[Numpy-discussion] Silencing NumPy output

[Frédéric Bastien]

I didn't forgot this, but I got side tracked. Here is the Theano code
I would like to try to use to replace os.system:

https://github.com/Theano/Theano/blob/master/theano/misc/windows.py

But I won't be able to try this before next week.

Fred

On Fri, Nov 15, 2013 at 5:49 PM, David Cournapeau <cournape at gmail.com> wrote:
>
>
>
> On Fri, Nov 15, 2013 at 7:41 PM, Robert Kern <robert.kern at gmail.com> wrote:
>>
>> On Fri, Nov 15, 2013 at 7:28 PM, David Cournapeau <cournape at gmail.com>
>> wrote:
>> >
>> > On Fri, Nov 15, 2013 at 6:21 PM, Charles R Harris
>> > <charlesr.harris at 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.
>
>
> Indeed, it does not have to be, but that's useful for debugging compilation
> issues (not so much for numpy itself, but for some packages which have files
> that takes a very long time to build, like scipy.sparsetools or bottleneck).
>
> That's a minor point compared to the potential issues when building on
> windows, though.
>
> David
>
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