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jorma kala wrote:
> I get an error that I don't understand when using the subprocess module
> on Windows.
> I guess I'm missing out something very basic.
> For instance, to execute and capture the output of the ms-dos dir
> command, I tried the following:
>
> from subprocess import *
>
> p1 = Popen(["dir"], stdout=PIPE)
> output = p1.communicate()[0]
>
> But I get a WindowsError : [Error 2] File Not Found

That's because "dir" isn't an executable file in its
own right, merely a subcommand of the command shell.
Do this:

<code>
from subprocess import *

p1 = Popen ("dir", shell=True, stdout=PIPE)
print p1.communicate ()[0]

</code>

TJG