Python错误未使用_posixsubprocess模块

Question

嗨我运行一个带有线程的子进程通过python包装器,当我使用子进程模块时,我得到以下警告.

"没有使用_posixsubprocess模块​​,如果程序使用线程,子进程可靠性可能会受到影响."

这意味着什么剂量？我怎么能摆脱它？

Answer 1

我的解决方案是执行以下操作：

pip uninstall subprocess32
pip install -U subprocess32

最初，当我尝试导入时收到警告matplotlib：

Python 2.7.13 (default, May 16 2017, 12:02:12) 
[GCC 6.2.0 20160901] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
/home/methuselah/.local/lib/python2.7/site-packages/subprocess32.py:472: RuntimeWarning: The _posixsubprocess module is not being used. Child process reliability may suffer if your program uses threads.
  "program uses threads.", RuntimeWarning)
>>>

重新安装后subprocess32，警告消失：

Python 2.7.13 (default, May 16 2017, 12:02:12) 
[GCC 6.2.0 20160901] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>>