Mailman 3 June 2013 - Python-Dev

python symbolizition
by Pynix Wang June 14, 2013

June 14, 2013

1.lambda expression c# a.(x, y) => x == y b.() => SomeMethod() ruby: -> {|msg| puts msg} python can use c# like and remove "lambda" keyword. 2.global variable ruby $glo_var python can use $ or @ or another and remove "global".

4 3

Re: [Python-Dev] cpython: Move test_pep352 over to unittest.main()
by Serhiy Storchaka June 14, 2013

June 14, 2013

14.06.13 04:18, brett.cannon написав(ла): > http://hg.python.org/cpython/rev/af27c661d4fb > changeset: 84115:af27c661d4fb > user: Brett Cannon <brett(a)python.org> > date: Thu Jun 13 21:18:43 2013 -0400 > summary: > Move test_pep352 over to unittest.main() You forgot about: from test.support import run_unittest

1 0

Re: [Python-Dev] cpython: fixd refleak
by Antoine Pitrou June 13, 2013

June 13, 2013

On Mon, 10 Jun 2013 10:47:28 +0200 (CEST) christian.heimes <python-checkins(a)python.org> wrote: > http://hg.python.org/cpython/rev/6860263c05b3 > changeset: 84077:6860263c05b3 > user: Christian Heimes <christian(a)cheimes.de> > date: Mon Jun 10 10:47:22 2013 +0200 > summary: > fixd refleak > [...] > - return Py_BuildValue("(OOOO)", ofile_env, ofile, odir_env, odir); > + if ((tup = PyTuple_New(4)) == NULL) { > + goto … [View More]

2 2

ssl improvements and testing question
by Christian Heimes June 13, 2013

June 13, 2013

Hi, I'm working on a couple of improvements for the ssl module: http://bugs.python.org/issue17134 http://bugs.python.org/issue18138 http://bugs.python.org/issue18143 http://bugs.python.org/issue18147 #17134 is going to provide a way to use Window's crypt32.dll to load CA certs from Window's CA cert storage. I have a working proof of concept [1] that uses ctypes to interface crypt32.dll. I'll reimplement the code in C. #18138 implements the bits and pieces for #17134 in order to add DER and … [View More]

2 1

Enhancement of Python memory allocators
by Victor Stinner June 13, 2013

June 13, 2013

Hi, I would like to improve memory allocators of Python. My two use cases are replacing memory allocators with custom allocators in embedded system and hooking allocators to track usage of memory. I wrote a patch for this, I'm going to commit it if nobody complains: http://bugs.python.org/issue3329 Using this patch, detecting memory corruptions (buffer underflow and overflow) can be done without recompilation. We may add an environment variable to enable Python debug functions at runtime, … [View More]

2 4

Re: [Python-Dev] [Python-checkins] cpython: Move test___all__ over to unittest.main() and use ModuleNotFoundError
by Brett Cannon June 13, 2013

June 13, 2013

Obviously the commit message is a little misleading since changes I was about to stage accidentally went in on this change. Sorry about that. Same basic concept of the changes, just to more modules. On Wed, Jun 12, 2013 at 8:12 PM, brett.cannon <python-checkins(a)python.org>wrote: > http://hg.python.org/cpython/rev/c4d7228421df > changeset: 84106:c4d7228421df > user: Brett Cannon <brett(a)python.org> > date: Wed Jun 12 20:12:30 2013 -0400 > summary: … [View More]> Move test___all__ over to unittest.main() and use ModuleNotFoundError > > files: > Lib/test/regrtest.py | 16 ++++++++-------- > Lib/test/support.py | 14 +++++++------- > Lib/test/test___all__.py | 7 ++----- > Lib/xmlrpc/server.py | 2 +- > Lib/zipfile.py | 6 +++--- > 5 files changed, 21 insertions(+), 24 deletions(-) > > > diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py > --- a/Lib/test/regrtest.py > +++ b/Lib/test/regrtest.py > @@ -146,11 +146,11 @@ > > try: > import threading > -except ImportError: > +except ModuleNotFoundError: > threading = None > try: > import multiprocessing.process > -except ImportError: > +except ModuleNotFoundError: > multiprocessing = None > > > @@ -180,7 +180,7 @@ > if sys.platform == 'darwin': > try: > import resource > - except ImportError: > + except ModuleNotFoundError: > pass > else: > soft, hard = resource.getrlimit(resource.RLIMIT_STACK) > @@ -571,7 +571,7 @@ > if findleaks: > try: > import gc > - except ImportError: > + except ModuleNotFoundError: > print('No GC available, disabling findleaks.') > findleaks = False > else: > @@ -692,7 +692,7 @@ > if use_mp: > try: > from threading import Thread > - except ImportError: > + except ModuleNotFoundError: > print("Multiprocess option requires thread support") > sys.exit(2) > from queue import Queue > @@ -1396,7 +1396,7 @@ > pic = sys.path_importer_cache.copy() > try: > import zipimport > - except ImportError: > + except ModuleNotFoundError: > zdc = None # Run unmodified on platforms without zipimport support > else: > zdc = zipimport._zip_directory_cache.copy() > @@ -1473,7 +1473,7 @@ > sys.path_importer_cache.update(pic) > try: > import zipimport > - except ImportError: > + except ModuleNotFoundError: > pass # Run unmodified on platforms without zipimport support > else: > zipimport._zip_directory_cache.clear() > @@ -1510,7 +1510,7 @@ > doctest.master = None > try: > import ctypes > - except ImportError: > + except ModuleNotFoundError: > # Don't worry about resetting the cache if ctypes is not supported > pass > else: > diff --git a/Lib/test/support.py b/Lib/test/support.py > --- a/Lib/test/support.py > +++ b/Lib/test/support.py > @@ -29,27 +29,27 @@ > > try: > import _thread, threading > -except ImportError: > +except ModuleNotFoundError: > _thread = None > threading = None > try: > import multiprocessing.process > -except ImportError: > +except ModuleNotFoundError: > multiprocessing = None > > try: > import zlib > -except ImportError: > +except ModuleNotFoundError: > zlib = None > > try: > import bz2 > -except ImportError: > +except ModuleNotFoundError: > bz2 = None > > try: > import lzma > -except ImportError: > +except ModuleNotFoundError: > lzma = None > > __all__ = [ > @@ -116,7 +116,7 @@ > with _ignore_deprecated_imports(deprecated): > try: > return importlib.import_module(name) > - except ImportError as msg: > + except ModuleNotFoundError as msg: > if sys.platform.startswith(tuple(required_on)): > raise > raise unittest.SkipTest(str(msg)) > @@ -188,7 +188,7 @@ > if not _save_and_block_module(blocked_name, orig_modules): > names_to_remove.append(blocked_name) > fresh_module = importlib.import_module(name) > - except ImportError: > + except ModuleNotFoundError: > fresh_module = None > finally: > for orig_name, module in orig_modules.items(): > diff --git a/Lib/test/test___all__.py b/Lib/test/test___all__.py > --- a/Lib/test/test___all__.py > +++ b/Lib/test/test___all__.py > @@ -75,7 +75,7 @@ > try: > import rlcompleter > import locale > - except ImportError: > + except ModuleNotFoundError: > pass > else: > locale.setlocale(locale.LC_CTYPE, 'C') > @@ -113,8 +113,5 @@ > print('Following modules failed to be imported:', > failed_imports) > > > -def test_main(): > - support.run_unittest(AllTest) > - > if __name__ == "__main__": > - test_main() > + unittest.main() > diff --git a/Lib/xmlrpc/server.py b/Lib/xmlrpc/server.py > --- a/Lib/xmlrpc/server.py > +++ b/Lib/xmlrpc/server.py > @@ -116,7 +116,7 @@ > import traceback > try: > import fcntl > -except ImportError: > +except ModuleNotFoundError: > fcntl = None > > def resolve_dotted_attribute(obj, attr, allow_dotted_names=True): > diff --git a/Lib/zipfile.py b/Lib/zipfile.py > --- a/Lib/zipfile.py > +++ b/Lib/zipfile.py > @@ -18,18 +18,18 @@ > try: > import zlib # We may need its compression method > crc32 = zlib.crc32 > -except ImportError: > +except ModuleNotFoundError: > zlib = None > crc32 = binascii.crc32 > > try: > import bz2 # We may need its compression method > -except ImportError: > +except ModuleNotFoundError: > bz2 = None > > try: > import lzma # We may need its compression method > -except ImportError: > +except ModuleNotFoundError: > lzma = None > > __all__ = ["BadZipFile", "BadZipfile", "error", > > -- > 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]

1 0

Doubly linked lists in Python core?
by Skip Montanaro June 11, 2013

June 11, 2013

I encountered this disconcerting message yesterday on a Linux system running Python 2.7.2: *** glibc detected *** /opt/local/bin/python: corrupted double-linked list: 0x0000000003b01c90 *** Of course, no core file or other information about where the problem occurred was left behind, just the raw pointer value. Running under valgrind didn't report anything obvious, at least nothing different than a run with slightly different command line parameters which didn't elicit the message. I … [View More]

3 3

new Plan 9 (and family) port of v2.7.5
by Jeff Sickel June 11, 2013

June 11, 2013

I have a set of patches I've developed based on the 2.7 branch that provides a working port of Python 2.7.5 to Plan 9 386 and amd64 builds (an arm version is mostly working, but will need a few more updates before being hauled off on the wagon). Most of the changes, including mkfiles, are local to a Plan9 subdirectory. There are a few changes to Lib/*.py files specifically site.py and sysconfig.py to make living in a semi-POSIX world tolerable with many current Python modules. Because Plan 9 … [View More]

2 1

Python 3 metaclasses, doctest, and unittest
by Ethan Furman June 10, 2013

June 10, 2013

I just wanted to take a minute and say THANK YOU to everyone involved in getting Python 3 to where it is today. It is so much easier to use, especially metaclasses (nearly pulled my hair out trying to get Enum working on Py2!). Also a big thank you to the doctest folks as it was invaluable in getting my Py2 examples correct, and, of course, the unittest folks as I would have been lost without those. Thank you thank you thank you. -- ~Ethan~ P.S. I'll get a backported package on PyPI … [View More]

1 0

Ordering keyword dicts
by Guido van Rossum June 10, 2013

June 10, 2013

On Sat, May 18, 2013 at 10:27 PM, Raymond Hettinger <raymond.hettinger(a)gmail.com> wrote: > BTW, I'm +1 on the idea for ordering keyword-args. It makes > it easier to debug if the arguments show-up in the order they > were created. AFAICT, no purpose is served by scrambling them > (which is exacerbated by the new randomized hashing security feature). I'm slow at warming up to the idea. My main concern is speed -- since most code doesn't need it and function calls are … [View More]

14 15