Mailman 3 April 2014 - Python-Dev

Re: [Python-Dev] [Python-checkins] cpython (3.4): docs: Document __objclass__. Closes #19281.
by Ethan Furman April 8, 2014

April 8, 2014

Sorry, posted to wrong list the first time. On 04/08/2014 09:33 AM, Ethan Furman wrote: > On 04/08/2014 09:07 AM, yury.selivanov wrote: >> http://hg.python.org/cpython/rev/0973d45197cc > > >> +The :attr:`__objclass__` is interpreted by the :mod:`inspect` module as >> +specifying the class where this object was defined (setting this >> appropriately >> +can assist in runtime introspection of dynamic class attributes). For >> callables, >> +it may indicate that an instance of the given type (or a subclass) is >> expected >> +or required as the first positional argument (for example, CPython >> sets this >> +attribute for unbound methods that are implemented in C). > > This would read better as > > The attribute :attr:`__objclass__` . . . > > -- > ~Ethan~ > > _______________________________________________ > Python-checkins mailing list > Python-checkins(a)python.org > https://mail.python.org/mailman/listinfo/python-checkins

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Re: [Python-Dev] [Python-checkins] cpython (3.4): asyncio: Document Task.cancel() properly.
by Terry Reedy April 7, 2014

April 7, 2014

On 4/7/2014 5:22 AM, victor.stinner wrote: > def cancel(self): > + """Request that a task to cancel itself. For proper English, this should be one of these: "Request that a task cancel itself." "Request a task to cancel itself." I think the first is slightly better. TJR

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Re: [Python-Dev] Python-Dev Digest, Vol 129, Issue 6
by Kells Pablo April 7, 2014

April 7, 2014

HELLO... !thank you for all the cooperation and emails send. i would like that you now stop sending them.. thank you in advance On Fri, Apr 4, 2014 at 4:22 PM, <python-dev-request(a)python.org> wrote: > Send Python-Dev mailing list submissions to > python-dev(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.python.org/mailman/listinfo/python-dev > or, via email, send a message with subject or body 'help' to > python-dev-request(a)python.org > > You can reach the person managing the list at > python-dev-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Python-Dev digest..." > > > Today's Topics: > > 1. Re: Pyston: a Python JIT on LLVM (Dag Sverre Seljebotn) > 2. Re: [Python-checkins] cpython: fix #21076: turn signal module > constants into enums (Brett Cannon) > 3. Re: [Python-checkins] cpython: fix #21076: turn signal module > constants into enums (Brett Cannon) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 04 Apr 2014 12:13:53 +0200 > From: Dag Sverre Seljebotn <d.s.seljebotn(a)astro.uio.no> > To: python-dev(a)python.org, kmod(a)dropbox.com > Subject: Re: [Python-Dev] Pyston: a Python JIT on LLVM > Message-ID: <533E85E1.7050001(a)astro.uio.no> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 04/04/2014 12:42 AM, Sturla Molden wrote: > > Kevin Modzelewski <kmod(a)dropbox.com> wrote: > > > >> Since it's the question that I think most people will inevitably (and > >> rightly) ask, why do we think there's a place for Pyston when there's > PyPy > >> and (previously) Unladen Swallow? > > > > Have you seen Numba, the Python JIT that integrates with NumPy? > > > > http://numba.pydata.org > > Specifically, Numba compiles to LLVM too, and tries to be somewhat > general-purpose although it's tuned to numerical code. And their reason > for not using PyPy is the same: C extensions. So while their "market > segment" is different from yours, the technology may not be. > > Dag Sverre > > > > > > It uses LLVM to compile Python bytecode. When I have tried it I tend to > get > > speed comparable to -O2 in C for numerical and algorithmic code. > > > > Here is an example, giving a 150 times speed boost to Python: > > > > > http://stackoverflow.com/questions/21811381/how-to-shove-this-loop-into-num… > > > > > > Sturla > > > > _______________________________________________ > > Python-Dev mailing list > > Python-Dev(a)python.org > > https://mail.python.org/mailman/listinfo/python-dev > > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/d.s.seljebotn%40astro.ui… > > > > > > ------------------------------ > > Message: 2 > Date: Fri, 4 Apr 2014 10:12:23 -0400 > From: Brett Cannon <brett(a)python.org> > To: python-dev <python-dev(a)python.org> > Cc: python-checkins <python-checkins(a)python.org> > Subject: Re: [Python-Dev] [Python-checkins] cpython: fix #21076: turn > signal module constants into enums > Message-ID: > <CAP1=2W7Qif5qhND= > VA+rOnt1+fGFM75Rp-K9aN0T3oGZweXMUA(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > This broke compilation on at least OS X, but I'm willing to bet for all > UNIX-based systems. I have a fix in the works. > > > On Fri, Apr 4, 2014 at 9:34 AM, giampaolo.rodola < > python-checkins(a)python.org > > wrote: > > > http://hg.python.org/cpython/rev/c9239171e429 > > changeset: 90128:c9239171e429 > > user: Giampaolo Rodola' <g.rodola(a)gmail.com> > > date: Fri Apr 04 15:34:17 2014 +0200 > > summary: > > fix #21076: turn signal module constants into enums > > > > files: > > Doc/library/signal.rst | 10 +++ > > Doc/whatsnew/3.5.rst | 5 + > > Lib/signal.py | 84 ++++++++++++++++++++++++++++ > > Lib/test/test_doctest.py | 2 +- > > Lib/test/test_signal.py | 39 +++++++++++- > > Modules/signalmodule.c | 4 +- > > PC/config.c | 2 +- > > 7 files changed, 138 insertions(+), 8 deletions(-) > > > > > > diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst > > --- a/Doc/library/signal.rst > > +++ b/Doc/library/signal.rst > > @@ -65,6 +65,16 @@ > > Module contents > > --------------- > > > > +.. versionchanged:: 3.5 > > + signal (SIG*), handler (:const:`SIG_DFL`, :const:`SIG_IGN`) and > sigmask > > + (:const:`SIG_BLOCK`, :const:`SIG_UNBLOCK`, :const:`SIG_SETMASK`) > > + related constants listed below were turned into > > + :class:`enums <enum.IntEnum>`. > > + :func:`getsignal`, :func:`pthread_sigmask`, :func:`sigpending` and > > + :func:`sigwait` functions return human-readable > > + :class:`enums <enum.IntEnum>`. > > + > > + > > The variables defined in the :mod:`signal` module are: > > > > > > diff --git a/Doc/whatsnew/3.5.rst b/Doc/whatsnew/3.5.rst > > --- a/Doc/whatsnew/3.5.rst > > +++ b/Doc/whatsnew/3.5.rst > > @@ -134,6 +134,11 @@ > > Improved Modules > > ================ > > > > +* Different constants of :mod:`signal` module are now enumeration values > > using > > + the :mod:`enum` module. This allows meaningful names to be printed > > during > > + debugging, instead of integer ?magic numbers?. (contribute by > Giampaolo > > + Rodola' in :issue:`21076`) > > + > > * :class:`xmlrpc.client.ServerProxy` is now a :term:`context manager` > > (contributed by Claudiu Popa in :issue:`20627`). > > > > diff --git a/Lib/signal.py b/Lib/signal.py > > new file mode 100644 > > --- /dev/null > > +++ b/Lib/signal.py > > @@ -0,0 +1,84 @@ > > +import _signal > > +from _signal import * > > +from functools import wraps as _wraps > > +from enum import IntEnum as _IntEnum > > + > > +_globals = globals() > > + > > +Signals = _IntEnum( > > + 'Signals', > > + {name: value for name, value in _globals.items() > > + if name.isupper() > > + and (name.startswith('SIG') and not name.startswith('SIG_')) > > + or name.startswith('CTRL_')}) > > + > > +class Handlers(_IntEnum): > > + SIG_DFL = _signal.SIG_DFL > > + SIG_IGN = _signal.SIG_IGN > > + > > +_globals.update(Signals.__members__) > > +_globals.update(Handlers.__members__) > > + > > +if 'pthread_sigmask' in _globals: > > + class Sigmasks(_IntEnum): > > + SIG_BLOCK = _signal.SIG_BLOCK > > + SIG_UNBLOCK = _signal.SIG_UNBLOCK > > + SIG_SETMASK = _signal.SIG_SETMASK > > + > > + _globals.update(Sigmasks.__members__) > > + > > + > > +def _int_to_enum(value, enum_klass): > > + """Convert a numeric value to an IntEnum member. > > + If it's not a known member, return the numeric value itself. > > + """ > > + try: > > + return enum_klass(value) > > + except ValueError: > > + return value > > + > > + > > +def _enum_to_int(value): > > + """Convert an IntEnum member to a numeric value. > > + If it's not a IntEnum member return the value itself. > > + """ > > + try: > > + return int(value) > > + except (ValueError, TypeError): > > + return value > > + > > + > > +(a)_wraps(_signal.signal) > > +def signal(signalnum, handler): > > + handler = _signal.signal(_enum_to_int(signalnum), > > _enum_to_int(handler)) > > + return _int_to_enum(handler, Handlers) > > + > > + > > +(a)_wraps(_signal.getsignal) > > +def getsignal(signalnum): > > + handler = _signal.getsignal(signalnum) > > + return _int_to_enum(handler, Handlers) > > + > > + > > +if 'pthread_sigmask' in _globals: > > + @_wraps(_signal.pthread_sigmask) > > + def pthread_sigmask(how, mask): > > + sigs_set = _signal.pthread_sigmask(how, mask) > > + return set(_int_to_enum(x, Signals) for x in sigs_set) > > + pthread_sigmask.__doc__ = _signal.pthread_sigmask.__doc__ > > + > > + > > +(a)_wraps(_signal.sigpending) > > +def sigpending(): > > + sigs = _signal.sigpending() > > + return set(_int_to_enum(x, Signals) for x in sigs) > > + > > + > > +if 'sigwait' in _globals: > > + @_wraps(_signal.sigwait) > > + def sigwait(sigset): > > + retsig = _signal.sigwait(sigset) > > + return _int_to_enum(retsig, Signals) > > + sigwait.__doc__ = _signal.sigwait > > + > > +del _globals, _wraps > > diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py > > --- a/Lib/test/test_doctest.py > > +++ b/Lib/test/test_doctest.py > > @@ -2897,7 +2897,7 @@ > > > > def test_main(): > > # Check the doctest cases in doctest itself: > > - support.run_doctest(doctest, verbosity=True) > > + ret = support.run_doctest(doctest, verbosity=True) > > # Check the doctest cases defined here: > > from test import test_doctest > > support.run_doctest(test_doctest, verbosity=True) > > diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py > > --- a/Lib/test/test_signal.py > > +++ b/Lib/test/test_signal.py > > @@ -1,6 +1,7 @@ > > import unittest > > from test import support > > from contextlib import closing > > +import enum > > import gc > > import pickle > > import select > > @@ -39,6 +40,22 @@ > > return None > > > > > > +class GenericTests(unittest.TestCase): > > + > > + def test_enums(self): > > + for name in dir(signal): > > + sig = getattr(signal, name) > > + if name in {'SIG_DFL', 'SIG_IGN'}: > > + self.assertIsInstance(sig, signal.Handlers) > > + elif name in {'SIG_BLOCK', 'SIG_UNBLOCK', 'SIG_SETMASK'}: > > + self.assertIsInstance(sig, signal.Sigmasks) > > + elif name.startswith('SIG') and not name.startswith('SIG_'): > > + self.assertIsInstance(sig, signal.Signals) > > + elif name.startswith('CTRL_'): > > + self.assertIsInstance(sig, signal.Signals) > > + self.assertEqual(sys.platform, "win32") > > + > > + > > @unittest.skipIf(sys.platform == "win32", "Not valid on Windows") > > class InterProcessSignalTests(unittest.TestCase): > > MAX_DURATION = 20 # Entire test should last at most 20 sec. > > @@ -195,6 +212,7 @@ > > > > def test_getsignal(self): > > hup = signal.signal(signal.SIGHUP, self.trivial_signal_handler) > > + self.assertIsInstance(hup, signal.Handlers) > > self.assertEqual(signal.getsignal(signal.SIGHUP), > > self.trivial_signal_handler) > > signal.signal(signal.SIGHUP, hup) > > @@ -271,7 +289,7 @@ > > > > os.close(read) > > os.close(write) > > - """.format(signals, ordered, test_body) > > + """.format(tuple(map(int, signals)), ordered, test_body) > > > > assert_python_ok('-c', code) > > > > @@ -604,6 +622,8 @@ > > signal.pthread_sigmask(signal.SIG_BLOCK, [signum]) > > os.kill(os.getpid(), signum) > > pending = signal.sigpending() > > + for sig in pending: > > + assert isinstance(sig, signal.Signals), repr(pending) > > if pending != {signum}: > > raise Exception('%s != {%s}' % (pending, signum)) > > try: > > @@ -660,6 +680,7 @@ > > code = '''if 1: > > import signal > > import sys > > + from signal import Signals > > > > def handler(signum, frame): > > 1/0 > > @@ -702,6 +723,7 @@ > > def test(signum): > > signal.alarm(1) > > received = signal.sigwait([signum]) > > + assert isinstance(received, signal.Signals), received > > if received != signum: > > raise Exception('received %s, not %s' % (received, > > signum)) > > ''') > > @@ -842,8 +864,14 @@ > > def kill(signum): > > os.kill(os.getpid(), signum) > > > > + def check_mask(mask): > > + for sig in mask: > > + assert isinstance(sig, signal.Signals), repr(sig) > > + > > def read_sigmask(): > > - return signal.pthread_sigmask(signal.SIG_BLOCK, []) > > + sigmask = signal.pthread_sigmask(signal.SIG_BLOCK, []) > > + check_mask(sigmask) > > + return sigmask > > > > signum = signal.SIGUSR1 > > > > @@ -852,6 +880,7 @@ > > > > # Unblock SIGUSR1 (and copy the old mask) to test our signal > > handler > > old_mask = signal.pthread_sigmask(signal.SIG_UNBLOCK, [signum]) > > + check_mask(old_mask) > > try: > > kill(signum) > > except ZeroDivisionError: > > @@ -861,11 +890,13 @@ > > > > # Block and then raise SIGUSR1. The signal is blocked: the > signal > > # handler is not called, and the signal is now pending > > - signal.pthread_sigmask(signal.SIG_BLOCK, [signum]) > > + mask = signal.pthread_sigmask(signal.SIG_BLOCK, [signum]) > > + check_mask(mask) > > kill(signum) > > > > # Check the new mask > > blocked = read_sigmask() > > + check_mask(blocked) > > if signum not in blocked: > > raise Exception("%s not in %s" % (signum, blocked)) > > if old_mask ^ blocked != {signum}: > > @@ -928,7 +959,7 @@ > > > > def test_main(): > > try: > > - support.run_unittest(PosixTests, InterProcessSignalTests, > > + support.run_unittest(GenericTests, PosixTests, > > InterProcessSignalTests, > > WakeupFDTests, WakeupSignalTests, > > SiginterruptTest, ItimerTest, > > WindowsSignalTests, > > PendingSignalsTests) > > diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c > > --- a/Modules/signalmodule.c > > +++ b/Modules/signalmodule.c > > @@ -967,7 +967,7 @@ > > }; > > > > PyMODINIT_FUNC > > -PyInit_signal(void) > > +PyInit__signal(void) > > { > > PyObject *m, *d, *x; > > int i; > > @@ -1380,7 +1380,7 @@ > > void > > PyOS_InitInterrupts(void) > > { > > - PyObject *m = PyImport_ImportModule("signal"); > > + PyObject *m = PyImport_ImportModule("_signal"); > > if (m) { > > Py_DECREF(m); > > } > > diff --git a/PC/config.c b/PC/config.c > > --- a/PC/config.c > > +++ b/PC/config.c > > @@ -19,7 +19,7 @@ > > extern PyObject* PyInit__md5(void); > > extern PyObject* PyInit_nt(void); > > extern PyObject* PyInit__operator(void); > > -extern PyObject* PyInit_signal(void); > > +extern PyObject* PyInit__signal(void); > > extern PyObject* PyInit__sha1(void); > > extern PyObject* PyInit__sha256(void); > > extern PyObject* PyInit__sha512(void); > > > > -- > > Repository URL: http://hg.python.org/cpython > > > > _______________________________________________ > > Python-checkins mailing list > > Python-checkins(a)python.org > > https://mail.python.org/mailman/listinfo/python-checkins > > > > >

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Re: [Python-Dev] [Python-checkins] cpython (3.3): minor docfix (reported at docs@python.org) trace.py argument is --count not
by Benjamin Peterson April 6, 2014

April 6, 2014

On Sun, Apr 6, 2014, at 11:01, senthil.kumaran wrote: > http://hg.python.org/cpython/rev/b49d990aaa9d > changeset: 90160:b49d990aaa9d > branch: 3.3 > parent: 90130:63e6afd3ff1f > user: Senthil Kumaran <senthil(a)uthcode.com> > date: Sun Apr 06 10:59:47 2014 -0700 > summary: > minor docfix (reported at docs(a)python.org) trace.py argument is --count > not --counts This change is of course not harmful, but remember that 3.3 is in security-fix only mode.

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Pyston: a Python JIT on LLVM
by Kevin Modzelewski April 5, 2014

April 5, 2014

Hi all, I'm excited to announce Pyston, a Python JIT under development at Dropbox, built on top of LLVM. You can read more about it at the introductory blog post<https://tech.dropbox.com/2014/04/introducing-pyston-an-upcoming-jit-based-p…>, or check out the code on github <https://github.com/dropbox/pyston>. Since it's the question that I think most people will inevitably (and rightly) ask, why do we think there's a place for Pyston when there's PyPy and (previously) Unladen Swallow? Compared to PyPy, Pyston makes a number of different technical choices, such as using a method-at-a-time JIT vs PyPy's tracing JIT. The method-at-a-time approach seems to be being validated in the JavaScript world, so there's reason to think there might be room to improve over PyPy, though their extremely impressive performance makes that an admittedly very, very high bar. We also think that extension module support is a first-class issue and have some ideas on how to try to make that fast. As for Unladen Swallow, there are some reasons to think that LLVM has matured greatly in the past few years, particularly in the JIT engine which has been completely replaced. I'm not sure if that's the only part to the story; I'd be interested in talking with any of the people who were involved or knowledgeable about the project. It's definitely a very tall order to try to stand out among the existing implementations, but in time we think we can do it. I'll be at the language summit and PyCon sprints, and hope to see some of you there! kmod

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New absolute __file__ in Python 3.4
by anatoly techtonik April 4, 2014

April 4, 2014

https://docs.python.org/3.4/whatsnew/3.4.html#other-language-changes 1. Is this absolute name with symlinks resolved? 2. Why there is a special case for __main__? (i.e. Special cases aren't special enough to break the rules.) 3. What link should I click in Python reference to read about standard globals like __file__ and this change? https://docs.python.org/3.4/library/index.html something like this in PHP http://www.php.net/manual/en/language.constants.predefined.php -- anatoly t.

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Summary of Python tracker Issues
by Python tracker April 4, 2014

April 4, 2014

ACTIVITY SUMMARY (2014-03-28 - 2014-04-04) 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 4550 (+16) closed 28376 (+52) total 32926 (+68) Open issues with patches: 2093 Issues opened (48) ================== #21087: imp.frozen_init() incorrectly removes module during reload http://bugs.python.org/issue21087 opened by eric.snow #21088: curses addch() argument position reverses in Python3.4.0 http://bugs.python.org/issue21088 opened by masamoto #21090: File read silently stops after EIO I/O error http://bugs.python.org/issue21090 opened by ivank #21091: EmailMessage.is_attachment should be a method http://bugs.python.org/issue21091 opened by brandon-rhodes #21095: EmailMessage should support Header objects http://bugs.python.org/issue21095 opened by brandon-rhodes #21099: Switch applicable importlib tests to use PEP 451 API http://bugs.python.org/issue21099 opened by eric.snow #21101: Extend the PyDict C API to handle cases where the hash value i http://bugs.python.org/issue21101 opened by rhettinger #21103: Encoding str to IDNA with ellipsis decomposes to empty labels http://bugs.python.org/issue21103 opened by chfoo #21106: Updated Mac folder icon http://bugs.python.org/issue21106 opened by viveksjain #21107: Add pgen.vcxproj to allow regenerating grammar files on Window http://bugs.python.org/issue21107 opened by zach.ware #21108: Add examples for importlib in doc http://bugs.python.org/issue21108 opened by sahutd #21109: tarfile: Traversal attack vulnerability http://bugs.python.org/issue21109 opened by Daniel.Garcia #21110: Slowdown and high memory usage when adding a new module in emb http://bugs.python.org/issue21110 opened by MrValdez #21111: PyLong_AsUnsignedLongAndOverflow does not exist http://bugs.python.org/issue21111 opened by h.venev #21112: 3.4 regression: unittest.expectedFailure no longer works on Te http://bugs.python.org/issue21112 opened by William.Schwartz #21114: wsgiref.simple_server doesn't handle multi-line headers correc http://bugs.python.org/issue21114 opened by Alan.Braithwaite #21116: Failure to create multiprocessing shared arrays larger than 50 http://bugs.python.org/issue21116 opened by mboquien #21117: inspect.signature: inaccuracies for partial functions http://bugs.python.org/issue21117 opened by yselivanov #21118: str.translate is absurdly slow in majority of use cases (takes http://bugs.python.org/issue21118 opened by josh.rosenberg #21119: asyncio create_connection resource warning http://bugs.python.org/issue21119 opened by landersson #21120: PyArena type is used in headers from the limited API http://bugs.python.org/issue21120 opened by aponomarenko #21121: -Werror=declaration-after-statement is added even for extensio http://bugs.python.org/issue21121 opened by nilsge #21122: CPython fails to build modules with LLVM LTO on Mac OS X http://bugs.python.org/issue21122 opened by Sjlver #21124: _struct module compilation error under Cygwin 1.7.17 on Python http://bugs.python.org/issue21124 opened by dellair.jie #21126: Integrate doctest.run_docstring_examples() with unittest http://bugs.python.org/issue21126 opened by giampaolo.rodola #21127: Path objects cannot be constructed from str subclasses http://bugs.python.org/issue21127 opened by Antony.Lee #21128: testing stdlib and compatibility with pypy http://bugs.python.org/issue21128 opened by mattip #21130: equivalent functools.partial instances should compare equal http://bugs.python.org/issue21130 opened by theller #21131: test_faulthandler.test_register_chain fails on 64bit ppc/arm w http://bugs.python.org/issue21131 opened by bkabrda #21132: Failure to import win32api http://bugs.python.org/issue21132 opened by woakesd #21133: unittest discover should allow option to run each package sepa http://bugs.python.org/issue21133 opened by the.mulhern #21134: Segfault when stringifying UnicodeEncodeError (or UnicodeDecod http://bugs.python.org/issue21134 opened by Marek.Kowalski #21136: fractions.Fraction.__pow__ does unneeded renormalization http://bugs.python.org/issue21136 opened by Orborde #21137: Better repr for threading.Lock() http://bugs.python.org/issue21137 opened by rhettinger #21138: mimetypes.MimeType UnicodeDecodeError http://bugs.python.org/issue21138 opened by tanbro #21139: Idle: change default reformat width from 70 to 72 http://bugs.python.org/issue21139 opened by terry.reedy #21140: Idle: saving an OutputWindow should default to .txt http://bugs.python.org/issue21140 opened by terry.reedy #21141: Don't mention Perl in Windows build output http://bugs.python.org/issue21141 opened by zach.ware #21142: Daily/weekly ABI scan? http://bugs.python.org/issue21142 opened by ncoghlan #21144: ensurepip "AssertionError: Multiple .dist-info directories" http://bugs.python.org/issue21144 opened by demmeln #21145: Add the @cached_property decorator http://bugs.python.org/issue21145 opened by Omer.Katz #21146: update gzip usage examples in docs http://bugs.python.org/issue21146 opened by wolma #21147: sqlite3 doesn't complain if the request contains a null charac http://bugs.python.org/issue21147 opened by haypo #21148: avoid memset in small tuple creation http://bugs.python.org/issue21148 opened by jtaylor #21150: Add quick links table to argparse docs http://bugs.python.org/issue21150 opened by rhettinger #21151: winreg.SetValueEx causes crash if value = None http://bugs.python.org/issue21151 opened by dmo2118 #21152: Idle: timed autosave for shell (and maybe editor) window http://bugs.python.org/issue21152 opened by terry.reedy #21153: bdist_rpm fails if project contains files with spaces in the n http://bugs.python.org/issue21153 opened by jason.coombs Most recent 15 issues with no replies (15) ========================================== #21152: Idle: timed autosave for shell (and maybe editor) window http://bugs.python.org/issue21152 #21150: Add quick links table to argparse docs http://bugs.python.org/issue21150 #21147: sqlite3 doesn't complain if the request contains a null charac http://bugs.python.org/issue21147 #21144: ensurepip "AssertionError: Multiple .dist-info directories" http://bugs.python.org/issue21144 #21139: Idle: change default reformat width from 70 to 72 http://bugs.python.org/issue21139 #21133: unittest discover should allow option to run each package sepa http://bugs.python.org/issue21133 #21132: Failure to import win32api http://bugs.python.org/issue21132 #21127: Path objects cannot be constructed from str subclasses http://bugs.python.org/issue21127 #21126: Integrate doctest.run_docstring_examples() with unittest http://bugs.python.org/issue21126 #21120: PyArena type is used in headers from the limited API http://bugs.python.org/issue21120 #21119: asyncio create_connection resource warning http://bugs.python.org/issue21119 #21114: wsgiref.simple_server doesn't handle multi-line headers correc http://bugs.python.org/issue21114 #21112: 3.4 regression: unittest.expectedFailure no longer works on Te http://bugs.python.org/issue21112 #21110: Slowdown and high memory usage when adding a new module in emb http://bugs.python.org/issue21110 #21107: Add pgen.vcxproj to allow regenerating grammar files on Window http://bugs.python.org/issue21107 Most recent 15 issues waiting for review (15) ============================================= #21148: avoid memset in small tuple creation http://bugs.python.org/issue21148 #21141: Don't mention Perl in Windows build output http://bugs.python.org/issue21141 #21140: Idle: saving an OutputWindow should default to .txt http://bugs.python.org/issue21140 #21137: Better repr for threading.Lock() http://bugs.python.org/issue21137 #21136: fractions.Fraction.__pow__ does unneeded renormalization http://bugs.python.org/issue21136 #21128: testing stdlib and compatibility with pypy http://bugs.python.org/issue21128 #21126: Integrate doctest.run_docstring_examples() with unittest http://bugs.python.org/issue21126 #21124: _struct module compilation error under Cygwin 1.7.17 on Python http://bugs.python.org/issue21124 #21118: str.translate is absurdly slow in majority of use cases (takes http://bugs.python.org/issue21118 #21117: inspect.signature: inaccuracies for partial functions http://bugs.python.org/issue21117 #21116: Failure to create multiprocessing shared arrays larger than 50 http://bugs.python.org/issue21116 #21114: wsgiref.simple_server doesn't handle multi-line headers correc http://bugs.python.org/issue21114 #21112: 3.4 regression: unittest.expectedFailure no longer works on Te http://bugs.python.org/issue21112 #21109: tarfile: Traversal attack vulnerability http://bugs.python.org/issue21109 #21108: Add examples for importlib in doc http://bugs.python.org/issue21108 Top 10 most discussed issues (10) ================================= #21117: inspect.signature: inaccuracies for partial functions http://bugs.python.org/issue21117 21 msgs #21085: compile error Python3.3 on Cygwin http://bugs.python.org/issue21085 16 msgs #21116: Failure to create multiprocessing shared arrays larger than 50 http://bugs.python.org/issue21116 12 msgs #20904: HAVE_PY_SET_53BIT_PRECISION for m68k http://bugs.python.org/issue20904 11 msgs #17390: display python version on idle title bar http://bugs.python.org/issue17390 8 msgs #21106: Updated Mac folder icon http://bugs.python.org/issue21106 8 msgs #21122: CPython fails to build modules with LLVM LTO on Mac OS X http://bugs.python.org/issue21122 8 msgs #19655: Replace the ASDL parser carried with CPython http://bugs.python.org/issue19655 7 msgs #21028: ElementTree objects should support all the same methods as Ele http://bugs.python.org/issue21028 7 msgs #21076: Turn signal.SIG* constants into enums http://bugs.python.org/issue21076 7 msgs Issues closed (50) ================== #8410: Fix emulated lock to be 'fair' http://bugs.python.org/issue8410 closed by kristjan.jonsson #11704: functools.partial doesn't create bound methods http://bugs.python.org/issue11704 closed by ncoghlan #11824: freeze.py broken due to ABI flags http://bugs.python.org/issue11824 closed by loewis #15044: _dbm not building on Fedora 17 http://bugs.python.org/issue15044 closed by ncoghlan #15067: Clean up the sqlite3 docs http://bugs.python.org/issue15067 closed by python-dev #15331: Codecs docs should explain that the bytes-bytes shorthand alia http://bugs.python.org/issue15331 closed by ncoghlan #16475: Support object instancing and recursion in marshal http://bugs.python.org/issue16475 closed by kristjan.jonsson #16716: Deprecate OSError aliases in the doc http://bugs.python.org/issue16716 closed by asvetlov #17522: Add api PyGILState_Check http://bugs.python.org/issue17522 closed by kristjan.jonsson #17705: Fill Character cannot be \0 http://bugs.python.org/issue17705 closed by skrah #17862: itertools.chunks(iterable, size, fill=None) http://bugs.python.org/issue17862 closed by rhettinger #17969: multiprocessing crash on exit http://bugs.python.org/issue17969 closed by kristjan.jonsson #18652: Add itertools.first_true (return first true item in iterable) http://bugs.python.org/issue18652 closed by rhettinger #19491: Python Crashing When Saving Documents http://bugs.python.org/issue19491 closed by terry.reedy #19501: Buildbot testing of 3.2 broken http://bugs.python.org/issue19501 closed by zach.ware #19505: OrderedDict views don't implement __reversed__ http://bugs.python.org/issue19505 closed by serhiy.storchaka #19640: Dynamically generate the _source attribute of namedtuple to sa http://bugs.python.org/issue19640 closed by rhettinger #19697: Document the possible values for __main__.__spec__ http://bugs.python.org/issue19697 closed by eric.snow #20022: Eliminate the use of the deprecated bundlebuilder.py script in http://bugs.python.org/issue20022 closed by ned.deily #20375: ElementTree: Document handling processing instructions http://bugs.python.org/issue20375 closed by nikratio #20550: Use specific asserts in collections tests http://bugs.python.org/issue20550 closed by rhettinger #20887: stdlib compatibility with pypy, test_zipfile.py http://bugs.python.org/issue20887 closed by benjamin.peterson #20942: _frozen_importlib should not have a __file__ attribute http://bugs.python.org/issue20942 closed by brett.cannon #21014: `1` => `True`; for tutorial docs http://bugs.python.org/issue21014 closed by rhettinger #21029: IDLE mis-coloring "print" http://bugs.python.org/issue21029 closed by rhettinger #21066: The separate download version for the documentation doesn't wo http://bugs.python.org/issue21066 closed by loewis #21073: Py_ReprEnter potentially misbehaves during malformed thread st http://bugs.python.org/issue21073 closed by pitrou #21074: Too aggressive constant folding http://bugs.python.org/issue21074 closed by ncoghlan #21082: os.makedirs(exist_ok=True) is not thread-safe: umask is set te http://bugs.python.org/issue21082 closed by python-dev #21086: Source with "# -*- coding: ASCII -*-" and UNIX EOL (\n) result http://bugs.python.org/issue21086 closed by Arfrever #21089: macro SET_SYS_FROM_STRING_BORROW doesn't get unset http://bugs.python.org/issue21089 closed by python-dev #21092: json serializer implicitly stringifies non-string keys http://bugs.python.org/issue21092 closed by brett.cannon #21093: ctypes test_macholib fails if libz is not installed in /usr/li http://bugs.python.org/issue21093 closed by ned.deily #21094: sqlite3 CheckOpcodeCount fails with AssertionError: 5 not grea http://bugs.python.org/issue21094 closed by benjamin.peterson #21096: Python icon hardcoded http://bugs.python.org/issue21096 closed by ned.deily #21097: Move test_namespace_pkgs into test_importlib. http://bugs.python.org/issue21097 closed by eric.snow #21098: Address remaining PEP 451-related to-do comments. http://bugs.python.org/issue21098 closed by eric.snow #21100: Micro-optimization for tuple comparison http://bugs.python.org/issue21100 closed by rhettinger #21102: 3.4.0 PDF (a4,letter) and EPUB documentation missing http://bugs.python.org/issue21102 closed by benjamin.peterson #21104: Read from file aborted http://bugs.python.org/issue21104 closed by Alex.Grinko #21105: functools.partialmethod example doesn't actually work http://bugs.python.org/issue21105 closed by python-dev #21113: Error usage of class.__bases__ http://bugs.python.org/issue21113 closed by ZealotuS #21115: python.org server change causing failures in test_urllib2net t http://bugs.python.org/issue21115 closed by benjamin.peterson #21123: Compilation error on _struct module on Python 3.4 http://bugs.python.org/issue21123 closed by dellair.jie #21125: traceback.extract_tb says "quadruple" when it means "tuple" http://bugs.python.org/issue21125 closed by rhettinger #21129: Segfault in python interpreter http://bugs.python.org/issue21129 closed by zach.ware #21135: Remove useless _vb_pattern parameter in cgi.valid_boundary http://bugs.python.org/issue21135 closed by python-dev #21143: Copy-paste error in documentation of __builtin__.max http://bugs.python.org/issue21143 closed by rhettinger #21149: logging._removeHandlerRef is not threadsafe during interpreter http://bugs.python.org/issue21149 closed by python-dev #21154: Small fix in 2.7.6 lang ref http://bugs.python.org/issue21154 closed by python-dev

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Re: [Python-Dev] [Python-checkins] cpython: fix #21076: turn signal module constants into enums
by Brett Cannon April 4, 2014

April 4, 2014

This broke compilation on at least OS X, but I'm willing to bet for all UNIX-based systems. I have a fix in the works. On Fri, Apr 4, 2014 at 9:34 AM, giampaolo.rodola <python-checkins(a)python.org > wrote: > http://hg.python.org/cpython/rev/c9239171e429 > changeset: 90128:c9239171e429 > user: Giampaolo Rodola' <g.rodola(a)gmail.com> > date: Fri Apr 04 15:34:17 2014 +0200 > summary: > fix #21076: turn signal module constants into enums > > files: > Doc/library/signal.rst | 10 +++ > Doc/whatsnew/3.5.rst | 5 + > Lib/signal.py | 84 ++++++++++++++++++++++++++++ > Lib/test/test_doctest.py | 2 +- > Lib/test/test_signal.py | 39 +++++++++++- > Modules/signalmodule.c | 4 +- > PC/config.c | 2 +- > 7 files changed, 138 insertions(+), 8 deletions(-) > > > diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst > --- a/Doc/library/signal.rst > +++ b/Doc/library/signal.rst > @@ -65,6 +65,16 @@ > Module contents > --------------- > > +.. versionchanged:: 3.5 > + signal (SIG*), handler (:const:`SIG_DFL`, :const:`SIG_IGN`) and sigmask > + (:const:`SIG_BLOCK`, :const:`SIG_UNBLOCK`, :const:`SIG_SETMASK`) > + related constants listed below were turned into > + :class:`enums <enum.IntEnum>`. > + :func:`getsignal`, :func:`pthread_sigmask`, :func:`sigpending` and > + :func:`sigwait` functions return human-readable > + :class:`enums <enum.IntEnum>`. > + > + > The variables defined in the :mod:`signal` module are: > > > diff --git a/Doc/whatsnew/3.5.rst b/Doc/whatsnew/3.5.rst > --- a/Doc/whatsnew/3.5.rst > +++ b/Doc/whatsnew/3.5.rst > @@ -134,6 +134,11 @@ > Improved Modules > ================ > > +* Different constants of :mod:`signal` module are now enumeration values > using > + the :mod:`enum` module. This allows meaningful names to be printed > during > + debugging, instead of integer “magic numbers”. (contribute by Giampaolo > + Rodola' in :issue:`21076`) > + > * :class:`xmlrpc.client.ServerProxy` is now a :term:`context manager` > (contributed by Claudiu Popa in :issue:`20627`). > > diff --git a/Lib/signal.py b/Lib/signal.py > new file mode 100644 > --- /dev/null > +++ b/Lib/signal.py > @@ -0,0 +1,84 @@ > +import _signal > +from _signal import * > +from functools import wraps as _wraps > +from enum import IntEnum as _IntEnum > + > +_globals = globals() > + > +Signals = _IntEnum( > + 'Signals', > + {name: value for name, value in _globals.items() > + if name.isupper() > + and (name.startswith('SIG') and not name.startswith('SIG_')) > + or name.startswith('CTRL_')}) > + > +class Handlers(_IntEnum): > + SIG_DFL = _signal.SIG_DFL > + SIG_IGN = _signal.SIG_IGN > + > +_globals.update(Signals.__members__) > +_globals.update(Handlers.__members__) > + > +if 'pthread_sigmask' in _globals: > + class Sigmasks(_IntEnum): > + SIG_BLOCK = _signal.SIG_BLOCK > + SIG_UNBLOCK = _signal.SIG_UNBLOCK > + SIG_SETMASK = _signal.SIG_SETMASK > + > + _globals.update(Sigmasks.__members__) > + > + > +def _int_to_enum(value, enum_klass): > + """Convert a numeric value to an IntEnum member. > + If it's not a known member, return the numeric value itself. > + """ > + try: > + return enum_klass(value) > + except ValueError: > + return value > + > + > +def _enum_to_int(value): > + """Convert an IntEnum member to a numeric value. > + If it's not a IntEnum member return the value itself. > + """ > + try: > + return int(value) > + except (ValueError, TypeError): > + return value > + > + > +(a)_wraps(_signal.signal) > +def signal(signalnum, handler): > + handler = _signal.signal(_enum_to_int(signalnum), > _enum_to_int(handler)) > + return _int_to_enum(handler, Handlers) > + > + > +(a)_wraps(_signal.getsignal) > +def getsignal(signalnum): > + handler = _signal.getsignal(signalnum) > + return _int_to_enum(handler, Handlers) > + > + > +if 'pthread_sigmask' in _globals: > + @_wraps(_signal.pthread_sigmask) > + def pthread_sigmask(how, mask): > + sigs_set = _signal.pthread_sigmask(how, mask) > + return set(_int_to_enum(x, Signals) for x in sigs_set) > + pthread_sigmask.__doc__ = _signal.pthread_sigmask.__doc__ > + > + > +(a)_wraps(_signal.sigpending) > +def sigpending(): > + sigs = _signal.sigpending() > + return set(_int_to_enum(x, Signals) for x in sigs) > + > + > +if 'sigwait' in _globals: > + @_wraps(_signal.sigwait) > + def sigwait(sigset): > + retsig = _signal.sigwait(sigset) > + return _int_to_enum(retsig, Signals) > + sigwait.__doc__ = _signal.sigwait > + > +del _globals, _wraps > diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py > --- a/Lib/test/test_doctest.py > +++ b/Lib/test/test_doctest.py > @@ -2897,7 +2897,7 @@ > > def test_main(): > # Check the doctest cases in doctest itself: > - support.run_doctest(doctest, verbosity=True) > + ret = support.run_doctest(doctest, verbosity=True) > # Check the doctest cases defined here: > from test import test_doctest > support.run_doctest(test_doctest, verbosity=True) > diff --git a/Lib/test/test_signal.py b/Lib/test/test_signal.py > --- a/Lib/test/test_signal.py > +++ b/Lib/test/test_signal.py > @@ -1,6 +1,7 @@ > import unittest > from test import support > from contextlib import closing > +import enum > import gc > import pickle > import select > @@ -39,6 +40,22 @@ > return None > > > +class GenericTests(unittest.TestCase): > + > + def test_enums(self): > + for name in dir(signal): > + sig = getattr(signal, name) > + if name in {'SIG_DFL', 'SIG_IGN'}: > + self.assertIsInstance(sig, signal.Handlers) > + elif name in {'SIG_BLOCK', 'SIG_UNBLOCK', 'SIG_SETMASK'}: > + self.assertIsInstance(sig, signal.Sigmasks) > + elif name.startswith('SIG') and not name.startswith('SIG_'): > + self.assertIsInstance(sig, signal.Signals) > + elif name.startswith('CTRL_'): > + self.assertIsInstance(sig, signal.Signals) > + self.assertEqual(sys.platform, "win32") > + > + > @unittest.skipIf(sys.platform == "win32", "Not valid on Windows") > class InterProcessSignalTests(unittest.TestCase): > MAX_DURATION = 20 # Entire test should last at most 20 sec. > @@ -195,6 +212,7 @@ > > def test_getsignal(self): > hup = signal.signal(signal.SIGHUP, self.trivial_signal_handler) > + self.assertIsInstance(hup, signal.Handlers) > self.assertEqual(signal.getsignal(signal.SIGHUP), > self.trivial_signal_handler) > signal.signal(signal.SIGHUP, hup) > @@ -271,7 +289,7 @@ > > os.close(read) > os.close(write) > - """.format(signals, ordered, test_body) > + """.format(tuple(map(int, signals)), ordered, test_body) > > assert_python_ok('-c', code) > > @@ -604,6 +622,8 @@ > signal.pthread_sigmask(signal.SIG_BLOCK, [signum]) > os.kill(os.getpid(), signum) > pending = signal.sigpending() > + for sig in pending: > + assert isinstance(sig, signal.Signals), repr(pending) > if pending != {signum}: > raise Exception('%s != {%s}' % (pending, signum)) > try: > @@ -660,6 +680,7 @@ > code = '''if 1: > import signal > import sys > + from signal import Signals > > def handler(signum, frame): > 1/0 > @@ -702,6 +723,7 @@ > def test(signum): > signal.alarm(1) > received = signal.sigwait([signum]) > + assert isinstance(received, signal.Signals), received > if received != signum: > raise Exception('received %s, not %s' % (received, > signum)) > ''') > @@ -842,8 +864,14 @@ > def kill(signum): > os.kill(os.getpid(), signum) > > + def check_mask(mask): > + for sig in mask: > + assert isinstance(sig, signal.Signals), repr(sig) > + > def read_sigmask(): > - return signal.pthread_sigmask(signal.SIG_BLOCK, []) > + sigmask = signal.pthread_sigmask(signal.SIG_BLOCK, []) > + check_mask(sigmask) > + return sigmask > > signum = signal.SIGUSR1 > > @@ -852,6 +880,7 @@ > > # Unblock SIGUSR1 (and copy the old mask) to test our signal > handler > old_mask = signal.pthread_sigmask(signal.SIG_UNBLOCK, [signum]) > + check_mask(old_mask) > try: > kill(signum) > except ZeroDivisionError: > @@ -861,11 +890,13 @@ > > # Block and then raise SIGUSR1. The signal is blocked: the signal > # handler is not called, and the signal is now pending > - signal.pthread_sigmask(signal.SIG_BLOCK, [signum]) > + mask = signal.pthread_sigmask(signal.SIG_BLOCK, [signum]) > + check_mask(mask) > kill(signum) > > # Check the new mask > blocked = read_sigmask() > + check_mask(blocked) > if signum not in blocked: > raise Exception("%s not in %s" % (signum, blocked)) > if old_mask ^ blocked != {signum}: > @@ -928,7 +959,7 @@ > > def test_main(): > try: > - support.run_unittest(PosixTests, InterProcessSignalTests, > + support.run_unittest(GenericTests, PosixTests, > InterProcessSignalTests, > WakeupFDTests, WakeupSignalTests, > SiginterruptTest, ItimerTest, > WindowsSignalTests, > PendingSignalsTests) > diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c > --- a/Modules/signalmodule.c > +++ b/Modules/signalmodule.c > @@ -967,7 +967,7 @@ > }; > > PyMODINIT_FUNC > -PyInit_signal(void) > +PyInit__signal(void) > { > PyObject *m, *d, *x; > int i; > @@ -1380,7 +1380,7 @@ > void > PyOS_InitInterrupts(void) > { > - PyObject *m = PyImport_ImportModule("signal"); > + PyObject *m = PyImport_ImportModule("_signal"); > if (m) { > Py_DECREF(m); > } > diff --git a/PC/config.c b/PC/config.c > --- a/PC/config.c > +++ b/PC/config.c > @@ -19,7 +19,7 @@ > extern PyObject* PyInit__md5(void); > extern PyObject* PyInit_nt(void); > extern PyObject* PyInit__operator(void); > -extern PyObject* PyInit_signal(void); > +extern PyObject* PyInit__signal(void); > extern PyObject* PyInit__sha1(void); > extern PyObject* PyInit__sha256(void); > extern PyObject* PyInit__sha512(void); > > -- > Repository URL: http://hg.python.org/cpython > > _______________________________________________ > Python-checkins mailing list > Python-checkins(a)python.org > https://mail.python.org/mailman/listinfo/python-checkins > >

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Python 4?
by Skip Montanaro April 3, 2014

April 3, 2014

I saw mention recently of Python 4 and assumed all such references were either April Fool's jokes or pie-in-the-sky dreams for a new version of Python which may never arrive. Then I saw this message to webmaster. I would have guessed he meant 3.4 except he mentions having a Python3 (well, actually, a Phython3) directory. WTH is Python 4? Skip ---------- Forwarded message ---------- From: C. Reese <careese(a)vcu.org> Date: Thu, Apr 3, 2014 at 8:03 AM Subject: Updated phython To: webmaster(a)python.org just updated to Python 4. (installed to C: drive) ... now i notice there are separate Python2 & Python3 directories as well. i am not a programmer in any sense (just a basic computer user). 1. do i need to have python on my computer at all for basic use? (word, excel, power point, etc.)' 2. can i safely remove the Python 2 & Phython3 directories? (to save hard disk space) thanks CR

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Gmane not functioning.
by Terry Reedy April 3, 2014

April 3, 2014

Just to let those who read the list as a list (or via mail.python.org, as I just did as a backup) know, news.gmane.org appears to have stoppedreceiving new messages from mailing listsat about 0:30 this morning (apr 2). (I am judging this from the last recorded post on the super-busy linux kernallist http://news.gmane.org/gmane.linux.kernel/cutoff=1676398). So there will be some unknown number of people not reading and posting who might otherwise. Ditto for other lists. -- Terry Jan Reedy

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