使用子进程管道和stderr作为一个命令

Question

Basically, I am trying to run the command (in linux)

chrome http://www.google.com | cleanup.py 

and trying to log stderr to a file.

with open("/tmp/chrome-logs.txt", 'a') as tempf:
        run_pipe = subprocess.Popen( ["-c", "cleanup.py"] , stdin=subprocess.PIPE, stderr=tempf, shell=True)
        run_pipe.communicate("chrome","http://www.google.com")

How do I get this to work?

I could however use subprocess.call to execute, but is that the best way?

Answer 1

Try

stderr=open(<file name>', 'w')

And then you do not need communicate , you may also just use call instead of Popen