python - 信号处理程序必须是 signal.SIG_IGN、signal.SIG_DFL 或可调用对象

Question

我正在尝试编写一些代码来使用 python 执行一些数据包嗅探
使用 pyshark.I 有以下一段代码:

import pyshark
print('Pyshark demo')
capture = pyshark.LiveCapture(interface='enp0s8')

但是，当我尝试运行此脚本时，我得到以下堆栈跟踪:

Pyshark demo
Exception ignored in: <bound method BaseEventLoop.__del__ of <_UnixSelectorEventLoop running=False closed=True debug=False>>
Traceback (most recent call last):
  File "/usr/lib/python3.5/asyncio/base_events.py", line 431, in __del__
  File "/usr/lib/python3.5/asyncio/unix_events.py", line 58, in close
  File "/usr/lib/python3.5/asyncio/unix_events.py", line 139, in remove_signal_handler
  File "/usr/lib/python3.5/signal.py", line 47, in signal
TypeError: signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object

我已经安装了pyshark。你知道是什么导致了这个问题吗？

我在 ubuntu 服务器 16.04 上运行它

Answer 1

它与python问题有关:
https://bugs.python.org/issue26133

https://bugs.python.org/issue23548

https://bugs.python.org/issue28628?@ok_message=file%2045378%20created%0Amsg%20280182%20created%0Aissue%2028628%20created&@template=item

另见:
Trigger catkin build process from within python