Unable to redirect the subprocess CMD.exe to txt file. Please help !!!

[random832 at fastmail.us]

On Tue, Sep 3, 2013, at 9:54, Venkatesh wrote:
> Hello comp.lang.python Group,
> 
> I am trying to invoke a subprocess in Python as below 
> 
> import sys
> import time
> import os
> import subprocess
> DETACHED_PROCESS = 0x00000008
> 
> path = r'C:\Windows\System32\cmd.exe /k ping www.google.com -n 4 >>
> temp.txt'
> p = subprocess.Popen("%s"%(path), stdout = subprocess.PIPE, stderr =
> subprocess.STDOUT, creationflags=DETACHED_PROCESS)
> 
> With this code, unable to invoke the subprocess and hence not able to
> store the Ping statistics in the file.
> 
> Any help on this OR any better way of achieving this??

You should use /c, instead of /k. /k creates an interactive prompt.

I think you're being a bit overly complicated though by invoking cmd at
all. What about this?

subprocess.Popen("ping www.google.com -n 4",
stdout=open('temp.txt','a'), ...)