Mailman 3 August 2012 - Python-Dev

Python 2.7: only Visual Studio 2008?
by Luc Bourhis Sept. 7, 2012

Sept. 7, 2012

Greetings, it is my understanding that the patches floating around the net to support Visual Studio 2010 to compile the Python core and for distutils will never be accepted and therefore that the 2.7 line is stuck to VS 2008 for the remaining of its life. Could you please confirm that? Best wishes, Luc

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Re: [Python-Dev] benchmarks: Pathlib works under Python 3.
by Antoine Pitrou Aug. 31, 2012

Aug. 31, 2012

On Fri, 31 Aug 2012 17:52:38 +0200 (CEST) brett.cannon <python-checkins(a)python.org> wrote: > http://hg.python.org/benchmarks/rev/873baf08045e > changeset: 162:873baf08045e > user: Brett Cannon <brett(a)python.org> > date: Fri Aug 31 11:52:30 2012 -0400 > summary: > Pathlib works under Python 3. ... but therefore you shouldn't run it under 2to3 (which may pessimize the code). Benchmarks with a 3.x-compatible code base are listed under the "2n3" … [View More]

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Summary of Python tracker Issues
by Python tracker Aug. 31, 2012

Aug. 31, 2012

ACTIVITY SUMMARY (2012-08-24 - 2012-08-31) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 3653 (+13) closed 23955 (+41) total 27608 (+54) Open issues with patches: 1621 Issues opened (37) ================== #15780: IDLE (windows) with PYTHONPATH and multiple python versions http://bugs.python.org/issue15780 opened by Jimbofbx #15782: Compile … [View More]

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why is _PyBytes_Join not public but PyUnicode_Join is?
by Gregory P. Smith Aug. 31, 2012

Aug. 31, 2012

We have use for _PyBytes_Join in an extension module but technically it isn't a public Python C API... anyone know why? PyUnicode_Join is. Looking up the bytes 'join' method and using the C API to call that method object with proper parameters seems like overkill in the case where we're not dealing with user supplied byte strings at all. -gps

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Problem with _PyTrash_destroy_chain ?
by Manu Aug. 30, 2012

Aug. 30, 2012

Hi, I am currently hitting http://bugs.python.org/issue13992. I have a scenario that reproduces the bug after 1 to 2 hours (intensive sqlalchemy and threading). I get the same stack trace as described in the bug. After spending quite a bit of time trying to understand what could go wrong in the C extensions I use, and not finding anything interesting, I decided to try to find the problem with gdb. The stacktrace I have seems to mean that we are trying to double free something in the … [View More]

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hg.python.org should default to defaut, not 2.7
by Terry Reedy Aug. 30, 2012

Aug. 30, 2012

If one goes to http://hg.python.org/cpython/ and clicks 'browse', it defaults to 2.7, not to default (now 3.3). Moreover, there is no indication that it is defaulting to an old branch rather than current default, as one might reasonably expect. I found this very confusing when I was trying to get a link for a python-list post and the code did not look right. When one clicks 'branches', default is listed under 2.7, instead of on top, where it should be. I hope someone can fix both these … [View More]

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Py_buffer.obj documentation
by Alexander Belopolsky Aug. 30, 2012

Aug. 30, 2012

I am trying to reconcile this section in 3.3 documentation: """ void *obj A new reference to the exporting object. The reference is owned by the consumer and automatically decremented and set to NULL by PyBuffer_Release(). The field is the equivalent of the return value of any standard C-API function. As a special case, for temporary buffers that are wrapped by PyMemoryView_FromBuffer() or PyBuffer_FillInfo() this field is NULL. In general, exporting objects MUST NOT use this scheme. """ -- … [View More]

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Re: [Python-Dev] [Python-checkins] cpython (merge 3.2 -> default): merge 3.2 (#15801)
by Petri Lehtinen Aug. 29, 2012

Aug. 29, 2012

Hi, benjamin.peterson wrote: > http://hg.python.org/cpython/rev/263d09ce3e9e > changeset: 78794:263d09ce3e9e > parent: 78790:454dceb5fd56 > parent: 78793:4d431e719646 > user: Benjamin Peterson <benjamin(a)python.org> > date: Tue Aug 28 18:01:45 2012 -0400 > summary: > merge 3.2 (#15801) > > files: > Lib/test/string_tests.py | 3 +++ > Misc/NEWS | 3 +++ > Objects/unicodeobject.c | 3 +-- > 3 … [View More]

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Copyediting PEPs
by Chris Angelico Aug. 29, 2012

Aug. 29, 2012

What's the procedure for making trivial edits to a PEP? I was (re)reading PEP 393 and found a couple of typos (PyCompactObject s/be PyCompactUnicodeObject and "differs form length" s/be "from"). Can I edit them directly in the web site's SVN repo, or should a patch be submitted? Apologies for the perhaps clueless question! ChrisA

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Re: [Python-Dev] [Python-checkins] cpython: Issue #15794: Relax a test case due to the deadlock detection's
by Brett Cannon Aug. 28, 2012

Aug. 28, 2012

Should there be a Misc/NEWS entry since we are in rc mode? On Tue, Aug 28, 2012 at 2:13 PM, antoine.pitrou <python-checkins(a)python.org>wrote: > http://hg.python.org/cpython/rev/454dceb5fd56 > changeset: 78790:454dceb5fd56 > parent: 78788:06497bbdf4fe > user: Antoine Pitrou <solipsis(a)pitrou.net> > date: Tue Aug 28 20:10:18 2012 +0200 > summary: > Issue #15794: Relax a test case due to the deadlock detection's > conservativeness. &… [View More]gt; > files: > Lib/test/test_importlib/test_locks.py | 22 ++++++++++++-- > 1 files changed, 18 insertions(+), 4 deletions(-) > > > diff --git a/Lib/test/test_importlib/test_locks.py > b/Lib/test/test_importlib/test_locks.py > --- a/Lib/test/test_importlib/test_locks.py > +++ b/Lib/test/test_importlib/test_locks.py > @@ -1,4 +1,5 @@ > from importlib import _bootstrap > +import sys > import time > import unittest > import weakref > @@ -41,6 +42,17 @@ > @unittest.skipUnless(threading, "threads needed for this test") > class DeadlockAvoidanceTests(unittest.TestCase): > > + def setUp(self): > + try: > + self.old_switchinterval = sys.getswitchinterval() > + sys.setswitchinterval(0.000001) > + except AttributeError: > + self.old_switchinterval = None > + > + def tearDown(self): > + if self.old_switchinterval is not None: > + sys.setswitchinterval(self.old_switchinterval) > + > def run_deadlock_avoidance_test(self, create_deadlock): > NLOCKS = 10 > locks = [LockType(str(i)) for i in range(NLOCKS)] > @@ -75,10 +87,12 @@ > > def test_deadlock(self): > results = self.run_deadlock_avoidance_test(True) > - # One of the threads detected a potential deadlock on its second > - # acquire() call. > - self.assertEqual(results.count((True, False)), 1) > - self.assertEqual(results.count((True, True)), len(results) - 1) > + # At least one of the threads detected a potential deadlock on its > + # second acquire() call. It may be several of them, because the > + # deadlock avoidance mechanism is conservative. > + nb_deadlocks = results.count((True, False)) > + self.assertGreaterEqual(nb_deadlocks, 1) > + self.assertEqual(results.count((True, True)), len(results) - > nb_deadlocks) > > def test_no_deadlock(self): > results = self.run_deadlock_avoidance_test(False) > > -- > Repository URL: http://hg.python.org/cpython > > _______________________________________________ > Python-checkins mailing list > Python-checkins(a)python.org > http://mail.python.org/mailman/listinfo/python-checkins > > [View Less]

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