[Tutor] XP & catching execl o/p ?

[Dave S]

On Wednesday 06 December 2006 11:04, Kent Johnson wrote:
> Dave S wrote:
> > Hi all,
> >
> > Struggling with python & XP again. My app needs to know if a certain
> > program is running on my XP box
> >
> > Ideal world - I can get the output of 'tasklist.exe' into a string.
> >
> > I have tried
> >
> > os.execl('....')
> > It throws the output to the terminal + I need the exact path to the
> > executable (a bit of a trial)
> >
> > and
> > os.startfile('...')
> > it throws the output to a different window, but no exact path needed
>
> I'm not sure if this is helpful, but here is a program that uses
> subprocess.Popen() to capture the output of cmd.exe. It makes a text
> file which contains all the command help. By Scott David Daniels, taken
> from
> http://groups.google.com/group/comp.lang.python/msg/9fa3a3c287e8e2a3?hl=en&
>
> import subprocess as subp
>
> p = subp.Popen("cmd.exe /X/D/F:ON", stdin=subp.PIPE,
>               stdout=subp.PIPE, stderr=subp.STDOUT)
> flag = "(@@@@@@}"
> print >>p.stdin, "PROMPT", flag
> print >>p.stdin, "HELP"
> print >>p.stdin, "EXIT"
> text = p.stdout.read()
> p.wait()
> helptext = text[text.index(flag + 'HELP') + len(flag) + 4 :
>                text.index(flag + 'EXIT')]
> words = [line.split(None, 1)[0]
>         for line in helptext.split('\n')
>         if line.strip()]
> commands = [word for word in words if word.isupper()]
>
> dest = open('cmd_help.txt', 'wb')
> p = subp.Popen("cmd.exe /X/D/F:ON", stdin=subp.PIPE,
>               stdout=dest, stderr=subp.STDOUT)
> print >>p.stdin, "PROMPT (@@@@@@@@)"
> print >>p.stdin, "HELP"
> for command in commands:
>    print >>p.stdin, "HELP", command
> print >>p.stdin, "EXIT"
> p.wait()
> dest.close()
>
>
> Kent

The above is usefull, 

I am starting to print out these snippets for reference :). I have got 
subprocess to get the data I am now trying to get rid of the windows terminal 
flashing on my screen.

Cheers

Dave