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RE: Popen and reading stdout in windows

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  RE: Popen and reading stdout in windows "Joseph L. Casale" <jcasale@activenetwerx.com> - 2013-06-11 01:50 +0000
    Re: Popen and reading stdout in windows Pete Forman <petef4+usenet@gmail.com> - 2013-06-11 08:18 +0100
      Re: Popen and reading stdout in windows Chris Rebert <clp2@rebertia.com> - 2013-06-11 00:26 -0700
    RE: Popen and reading stdout in windows Nobody <nobody@nowhere.com> - 2013-06-11 10:54 +0100

#47626 — RE: Popen and reading stdout in windows

> You leave out an awful amount of detail.  I have no idea what ST is, so
> I'll have to guess your real problem.

Ugh, sorry guys its been one of those days, the post was rather useless...

I am using Popen to run the exe with communicate() and I have sent stdout to PIPE
without luck. Just not sure what is the proper way to iterate over the stdout as it eventually
makes its way from the buffer.

Thanks!
jlc

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#47644

"Joseph L. Casale" <jcasale@activenetwerx.com> writes:

>> You leave out an awful amount of detail. I have no idea what ST is,
>> so I'll have to guess your real problem.
>
> Ugh, sorry guys its been one of those days, the post was rather
> useless...
>
> I am using Popen to run the exe with communicate() and I have sent
> stdout to PIPE without luck. Just not sure what is the proper way to
> iterate over the stdout as it eventually makes its way from the
> buffer.

You could try Sarge which is a wrapper for subprocess providing command
pipeline functionality.

http://sarge.readthedocs.org/

-- 
Pete Forman

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#47648

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On Jun 11, 2013 12:21 AM, "Pete Forman" <petef4+usenet@gmail.com> wrote:
>
> "Joseph L. Casale" <jcasale@activenetwerx.com> writes:
>
> >> You leave out an awful amount of detail. I have no idea what ST is,
> >> so I'll have to guess your real problem.
> >
> > Ugh, sorry guys its been one of those days, the post was rather
> > useless...
> >
> > I am using Popen to run the exe with communicate() and I have sent
> > stdout to PIPE without luck. Just not sure what is the proper way to
> > iterate over the stdout as it eventually makes its way from the
> > buffer.
>
> You could try Sarge which is a wrapper for subprocess providing command
> pipeline functionality.
>
> http://sarge.readthedocs.org/

Or Plumbum: http://plumbum.readthedocs.org

Cheers,
Chris

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#47651

On Tue, 11 Jun 2013 01:50:07 +0000, Joseph L. Casale wrote:

> I am using Popen to run the exe with communicate() and I have sent stdout
> to PIPE without luck. Just not sure what is the proper way to iterate over
> the stdout as it eventually makes its way from the buffer.

The proper way is:

	p = subprocess.Popen(..., stdout=subprocess.PIPE)
	for line in p.stdout:
	    # use 'line'
	p.wait()

If the program uses stdin, matters get more complicated.

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