Mailman 3 February 2014 - Python-Dev

PEPs don't redirect on python.org
by Chris Angelico Feb. 19, 2014

Feb. 19, 2014

Apologies if this is misdirected! I notice the switch to the new python.org web site has happened; but now PEPs are simply 404: http://www.python.org/dev/peps/pep-0008/ However, trimming the URL offers a redirect: http://www.python.org/dev/peps/ -> http://legacy.python.org/dev/peps/ from which the content can be found. Can a blanket redirect rule be put in that makes all the PEPs at least go to /dev/peps/ ? ChrisA

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Pickling of Enums
by Serhiy Storchaka Feb. 18, 2014

Feb. 18, 2014

How Enum items should be pickled, by value or by name? I think that Enum will be used to collect system-depending constants, so the value of AddressFamily.AF_UNIX can be 1 on one platform and 2 on other. If pickle enums by value, then pickled AddressFamily.AF_INET on on platform can be unpickled as AddressFamily.AF_UNIX on other platform. This looks weird and contrary to the nature of enums.

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Re: [Python-Dev] [Python-checkins] cpython: Close #20656: Fix select.select() on OpenBSD 64-bit
by Zachary Ware Feb. 18, 2014

Feb. 18, 2014

On Mon, Feb 17, 2014 at 6:36 PM, victor.stinner <python-checkins(a)python.org> wrote: > http://hg.python.org/cpython/rev/79ccf36b0fd0 > changeset: 89239:79ccf36b0fd0 > user: Victor Stinner <victor.stinner(a)gmail.com> > date: Tue Feb 18 01:35:40 2014 +0100 > summary: > Close #20656: Fix select.select() on OpenBSD 64-bit > > files: > Modules/selectmodule.c | 22 ++++++++++++---------- > 1 files changed, 12 insertions(+), 10 deletions(-) This changeset caused a compile warning on 32-bit Windows: ..\Modules\selectmodule.c(238): warning C4244: '=' : conversion from 'time_t' to 'long', possible loss of data [P:\ath\to\cpython\PCbuild\select.vcxproj] > diff --git a/Modules/selectmodule.c b/Modules/selectmodule.c > --- a/Modules/selectmodule.c > +++ b/Modules/selectmodule.c > @@ -212,11 +212,18 @@ > return NULL; > } > else { > -#ifdef MS_WINDOWS > + /* On OpenBSD 5.4, timeval.tv_sec is a long. > + * Example: long is 64-bit, whereas time_t is 32-bit. */ > time_t sec; > - if (_PyTime_ObjectToTimeval(tout, &sec, &tv.tv_usec, > + /* On OS X 64-bit, timeval.tv_usec is an int (and thus still 4 > + bytes as required), but no longer defined by a long. */ > + long usec; > + if (_PyTime_ObjectToTimeval(tout, &sec, &usec, > _PyTime_ROUND_UP) == -1) > return NULL; > +#ifdef MS_WINDOWS > + /* On Windows, timeval.tv_sec is a long (32 bit), > + * whereas time_t can be 64-bit. */ > assert(sizeof(tv.tv_sec) == sizeof(long)); > #if SIZEOF_TIME_T > SIZEOF_LONG > if (sec > LONG_MAX) { > @@ -225,16 +232,11 @@ > return NULL; > } > #endif > - tv.tv_sec = (long)sec; > #else > - /* 64-bit OS X has struct timeval.tv_usec as an int (and thus still 4 > - bytes as required), but no longer defined by a long. */ > - long tv_usec; > - if (_PyTime_ObjectToTimeval(tout, &tv.tv_sec, &tv_usec, > - _PyTime_ROUND_UP) == -1) > - return NULL; > - tv.tv_usec = tv_usec; > + assert(sizeof(tv.tv_sec) >= sizeof(sec)); > #endif > + tv.tv_sec = sec; This is the offending line. I'm not sure how best to fix it, so I'm just pointing it out :) -- Zach

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pootle.python.org is down
by A.M. Kuchling Feb. 17, 2014

Feb. 17, 2014

I came across http://bugs.python.org/issue13663, which is about a pootle.python.org installation. http://pootle.python.org/ currently returns a 500. Are we still using Pootle, or should I just close #13663? (Maybe the installation got broken in the move to OSL and then forgotten?) --amk

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Re: [Python-Dev] cpython: Doc: do not rely on checked-out Sphinx toolchain from svn.python.org anymore
by Ned Deily Feb. 16, 2014

Feb. 16, 2014

In article <3fRhkW2rDjz7LmY(a)mail.python.org>, georg.brandl <python-checkins(a)python.org> wrote: > http://hg.python.org/cpython/rev/eef7899ea7ab > changeset: 89212:eef7899ea7ab > user: Georg Brandl <georg(a)python.org> > date: Sun Feb 16 09:46:36 2014 +0100 > summary: > Doc: do not rely on checked-out Sphinx toolchain from svn.python.org > anymore > > Nowadays it is likely that people will have Sphinx installed, > and if not, they will know how to install it. > > This also simplifies life a lot for distribution packagers, > who typically do not want the doc build process to connect > to external web resources. This checkin breaks the OS X installer builds, see for instance: http://buildbot.python.org/all/builders/bolen-dmg-3.x/builds/513 I've opened Issue20644 to address updating the OS X installer build process and buildbot to deal with this change. I imagine it also affects the Windows installer build. This change should not be cherry-picked into 3.4.x until these issues are addressed. -- Ned Deily, nad(a)acm.org

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Possible major bug with zipimport on Windows in Python 3.3.4
by Paul Moore Feb. 16, 2014

Feb. 16, 2014

Can someone please take a look at http://bugs.python.org/issue20621 for me? It appears that there is a significant problem with zipimport in 3.3.4. It's causing breakage in virtualenv but I've isolated the issue to what I think is Python itself. Basically, until this bug is fixed, virtualenv won't work on Windows with Python 3.3.4, as far as I can tell. Thanks, Paul

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CLA link from bugs.python.org
by Tim Delaney Feb. 16, 2014

Feb. 16, 2014

It appears there's no obvious link from bugs.python.org to the contributor agreement - you need to go via the unintuitive link Foundation -> Contribution Forms (and from what I've read, you're prompted when you add a patch to the tracker). I'd suggest that if the "Contributor Form Received" field is "No" in user details, there be a link to http://www.python.org/psf/contrib/. Tim Delaney

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The desired behaviour for resolve() when the path doesn't exist
by Vajrasky Kok Feb. 16, 2014

Feb. 16, 2014

Dear friends, This is related with ticket 19717: "resolve() fails when the path doesn't exist". Assuming /home/cutecat exists but not /home/cutecat/aa, what is the desired output of Path('/home/cutecat/aa/bb/cc').resolve(strict=False)? Should it be: "/home/cutecat" (the existed path only), "/home/cutecat/aa" (the first non-existed path; my current strategy), or "/home/cutecat/aa/bb/cc" (the default behaviour of os.path.realpath)? Vajrasky

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Using more specific methods in Python unit tests
by Serhiy Storchaka Feb. 16, 2014

Feb. 16, 2014

Many Python tests were written a very long time before the unittest, using simple asserts. Then, when they have been ported to the unittest, asserts were replaced with the assert_ method and then with assertTrue. The unittest has a number of other methods to check for and report failure, from assertEqual, to more specific assertIs, assertIn, assertIsInstance, etc, added in 2.7. New methods provide better reporting in case of failure. I wrote a large patch which modifies the tests to use more specific methods [1]. Because it is too large, it was divided into many smaller patches, and separate issues were opened for them. At the moment the major part of the original patch has already been committed. Many thanks to Ezio for making a review for the majority of the issues. Some changes have been made by other people in unrelated issues. Although Raymond approved a patch for test_bigmem [2], his expressed the insistent recommendation not to do this. So I stop committing new reviewed patches. Terry recommended to discuss this in Python-Dev. What are your thoughts? [1] http://bugs.python.org/issue16510 [2] http://bugs.python.org/issue20547

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Would like to contribute to Core Python Comunity on the Project Idea
by Nitin Agarwal Feb. 15, 2014

Feb. 15, 2014

Hi, Here, its Nitin Agarwal, an open source software developer and enthusiast. Currently, I am pursuing Computer Science and Engineering at International Institute of Information Technology, INDIA. I had an experience working with the open source organisations and development of open source software. You can have a look at my github profile.[1] My first priority programming languages include GNU C/C++ and Python. I have been using these languages for the Coding, Programming challenges, Application development and contributing to open source software. Apart from this, I am also aware of version control systems git/github, SVN, bazaar and other web technologies like Javascript, Jinja templates, HTML, CSS too. I am ambititous person eager to learn other technologies when in need while working. You can have a look at my Wikipedia profile.[2] My interests include Programming Languages, open source software development, networking concepts and system administration tasks. While looking at the Project Ideas proposed by the mentors and developers of the Python Community, I found the Email Projects working to work for support of RFC 6532 in the email package and support of RFC 6531 in the smtplib and/or smtpd. I am willing to work on this project ideas as a prospective student in the upcoming Google Summer of Code 2014. I would like to discuss with the mentors more about the project in detail and would like to start off contributing to the project early enough so as to make a strong proposal for Gsoc 2014. *Nitin Agarwal* [1] https://github.com/NitinAgarwal [2] https://en.wikipedia.org/wiki/User:Nitinagarwal3006 [3] IRC handle : nitinagarwal3006

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