reading shell output in parallel
rnichol_rrc at yahoo.com
Sat Aug 14 07:58:09 CEST 2004
> I'm pretty new to python. I am trying to write a simple application
> that can read the stdout output from a command in linux. I've tried
> using x = commands.getstatusoutput() but this only gives back the
> output in x after finished executing. I would like to read the
> contents as it is being shown on the screen and then send parts of
> this info over a simple client/server setup. I have the client/server
> part set up already.
> Can anyone suggest a simple way to do this?
> Thanks for your help, I appreciate it.
One last thought before my zzzz. For you, you would probably want
cmd_stream = popen2.Popen3(cmd, 1)
while (cmd_stream.poll() == 1):
for line in cmd_stream.childerr.readlines():
for line in cmd_stream.childerr.read_lines():
#clean up remaining lines not process already
To do it in parallel. I'd be interested to know if the above will
actually work ;) At any rate it'll get you started.
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