[Tutor] permissions problem using subprocess
washakie at gmail.com
Sun Feb 10 23:41:24 CET 2008
I'm converting a perl script which calls shell scripts which call fortran
routines into a python cgi that calls fortran directly (well, not yet using
f2py), but using subprocess.popen. Here's my code:
"""RUN A BASH CMD"""
import subprocess as sub
p = sub.Popen(['/bin/bash', '-c', cmd],
output = urllib.unquote(p.stdout.read())
The code crashes, and I get this message:
? System Error:
? Permission denied
As output from the FORTRAN a.out program
I know when I do the exact same thing with the shell script called from the
perl script, I have no problems, so there is something strange with
permissions... in both cases they are run as 'nobody'.. the directory is a
temp directory, with permissions set (for debugging) even to 0777.. and
still nothing! Why would python have a problem but not the shell script?
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