python事件处理，c风格
axel的Python项目详细描述
axel是一个受c# 事件，允许轻松而优雅的事件处理。
示例：
from axel import Event
event = Event()
def on_event(*args, **kwargs):
return (args, kwargs)
event += on_event #handler registration
print(event(10, 20, y=30))
>> ((True, ((10, 20), {'y': 30}), <function on_event at 0x00BAA270>),)
event -= on_event #handler is unregistered
print(event(10, 20, y=30))
>> None
class Mouse(object):
def __init__(self):
self.click = Event(self)
self.click += self.on_click #handler registration
def on_click(self, sender, *args, **kwargs):
assert isinstance(sender, Mouse), 'Wrong sender'
return (args, kwargs)
mouse = Mouse()
print(mouse.click(10, 20))
>> ((True, ((10, 20), {}),
>> <bound method Mouse.on_click of <__main__.Mouse object at ...>>),)
mouse.click -= mouse.on_click #handler is unregistered
print(mouse.click(10, 20))
>> None
功能：
- handlers can receive the sender as their first argument - handlers can be executed in the same or separate threads - handlers may be executed synchronous or asynchronous - handlers execution may be synchronized on a lock - the time allocated for the execution of a handler is controllable - the number of actively executed handlers at one time is controllable - the execution result of a handler can be cached - the result of the execution is provided as a tuple ((flag, result, handler),) - in case of error, the traceback may be provided for each handler in error
贡献者：
Erwin Mayer <traderwin at gmail dot com> Rob van der Most <Rob at rmsoft dot nl>
请参阅文档：https://pythonhosted.org/axel
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