Python 3.x 接收到的信号退出程序，但不调用信号处理程序 问题

程序在主线程内运行后，我发送signal.SIGINT信号中断程序并导致退出。程序关闭，但是由于某种原因没有调用信号处理程序，我需要调用信号处理程序来运行一些清理代码

背景信息 目前我正在运行：
-Windows 10
-Python 3.7.3 x64

我尝试过从内置信号模块发送多个不同的信号，例如SIGINT、SIGTERM和CTRL_C_事件。在所有情况下，程序流都会中断，程序会退出，但不会调用信号处理程序

我知道所有信号都只由主函数接收，所以这是我在代码中尝试遵守的

代码 其中：
client=重写中的不协调客户端对象
init_sanic（）=初始化sanic web框架

类强制关闭（异常）：
"""
要引发的自定义异常
"""
通过
def信号处理器（信号，帧）：
打印（f'接收的信号为{signal}'）
提升强制关闭
如果（uuuu name_uuuuuu=='uuuuuu main_uuuuu'）：
尝试：
signal.signal（signal.SIGINT，信号处理器）
client=DiscordBot（）
bot\u thread=thread（target=lambda:client.run（setup\u pars['client\u TOKEN']））
api_thread=thread（target=lambda:init_sanic（））
线程=[api_线程，bot_线程]
对于线程中的x：
x、 开始（）
尽管如此：
时间。睡眠（100）
除了（强制关机、系统退出）：
打印（'执行关闭操作'）

输出：

[2019-07-31 19:49:18 +0100] [11808] [DEBUG] 

                 Sanic
         Build Fast. Run Fast.


[2019-07-31 19:49:18 +0100] [11808] [INFO] Goin' Fast @ http://0.0.0.0:8000
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [INFO] Starting worker [11808]
Discord Bot Loaded

import os
import signal

os.kill(pid, signal.SIGINT)

Process finished with exit code 2

用于发送信号的代码：

[2019-07-31 19:49:18 +0100] [11808] [DEBUG] 

                 Sanic
         Build Fast. Run Fast.


[2019-07-31 19:49:18 +0100] [11808] [INFO] Goin' Fast @ http://0.0.0.0:8000
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [INFO] Starting worker [11808]
Discord Bot Loaded

import os
import signal

os.kill(pid, signal.SIGINT)

Process finished with exit code 2

最终输出：

[2019-07-31 19:49:18 +0100] [11808] [DEBUG] 

                 Sanic
         Build Fast. Run Fast.


[2019-07-31 19:49:18 +0100] [11808] [INFO] Goin' Fast @ http://0.0.0.0:8000
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [INFO] Starting worker [11808]
Discord Bot Loaded

import os
import signal

os.kill(pid, signal.SIGINT)

Process finished with exit code 2

预期产出 当代码按预期退出时，输出为：

[2019-07-31 19:49:18 +0100] [11808] [DEBUG] 

                 Sanic
         Build Fast. Run Fast.


[2019-07-31 19:49:18 +0100] [11808] [INFO] Goin' Fast @ http://0.0.0.0:8000
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [INFO] Starting worker [11808]
Discord Bot Loaded

Process finished with exit code 2

鉴于预期最终产出为：

[2019-07-31 19:49:18 +0100] [11808] [DEBUG] 

                 Sanic
         Build Fast. Run Fast.


[2019-07-31 19:49:18 +0100] [11808] [INFO] Goin' Fast @ http://0.0.0.0:8000
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [WARNING] Sanic tried to use loop.add_signal_handler but it is not implemented on this platform.
[2019-07-31 19:49:18 +0100] [11808] [INFO] Starting worker [11808]
Discord Bot Loaded
DO SHUTDOWN ACTIONS

Process finished with exit code 2

谢谢你的帮助