execute commands and return output

[Fredrik Lundh]

"billiejoex" wrote:

> Hi all. I'm searching for a portable (working on *nix and win32) function that executes a system command and encapsulate its 
> output into a string.
> Searching for the web I found this:
>
> os.popen('command').read()
>
> It is perfect but when che command return an error the funciotn returns an empy string.
> Does it is possible to return stdout and stderr too?

see the variations popen2, popen3 and popen4:

    http://docs.python.org/lib/os-newstreams.html

or use the subprocess module:

    http://docs.python.org/lib/module-subprocess.html

</F>