xterm python subprocess -

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if using subprocess execute xterm on linux, in turn executes other process, seems python (2.6.5) never recognize process (xterm) has completed execution.

consider following code:

import subprocess import shlex import time  proc = subprocess.popen(shlex.split('xterm -iconic -title "foo_bar" -e sleep 5')) while true:     if proc.poll():         print 'process completed'     time.sleep(0.1)

this loop infinitely until terminate python interpreter. i'm guessing caused oddity xterm, , not direct cause of python subprocess module, maybe there other smart people out there shed light on situation.

note: calling proc.communicate() in fact return when xterm completes, reason poll method not work.

this program doesn't distinguish between proc.poll() returning none (meaning process still running) , proc.poll() returning 0 (meaning process terminated exit value of zero, conventionally indicating successful completion). change line:

if proc.poll():

to this:

if proc.poll() not none:

and see if helps.


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