On Fri, Nov 15, 2013 at 7:28 PM, David Cournapeau <cournape@gmail.com> wrote:
>
> On Fri, Nov 15, 2013 at 6:21 PM, Charles R Harris <charlesr.harris@gmail.com> wrote:

>> Sure, give it a shot. Looks like subprocess.Popen was intended to replace os.system in any case.
>
> Except that output is not 'real time' with straight Popen, and doing so reliably on every platform (cough - windows - cough) is not completely trivial. You also have to handle buffered output, etc... That code is very fragile, so this would be quite a lot of testing to change, and I am not sure it worths it.

It doesn't have to be "real time". Just use .communicate() and print out the stdout and stderr to their appropriate streams after the subprocess finishes.

--
Robert Kern