Rsh and background execution PB

[jean-Baptiste Cazier]

Hi !

I am trying to run a python script in the background executing
regurlary a remote command.
However if I try to run the script in the background, it is suspended
as soon as it starts. But it works fine in the foreground.

Below is a simplified version of the problem
-------------------------------
#!/usr/bin/python

import os
import string

def main():

  print "start rsh"
 # os.system('rsh lcs301 "ls" ')
  try:
    lines = string.split(os.popen('rsh lcs301 "ls|head"
').read(),'\n')
  except :
    print "error"
 
  for i in lines[:-1]:
    print i
  return 0

if __name__ =="__main__":

  main()
---------------------------------

And the command line looks like this:
No problem in foreground:

~/devel/queue $ pb.py
start rsh
41256904005028C06DB9DE8487E42B69C1256C2A0048FE7A_VT367501_C300Z_A2_GM1_0409.pdf
718913.lcs3.ER
718913.lcs3.OU
718937.lcs3.ER
718937.lcs3.OU
AgronomDanisco.doc
C11-markers-f-JB.xls
C11.map
CS-2002-17.ps
CazierNIHBio_JT.2.doc

But in the background:

~/devel/queue $ pb.py &
[1] 24541
~/devel/queue $ start rsh


[1]+  Stopped                 pb.py
~/devel/queue $ fg
pb.py
41256904005028C06DB9DE8487E42B69C1256C2A0048FE7A_VT367501_C300Z_A2_GM1_0409.pdf
718913.lcs3.ER
718913.lcs3.OU
718937.lcs3.ER
718937.lcs3.OU
AgronomDanisco.doc
C11-markers-f-JB.xls
C11.map
CS-2002-17.ps
CazierNIHBio_JT.2.doc



Any solution to the problem ?

Thanks

Kveðja

Jean-Baptiste