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Old 11-28-2005, 12:27 PM   #1
Registered: Apr 2003
Location: boston
Distribution: ubuntu debian redhat fedora
Posts: 108

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best practices for subprocs & pipes in python

could some who keeps more up to date than i tell me what the current preferred way of running a sub process is in python?

should i be using os.popen, popen2, subprocess.Popen, etc?

and a similar question,

is it possible to create a pipe to just a shell, keeping it open for later commands?

i was trying to create a single object (e.g. shell) that i could read and write to, like a shell command line, something lie this

    shell.write('command -to run')
    output = shell.readlines()
    print 'this went wrong', shell.stderr
i tried this a few ways, and never could get all the pipes working. i either get file errors or it loops indefintely (atleast until i hit ctrl+c) while reading.


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