n    m.dispatch(event3)\n    print(event3.success)\n    # True\n\n\nAdding listeners using decorator\n--------------------------------\n\n.. code:: python\n\n    import sys\n    import venusian\n\n    from mediator import VENUSIAN_CATEGORY\n\n\n    @SomeEvent.listen(priority=255, instance='mediator', category=VENUSIAN_CATEGORY)  # All args are optional\n    def some_event_listener(event):\n        event.attr = 'value'\n\n    scanner = venusian.Scanner(mediator=mediator)\n    scanner.scan(package=sys.modules[__name__], categories=[VENUSIAN_CATEGORY])\n    m.dispatch(SomeEvent())\n\nSee source code and tests for more information.\n\nChangelog\n=========\n\n\n0.4.0 (17.03.2017)\n------------------\n\n- Fixed multiple inheritance support\n- Improved venusian support\n\n0.3.0 (25.02.2016)\n------------------\n\n- ``Mediator.__init__`` and ``Mediator.scan`` now takes keyword arguments only.\n- Removed ``Mediator.set_scanner`` method.\n- ``Mediator.dispatch()`` now takes event instances only.\n- ``Mediator.add_listener`` and ``Mediator.remove_listener`` takes subclass of ``Event`` or ``str``.\n- ``Event.get_name()`` and ``Event.set_name()`` were removed in favor of ``Event.get_event_name()`` and ``Event.event_name`` class attribute.\n- And now there is no requirement to call ``super().__init__()`` in your own events.\n\n0.2.1 (18.12.2015)\n------------------\n\n- Added ``Mediator.set_scanner`` method in order to allow use custom scanner instance.\n\n0.2.0 (17.12.2015)\n------------------\n\n- Automatic event name detection based on a class name.\n- Added ``%Event%.listen`` decorator.\n\n0.1.0 (19.11.2015)\n------------------\n\n- First release.\n\nContributing\n============\n\n- Fork and clone it\n- Create your feature branch (git checkout -b awesome-feature)\n- Make your changes\n- Write/update tests, if it's necessary (make buildout && make tests)\n- Update README.md, if it's necessary\n- Push your branch (git push origin awesome-feature)\n- Send a pull request\n\nLICENSE\n=======\n\nThe MIT License (MIT)",
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