Re: nosepipe error

Path	csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From	Dan Stromberg <drsalists@gmail.com>
Newsgroups	comp.lang.python
Subject	Re: nosepipe error
Date	Tue, 23 Feb 2016 10:11:43 -0800
Lines	33
Message-ID	<mailman.77.1456251112.20994.python-list@python.org> (permalink)
References	<CAGGBd_rFDSg4QpGc34vZ+8ACbfSwhrJ+iLDSAXhCvhqrAW-arQ@mail.gmail.com> <CAPTjJmp=bCtM1ZUmoy2V48GrdAHtAoZd=JZNoHcJC85JuDKDmg@mail.gmail.com>
Mime-Version	1.0
Content-Type	text/plain; charset=UTF-8
X-Trace	news.uni-berlin.de yVd9/Z/8K3qQELAxZYCGEg3bQO1whVg25hzMfbqwd/sQ==
Return-Path	<drsalists@gmail.com>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.000
X-Spam-Evidence	'H': 1.00; 'S': 0.00; 'aggregate': 0.07; 'cc:addr :python-list': 0.09; 'chunks': 0.09; 'ignoring': 0.09; 'stdout': 0.09; 'sys.stderr': 0.09; 'unhandled': 0.09; 'thread': 0.10; 'subject:error': 0.11; 'exception': 0.13; 'output': 0.13; 'wed,': 0.15; '2016': 0.16; '23,': 0.16; '24,': 0.16; 'cascading': 0.16; 'cc:name:python list': 0.16; 'exceptions.': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'sees': 0.16; 'socketpair': 0.16; 'wrote:': 0.16; 'tests': 0.18; 'cc:2**0': 0.20; 'cc:addr:python.org': 0.20; 'received:209.85.214.174': 0.22; 'am,': 0.23; 'feb': 0.23; 'split': 0.23; 'header:In-Reply-To:1': 0.24; 'chris': 0.26; 'least': 0.27; 'message-id:@mail.gmail.com': 0.27; 'looks': 0.29; 'attempting': 0.29; 'dan': 0.29; 'far,': 0.29; 'socket,': 0.29; 'code:': 0.29; 'there.': 0.30; "i'm": 0.30; 'agreed': 0.31; 'machine.': 0.33; 'tue,': 0.34; 'received:google.com': 0.35; 'could': 0.35; 'replace': 0.35; 'but': 0.36; 'received:209.85': 0.36; 'beginning': 0.36; 'subject:: ': 0.37; 'being': 0.37; 'missing': 0.37; 'received:209': 0.38; 'sure': 0.39; 'received:209.85.214': 0.39; 'where': 0.40; 'skip:u 10': 0.61; 'eye': 0.61; 'great': 0.63; '>>>>>': 0.66; 'levels': 0.70; 'seeing,': 0.84
DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=I+AmnO6WPvB4psSgd7f0W7G/tma/fNdBwSBoDIcddcs=; b=aYIgOevNCqERiVEY4b385N5+VZWtQlxylaPJtMP9eALtwbLT3B6oTOgnpyi3lvL+8y wmTFYWfv8Vyb9W3KqUxsPPgA52AkpZjRzkRFEWwlAlbkXKCJS+YH/9yOsFAeDHRsDqEV +oJvbknt2sE93/KIOblhd9ybxEGM571WZnNmooQv3PfNavaA+rrj2lnqc4t1PQxnvjI6 EXOymajSIiDYxaTS91L+44Fx/HzmOboLyiQ414DMSZSq87y0QPJVUaFuK9oA412LE8V+ B9XG6qSZctKood/uAlKJHNLyDQYkGj+/NTko5e+PNaBKS7TBqpmv75QLPq07VKrebnI5 VNdA==
X-Google-DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=I+AmnO6WPvB4psSgd7f0W7G/tma/fNdBwSBoDIcddcs=; b=jqGtEVwpxm6rMlFcbyQZIVGNm1D4+nF3Sl4LUwRwy1pMDYZn7703oF7NOH+BP9tF/D yYOSUZeJnZQblOtAirigQjSYPxFJbXGd9IiqLP/4Vo2hlFu3ziV+gTR6wx8FuEWjjz8e q2Zoe6twgGr/UDZN2NCaik7YIclRuJ8gYtvkMRhYh7dknz+8A8ZIpPAdp9eTgKtjKRB6 kX7EMzXs8iDPuIclOYPuXJ07ONi1AuJJikVCkgV5mWo4ffkQ3Ghc6lh6CEjgP6Gn98a7 B1mcM6AZiLXW+kP6dSZerlGfTmRaO6BhwL3ajAj4FVUyBbytnkb6VrEpyol6Z9ymndVC eVMg==
X-Gm-Message-State	AG10YOQvZXeCbWycgTH+3biivX6Dot7fr7BF1Qz04NIJSuY62R92E2pflkqRmG1erybi+tx5nbZhse1ApFFIxQ==
X-Received	by 10.182.68.104 with SMTP id v8mr28373862obt.64.1456251103786; Tue, 23 Feb 2016 10:11:43 -0800 (PST)
In-Reply-To	<CAPTjJmp=bCtM1ZUmoy2V48GrdAHtAoZd=JZNoHcJC85JuDKDmg@mail.gmail.com>
X-BeenThere	python-list@python.org
X-Mailman-Version	2.1.21rc2
Precedence	list
List-Id	General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe	<https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive	<http://mail.python.org/pipermail/python-list/>
List-Post	<mailto:python-list@python.org>
List-Help	<mailto:python-list-request@python.org?subject=help>
List-Subscribe	<https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Xref	csiph.com comp.lang.python:103412

Show key headers only | View raw

On Tue, Feb 23, 2016 at 9:43 AM, Chris Angelico <rosuav@gmail.com> wrote:
> On Wed, Feb 24, 2016 at 4:36 AM, Dan Stromberg <drsalists@gmail.com> wrote:
>> Message: Unhandled exception in thread started by
>> sys.excepthook is missing
>> lost sys.stderr
>>
>> That 1433299041 looks like ASCII:
>>>>> hex(1433299041)
>> '0x556e6861'
>>>>> chr(0x55) + chr(0x6e) + chr(0x68) + chr(0x61)
>> 'Unha'
>>
>> ...but I'm not sure where to go with that from there.
>
> My eye sees those characters as being the beginning of "Unhandled
> exception in thread". You could be dealing with multiple levels of
> cascading exceptions.

Agreed - at least "Unhandled exception".

I'm seeing, in the nosepipe code:
        # we use stdout for IPC, so block all other output
        self._stream = sys.__stdout__

I'm not sure using stdout/stdin for IPC is a great thing; a lot of
tests write to stdout or stderr, whether intentionally or
unintentionally.

I'm attempting to replace the use of stdout/stdin with os.pipe(), but
so far I'm not having much luck.  I get three write()'s, and then a
hang.  So far, I'm ignoring the fact that os.read() and os.write()
might split or aggregate chunks over a socket, since this is a
socketpair communicating on the same machine.

Back to comp.lang.python | Previous | Next | Find similar | Unroll thread

Thread

Re: nosepipe error Dan Stromberg <drsalists@gmail.com> - 2016-02-23 10:11 -0800

csiph-web