Redirect os.system output

[jas]

doesn't sound to encouraging :)

How about something with os.popen?

in = os.popen("cmd", "w")
in.write("hostname")

I tried this, and I get "IOError: [Errno 22] Invalid Argument"

I am not sure why this isnt working.

Steve Holden wrote:
> jas wrote:
> > Ok, I tried this...
> >
> > C:\>python
> > Python 2.4.1 (#65, Mar 30 2005, 09:13:57) [MSC v.1310 32 bit (Intel)]
> > on win32
> > Type "help", "copyright", "credits" or "license" for more information.
> >
> >>>>import subprocess as sp
> >>>>p = sp.Popen("cmd", stdout=sp.PIPE)
> >>>>
> >>>>result = p.communicate("ipconfig")
> >
> > 'result' is not recognized as an internal or external command,
> > operable program or batch file.
> >
> >
> >
> > basically I was opening to send the "ipconfig" command to cmd.exe and
> > store the result in the "result" variable.  But you can see there was
> > an error with result.
> >
> It looks to me like the line you thought you were typing at the Python
> command interpreter actually got snagged by the command processor you
> just ran, which presumably is taking its input from the console just
> like Python is.
>
> > Ideas?
> >
> Haven't used subprocess much yet, but I will just mention that this kind
> of thing always looks easy in principle and turns out to be surprisingly
> gnarly and difficult in practice.
>
> I'm not suggesting you shouldn't continue, but you are going to learn a
> *lot* as you proceed. Good luck.
>
> regards
>   Steve
> [...]
> --
> Steve Holden       +44 150 684 7255  +1 800 494 3119
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