Correctly reading stdout/stderr from subprocess

[Maric Michaud]

Le Mercredi 14 Juin 2006 13:14, Maric Michaud a écrit :
> or use a
> threaded version
here it is.
I did it just to validate my point and because i don't use threads very often 
in python, some exercises can't hurt :)

def run(command):

   import subprocess

   run = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, 
stderr=subprocess.PIPE)

   # Wait for the process to return
   import thread, threading
   out, err = [], []
   out_ended, err_ended = threading.Event(), threading.Event()

   def getOutput(output, lines, ended_event) :
       for i in output.readlines() : lines.append(i.rstrip('\n'))
       ended_event.set()

   out_thread = thread.start_new_thread(getOutput, (run.stdout, out, 
out_ended))
   err_thread = thread.start_new_thread(getOutput, (run.stderr, err, 
err_ended))

   out_ended.wait()
   err_ended.wait()

   returncode = run.wait()

   return returncode, out, err


> (much more complicated). 
isn't it.

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Maric Michaud
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