Python異步事件處理框架：Pyeventbus

Pyeventbus是個十分輕巧的異步事件處理框架。

特性：

1. Pyeventbus 會檢查你的事件消息類型和偵聽器的類型的合法性，偵聽器和消息需要被正確的創建

2. 允許一個事件消息有多個對應的處理方法，事件處理的時間復雜度是O(k)的，取決于你的偵聽處理函數有多少個

3. 支持同步和異步事件處理，可自定義異步事件處理線程池大小

Example

.. code-block:: python

from eventbus.eventbus import EventBus
#now create a eventbus,the default pool size is 4 and isdaemon is true
eventbus=EventBus()

.. code-block:: python

#add the listener to eventbus so it will use the right handler to process the event
eventbus.register(Listener())

.. code-block:: python

#now the event message were sent,eventbus will process
#this is for the async post
eventbus.async_post(GreetEvent())

#this is for the sync post
eventbus.post(GreetEvent())

.. code-block:: python

#remove the listener
eventbus.unregister(Listener())

.. code-block:: python

#destroy the eventbus
eventbus.destroy()

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