os.system() or os.execv() w/stdout redirect and PID tracking

[Rob Hooft]

There are two other modules that can help here:

  - subproc.py (available from ftp.python.org)

  - task.py (available from http://starship.python.net/crew/hooft/ )

Subproc is a way to control a sub-process including its I/O streams
(i.e. you can send commands to its input, and read its output)

Task is a way to run an independent sub-process, being able to wait
for it and/or to kill it on the fly (it can redirect stdin/out as
well).

Rob.
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