python 获取subprocess进程执行后返回值

test.py

#coding=utf-
import subprocess
compilePopen = subprocess.Popen('gcc haha',shell=True,stderr=subprocess.PIPE)
compilePopen.wait()
print('the status code is:',compilePopen.returncode)
with open('log','w') as object:
    object.write(compilePopen.stderr.read())

输出：

('the status code is:', )

参考：

https://blog.csdn.net/qq_31331027/article/details/80518348