Kivy Event 在哪里?

kivy 程序都是都需要继承APP基类

而App类在Lib\site-packages\kivy\app.py文件定义

from kivy.event import EventDispatcher

class App(EventDispatcher):

  pass

找到Lib\site-packages\kivy\event.py 里面是这样定义的

import kivy._event

__doc__ = kivy._event.__doc__

EventDispatcher = kivy._event.EventDispatcher

ObjectWithUid = kivy._event.ObjectWithUid

Observable = kivy._event.Observable

又引用了Lib\site-packages\kivy_event.pxd ，而pxd文件只是个类似c里的头文件（接口声明）, 真正的代码实现在

Lib\site-packages\kivy_event.cp36-win32.pyd (pxd描述参考)[https://cloud.tencent.com/developer/news/180987]

那为什么在pycharm 里查看时定义处时为什么会跳转到.PyCharm2018.3\system\python_stubs\498501734\kivy_event.py 文件呢，

答案在这里：

https://stackoverflow.com/questions/24266114/pycharm-what-is-python-stubs

写就是说这个文件时pycahrm为我们根据pyd文件生成的，为方便调试代码, 在.PyCharm2018.3\system\python_stubs\498501734\kivy\_event.py 文件都已经

有详细的说明了：

# encoding: utf-8

# module kivy._event

# from xxxx\lib\site-packages\kivy\_event.cp36-win32.pyd

# by generator 1.146

"""

Event dispatcher

================

All objects that produce events in Kivy implement the :class:`EventDispatcher`

which provides a consistent interface for registering and manipulating event

handlers.

.. versionchanged:: 1.0.9

    Property discovery and methods have been moved from the

    :class:`~kivy.uix.widget.Widget` to the :class:`EventDispatcher`.

"""

巴特西

Kivy Event 在哪里?

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