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To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Trapping the segfault of a subprocess.Popen
Date: Wed, 06 Apr 2011 23:12:40 -0400
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:2738

On 4/6/2011 7:58 PM, Nobody wrote:
> On Wed, 06 Apr 2011 02:20:22 -0700, Pierre GM wrote:
>
>> I need to run a third-party binary from a python script and retrieve
>> its output (and its error messages). I use something like
>>>>> process = subprocess.Popen(options, stdout=subprocess.PIPE,
>> stderr=subprocess.PIPE)
>>>>> (info_out, info_err) = process.communicate()
>> That works fine, except that the third-party binary in question doesn't
>> behave very nicely and tend to segfaults without returning any error. In
>> that case, `process.communicate` hangs for ever.

I am not sure this will help you now, but....
Victor Stinner has added a new module to Python 3.3 that tries to catch 
segfaults and other fatal signals and produce a traceback before Python 
disappears.

-- 
Terry Jan Reedy