Python-Dev October 2016

python-dev@python.org

62 participants
36 discussions

congrats on 3.5! Alas, windows 7 users are having problems installing it

by Laura Creighton

webmaster has already heard from 4 people who cannot install it. I sent them to the bug tracker or to python-list but they seem not to have gone either place. Is there some guide I should be sending them to, 'how to debug installation problems'? Laura

9 months, 3 weeks

OpenIndiana and Solaris support

by Victor Stinner

Hi, My question is simple: do we officially support Solaris and/or OpenIndiana? Jesus Cea runs an OpenIndiana buildbot slave: http://buildbot.python.org/all/buildslaves/cea-indiana-x86 "Open Indiana 32 bits" The platform module of Python says "Solaris-2.11", I don't know the exact OpenIndiana version. A lot of unit tests fail on this buildbot with MemoryError. I guess that it's related to Solaris which doesn't allow overcommit (allocating more memory than available memory on the system), or more simply because the slave has not enough memory. There is now an issue which seems specific to OpenIndiana: http://bugs.python.org/issue27847 It might impact Solaris as well, but the Solaris buildbot is offline since "684 builds". Five years ago, I reported a bug because the curses module of Python 3 doesn't build on Solaris nor OpenIndiana anymore. It seems like the bug was not fixed, and the issue is still open: http://bugs.python.org/issue13552 So my question is if we officially support Solaris and/or OpenIndiana. If yes, how can we fix issues when we only have buildbot slave which has memory errors, and no SSH access to this server? Solaris doesn't seem to be officially supported in Python, so I suggest to drop the OpenIndiana buildbot (which is failing since at least 2 years) and close all Solaris issues as "WONTFIX". Victor

3 years, 3 months

Default formatting

by Serhiy Storchaka

Classes that doesn't define the __format__ method for custom PEP 3101 formatting inherits it from parents. Originally the object.__format__ method was designed as [1]: def __format__(self, format_spec): return format(str(self), format_spec) An instance is converted to string and resulting string is formatted according to format specifier. Later this design was reconsidered [2], and now object.__format__ is equivalent to: def __format__(self, format_spec): assert format_spec == '' return format(str(self), '') Non-empty format specifier is rejected. But why call format() on resulting string? Why not return resulting string as is? object.__format__ could be simpler (not just implementation, but for understanding): def __format__(self, format_spec): assert format_spec == '' return str(self) This can change the behaviour in corner case. str(self) can return not exact string, but string subclass with overloaded __format__. But I think we can ignore such subtle difference. [1] https://www.python.org/dev/peps/pep-3101/ [2] http://bugs.python.org/issue7994

3 years, 5 months

Is there any remaining reason why weakref callbacks shouldn't be able to access the referenced object?

by Nathaniel Smith

Hi all, It's an old feature of the weakref API that you can define an arbitrary callback to be invoked when the referenced object dies, and that when this callback is invoked, it gets handed the weakref wrapper object -- BUT, only after it's been cleared, so that the callback can't access the originally referenced object. (I.e., this callback will never raise: def callback(ref): assert ref() is None.) AFAICT the original motivation for this seems was that if the weakref callback could get at the object, then the weakref callback would effectively be another finalizer like __del__, and finalizers and reference cycles don't mix, so weakref callbacks can't be finalizers. There's a long document from the 2.4 days about all the terrible things that could happen if arbitrary code like callbacks could get unfettered access to cyclic isolates at weakref cleanup time [1]. But that was 2.4. In the mean time, of course, PEP 442 fixed it so that finalizers and weakrefs mix just fine. In fact, weakref callbacks are now run *before* __del__ methods [2], so clearly it's now okay for arbitrary code to touch the objects during that phase of the GC -- at least in principle. So what I'm wondering is, would anything terrible happen if we started passing still-live weakrefs into weakref callbacks, and then clearing them afterwards? (i.e. making step 1 of the PEP 442 cleanup order be "run callbacks and then clear weakrefs", instead of the current "clear weakrefs and then run callbacks"). I skimmed through the PEP 442 discussion, and AFAICT the rationale for keeping the old weakref behavior was just that no-one could be bothered to mess with it [3]. [The motivation for my question is partly curiosity, and partly that in the discussion about how to handle GC for async objects, it occurred to me that it might be very nice if arbitrary classes that needed access to the event loop during cleanup could do something like def __init__(self, ...): loop = asyncio.get_event_loop() loop.gc_register(self) # automatically called by the loop when I am GC'ed; async equivalent of __del__ async def aclose(self): ... Right now something *sort* of like this is possible but it requires a much more cumbersome API, where every class would have to implement logic to fetch a cleanup callback from the loop, store it, and then call it from its __del__ method -- like how PEP 525 does it. Delaying weakref clearing would make this simpler API possible.] -n [1] https://github.com/python/cpython/blob/master/Modules/gc_weakref.txt [2] https://www.python.org/dev/peps/pep-0442/#id7 [3] https://mail.python.org/pipermail/python-dev/2013-May/126592.html -- Nathaniel J. Smith -- https://vorpus.org

3 years, 5 months

Benchmarking Python and micro-optimizations

by Victor Stinner

Hi, Last months, I worked a lot on benchmarks. I ran benchmarks, analyzed results in depth (up to the hardware and kernel drivers!), I wrote new tools and enhanced existing tools. * I wrote a new perf module which runs benchmarks in a reliable way and contains a LOT of features: collect metadata, JSON file format, commands to compare, render an histogram, etc. * I rewrote the Python benchmark suite: the old benchmarks Mercurial repository moved to a new performance GitHub project which uses my perf module and contains more benchmarks. * I also made minor enhancements to timeit in Python 3.7 -- some dev don't want major changes to not "break the backward compatibility". For timeit, I suggest to use my perf tool which includes a reliable timeit command and has much more features like --duplicate (repeat the statements to reduce the cost of the outer loop) and --compare-to (compare two versions of Python), but also all builtin perf features (JSON output, statistics, histogram, etc.). I added benchmarks from PyPy and Pyston benchmark suites to performance: performance 0.3.1 contains 51 benchmark scripts which run a total of 121 benchmarks. Example of tested Python modules: * SQLAlchemy * Dulwich (full Git implementation in Python) * Mercurial (currently only the startup time) * html5lib * pyaes (AES crypto cipher in pure Python) * sympy * Tornado (HTTP client and server) * Django (sadly, only the template engine right now, Pyston contains HTTP benchmarks) * pathlib * spambayes More benchmarks will be added later. It would be nice to add benchmarks on numpy for example, numpy is important for a large part of our community. All these (new or updated) tools can now be used to take smarter decisions on optimizations. Please don't push any optimization anymore without providing reliable benchmark results! My first major action was to close the latest attempt to micro-optimize int+int in Python/ceval.c, http://bugs.python.org/issue21955 : I closed the issue as rejected, because there is no significant speedup on benchmarks other than two (tiny) microbenchmarks. To make sure that no one looses its time on trying to micro-optimize int+int, I even added a comment to Python/ceval.c :-) https://hg.python.org/cpython/rev/61fcb12a9873 "Please don't try to micro-optimize int+int" The perf and performance are now well tested: Travis CI runs tests on the new commits and pull requests, and the "tox" command can be used locally to test different Python versions, pep8, doc, ... in a single command. Next steps: * Run performance 0.3.1 on speed.python.org: the benchmark runner is currently stopped (and still uses the old benchmarks project). The website part may be updated to allow to download full JSON files which includes *all* information (all timings, metadata and more). * I plan to run performance on CPython 2.7, CPython 3.7, PyPy and PyPy 3. Maybe also CPython 3.5 and CPython 3.6 if they don't take too much resources. * Later, we can consider adding more implementations of Python: Jython, IronPython, MicroPython, Pyston, Pyjion, etc. All benchmarks should be run on the same hardware to be comparable. * Later, we might also allow other projects to upload their own benchmark results, but we should find a solution to groups benchmark results per benchmark runner (ex: at least by the hostname, perf JSON contains the hostname) to not compare two results from two different hardware * We should continue to add more benchmarks to the performance benchmark suite, especially benchmarks more representative of real applications (we have enough microbenchmarks!) Links: * perf: http://perf.readthedocs.io/ * performance: https://github.com/python/performance * Python Speed mailing list: https://mail.python.org/mailman/listinfo/speed * https://speed.python.org/ (currently outdated, and don't use performance yet) See https://pypi.python.org/pypi/performance which contains even more links to Python benchmarks (PyPy, Pyston, Numba, Pythran, etc.) Victor

3 years, 8 months

2.6 branch in Mercurial?

by Skip Montanaro

I need to do a little 2.6 spelunking. I don't see a 2.6 branch in the output of "hg branches". Is "hg clone v2.6.9" the proper incantation to get the latest version (or perhaps "v2.6")? Thx, Skip

3 years, 8 months

Re: [Python-Dev] [Python-ideas] Show more info when `python -vV`

by INADA Naoki

(Added python-dev in CC list, because there are enough +1 already). On Mon, Oct 17, 2016 at 3:06 PM, Chris Angelico <rosuav(a)gmail.com> wrote: > On Mon, Oct 17, 2016 at 5:02 PM, INADA Naoki <songofacandy(a)gmail.com> wrote: >> $ ./python.exe -V >> Python 3.6.0b2+ >> >> $ ./python.exe -VV >> Python 3.6.0b2+ (3.6:0b29adb5c804+, Oct 17 2016, 15:00:12) >> [GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.38)] > > LGTM. > > What's the view on backporting this to 2.7.x? We're still a good few > years away from its death, and it'd be helpful if recent 2.7s could > give this info too. > > ChrisA I want to add it at least Python 3.6. Because one reason I want to propose this is I can't see exact Python version (commit id) for "nightly" or "3.6-dev" on Travis-CI test. But Python 3.6 is beta stage already. If we apply rule strictly, it should be added only in default branch (Python 3.7). So, what version can I add this? a. Only Python 3.7+ b. (beta) Python 3.6+ c. (maintenance) Python 2.7 and Python 3.5+ -- INADA Naoki <songofacandy(a)gmail.com>

3 years, 8 months

Reminder: 3.6.0b3 snapshot 2016-10-31 12:00 UTC

by Ned Deily

The third, and next-to-last, beta snapshot planned for the 3.6 release cycle is coming up in a few days. With fewer than 7 weeks remaining until the 3.6.0 release, it is very important that we all focus on stability and correctness. Please try to make sure that all remaining non-doc issues associated with new features are addressed in b3. Any remaining 3.6 feature-related issues still open after b3 should be marked in the issue tracker as "release blocker" and *must* be addressed one way or another by b4, 11-21. All other non-critical bug fixes should also be checked in by b4. Only release critical and doc fixes will be allowed once we exit the beta phase. Please plan accordingly. Please contact me if you have any questions about the 3.6.0 schedule or about whether a change is appropriate at this point in the 3.6.0 cycle. To recap, the remaining milestones for 3.6.0: 2016-10-31, 1200 UTC: 3.6.0 beta 3 (feature fixes, bug fixes, doc fixes) 2016-11-21: 3.6.0 beta 4 (important bug fixes and doc fixes) 2016-12-05 3.6.0 release candidate 1 (3.6.0 code freeze, release critical bug fixes, doc fixes) 2016-12-16 3.6.0 release (3.6.0rc1 plus any necessary emergency fixes) Thank you all again for your efforts so far on 3.6! --Ned https://www.python.org/dev/peps/pep-0494/ -- Ned Deily nad(a)python.org -- []

3 years, 8 months

Clarification for concurrent.futures.Future

by Mark Spruiell

The docs for this class state: "Future instances are created by Executor.submit() and should not be created directly except for testing." https://docs.python.org/3/library/concurrent.futures.html#future-objects We have a need for a thread-safe future type in our extension but this statement makes us hesitate to use it. We don't need the executor functionality. We can write our own future class easily enough, we're just wondering what the justification was for the limitations mentioned in the docs. Thanks, Mark Spruiell ZeroC, Inc.

3 years, 8 months

Summary of Python tracker Issues

by Python tracker

ACTIVITY SUMMARY (2016-10-21 - 2016-10-28) 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 5525 ( +1) closed 34779 (+51) total 40304 (+52) Open issues with patches: 2398 Issues opened (36) ================== #5830: heapq item comparison problematic with sched's events http://bugs.python.org/issue5830 reopened by serhiy.storchaka #5996: abstract class instantiable when subclassing dict http://bugs.python.org/issue5996 reopened by gvanrossum #25002: Deprecate asyncore/asynchat http://bugs.python.org/issue25002 reopened by serhiy.storchaka #25152: venv documentation doesn't tell you how to specify a particula http://bugs.python.org/issue25152 reopened by serhiy.storchaka #28498: tk busy command http://bugs.python.org/issue28498 opened by tkinter #28499: Logging module documentation needs a rework. http://bugs.python.org/issue28499 opened by Pierre Bousquie #28501: [Patch] Make os.umask() optional http://bugs.python.org/issue28501 opened by EdSchouten #28502: [Patch] Make os.chdir() optional http://bugs.python.org/issue28502 opened by EdSchouten #28503: [Patch] '_crypt' module: fix implicit declaration of crypt(), http://bugs.python.org/issue28503 opened by EdSchouten #28506: Multiprocessing Pool starmap - struct.error: 'i' format requir http://bugs.python.org/issue28506 opened by Justin Ting #28512: PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject() alwa http://bugs.python.org/issue28512 opened by serhiy.storchaka #28513: Document zipfile CLI http://bugs.python.org/issue28513 opened by serhiy.storchaka #28516: contextlib.ExitStack.__enter__ has trivial but undocumented be http://bugs.python.org/issue28516 opened by walker.hale.iv #28518: execute("begin immediate") throwing OperationalError http://bugs.python.org/issue28518 opened by fschulze #28519: Update pydoc tool to support generic types http://bugs.python.org/issue28519 opened by levkivskyi #28521: _PyEval_RequestCodeExtraIndex should return a globally valid i http://bugs.python.org/issue28521 opened by jpe #28522: can't make IDLEX work with python._pth and python-3.6.0b2 http://bugs.python.org/issue28522 opened by Big Stone #28523: Idlelib.configdialog: use 'color' insteadof 'colour' http://bugs.python.org/issue28523 opened by terry.reedy #28524: Set default argument of logging.disable() to logging.CRITICAL http://bugs.python.org/issue28524 opened by Al.Sweigart #28528: Pdb.checkline() http://bugs.python.org/issue28528 opened by takluyver #28530: Howto detect if an object is of type os.DirEntry http://bugs.python.org/issue28530 opened by stephan #28531: Improve utf7 encoder memory usage http://bugs.python.org/issue28531 opened by xiang.zhang #28532: Show sys.version when -V option is supplied twice. http://bugs.python.org/issue28532 opened by inada.naoki #28533: Replace asyncore http://bugs.python.org/issue28533 opened by Mariatta #28534: Replace asynchat http://bugs.python.org/issue28534 opened by Mariatta #28536: Show the qualified name when a call fails http://bugs.python.org/issue28536 opened by Ryan.Gonzalez #28538: _socket module cross-compilation error on android-24 http://bugs.python.org/issue28538 opened by xdegaye #28539: httplib/http.client HTTPConnection._set_hostport() regression http://bugs.python.org/issue28539 opened by cfs-pure #28540: math.degrees(sys.float_info.max) should throw an OverflowError http://bugs.python.org/issue28540 opened by franciscouzo #28541: Improve test coverage for json library - loading bytes http://bugs.python.org/issue28541 opened by Eric Appelt #28542: document cross compilation http://bugs.python.org/issue28542 opened by xdegaye #28543: Incomplete fast path codecs aliases in codecs doc http://bugs.python.org/issue28543 opened by xiang.zhang #28544: Implement asyncio.Task in C http://bugs.python.org/issue28544 opened by yselivanov #28546: Better explain setting pdb breakpoints http://bugs.python.org/issue28546 opened by iank #28547: Python to use Windows Certificate Store http://bugs.python.org/issue28547 opened by Jean-Philippe Landry #28548: http.server parse_request() bug and error reporting http://bugs.python.org/issue28548 opened by barry Most recent 15 issues with no replies (15) ========================================== #28548: http.server parse_request() bug and error reporting http://bugs.python.org/issue28548 #28546: Better explain setting pdb breakpoints http://bugs.python.org/issue28546 #28543: Incomplete fast path codecs aliases in codecs doc http://bugs.python.org/issue28543 #28542: document cross compilation http://bugs.python.org/issue28542 #28538: _socket module cross-compilation error on android-24 http://bugs.python.org/issue28538 #28534: Replace asynchat http://bugs.python.org/issue28534 #28533: Replace asyncore http://bugs.python.org/issue28533 #28532: Show sys.version when -V option is supplied twice. http://bugs.python.org/issue28532 #28528: Pdb.checkline() http://bugs.python.org/issue28528 #28521: _PyEval_RequestCodeExtraIndex should return a globally valid i http://bugs.python.org/issue28521 #28519: Update pydoc tool to support generic types http://bugs.python.org/issue28519 #28512: PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject() alwa http://bugs.python.org/issue28512 #28503: [Patch] '_crypt' module: fix implicit declaration of crypt(), http://bugs.python.org/issue28503 #28502: [Patch] Make os.chdir() optional http://bugs.python.org/issue28502 #28501: [Patch] Make os.umask() optional http://bugs.python.org/issue28501 Most recent 15 issues waiting for review (15) ============================================= #28546: Better explain setting pdb breakpoints http://bugs.python.org/issue28546 #28544: Implement asyncio.Task in C http://bugs.python.org/issue28544 #28543: Incomplete fast path codecs aliases in codecs doc http://bugs.python.org/issue28543 #28542: document cross compilation http://bugs.python.org/issue28542 #28541: Improve test coverage for json library - loading bytes http://bugs.python.org/issue28541 #28540: math.degrees(sys.float_info.max) should throw an OverflowError http://bugs.python.org/issue28540 #28539: httplib/http.client HTTPConnection._set_hostport() regression http://bugs.python.org/issue28539 #28536: Show the qualified name when a call fails http://bugs.python.org/issue28536 #28532: Show sys.version when -V option is supplied twice. http://bugs.python.org/issue28532 #28531: Improve utf7 encoder memory usage http://bugs.python.org/issue28531 #28528: Pdb.checkline() http://bugs.python.org/issue28528 #28524: Set default argument of logging.disable() to logging.CRITICAL http://bugs.python.org/issue28524 #28523: Idlelib.configdialog: use 'color' insteadof 'colour' http://bugs.python.org/issue28523 #28516: contextlib.ExitStack.__enter__ has trivial but undocumented be http://bugs.python.org/issue28516 #28513: Document zipfile CLI http://bugs.python.org/issue28513 Top 10 most discussed issues (10) ================================= #28498: tk busy command http://bugs.python.org/issue28498 36 msgs #28522: can't make IDLEX work with python._pth and python-3.6.0b2 http://bugs.python.org/issue28522 18 msgs #25002: Deprecate asyncore/asynchat http://bugs.python.org/issue25002 16 msgs #23262: webbrowser module broken with Firefox 36+ http://bugs.python.org/issue23262 14 msgs #28544: Implement asyncio.Task in C http://bugs.python.org/issue28544 12 msgs #28539: httplib/http.client HTTPConnection._set_hostport() regression http://bugs.python.org/issue28539 9 msgs #28199: Compact dict resizing is doing too much work http://bugs.python.org/issue28199 7 msgs #28524: Set default argument of logging.disable() to logging.CRITICAL http://bugs.python.org/issue28524 7 msgs #27275: KeyError thrown by optimised collections.OrderedDict.popitem() http://bugs.python.org/issue27275 6 msgs #5996: abstract class instantiable when subclassing dict http://bugs.python.org/issue5996 5 msgs Issues closed (53) ================== #3015: tkinter with wantobjects=False has been broken for some time http://bugs.python.org/issue3015 closed by serhiy.storchaka #17711: Persistent id in pickle with protocol version 0 http://bugs.python.org/issue17711 closed by serhiy.storchaka #20357: Mention buildbots in the core dev section of the devguide http://bugs.python.org/issue20357 closed by berker.peksag #20491: textwrap: Non-breaking space not honored http://bugs.python.org/issue20491 closed by serhiy.storchaka #22757: TclStackFree: incorrect freePtr. Call out of sequence? http://bugs.python.org/issue22757 closed by serhiy.storchaka #22949: fnmatch.translate doesn't add ^ at the beginning http://bugs.python.org/issue22949 closed by serhiy.storchaka #23214: BufferedReader.read1(size) signature incompatible with Buffere http://bugs.python.org/issue23214 closed by martin.panter #25464: Tix HList header_exists should be "exist" http://bugs.python.org/issue25464 closed by serhiy.storchaka #25953: re fails to identify invalid numeric group references in repla http://bugs.python.org/issue25953 closed by serhiy.storchaka #26240: Docstring of the subprocess module should be cleaned up http://bugs.python.org/issue26240 closed by martin.panter #26682: Ttk Notebook tabs do not show with 1-2 char names http://bugs.python.org/issue26682 closed by ned.deily #26796: BaseEventLoop.run_in_executor shouldn't specify max_workers fo http://bugs.python.org/issue26796 closed by yselivanov #26923: asyncio.gather drops cancellation http://bugs.python.org/issue26923 closed by yselivanov #27025: More human readable generated widget names http://bugs.python.org/issue27025 closed by serhiy.storchaka #27989: incomplete signature with help function using typing http://bugs.python.org/issue27989 closed by gvanrossum #28107: Update typing module documentation for NamedTuple http://bugs.python.org/issue28107 closed by gvanrossum #28213: asyncio SSLProtocol _app_transport is private http://bugs.python.org/issue28213 closed by yselivanov #28255: TextCalendar.prweek/month/year outputs an extra whitespace cha http://bugs.python.org/issue28255 closed by serhiy.storchaka #28314: ElementTree: Element.getiterator(tag) broken in 3.6 http://bugs.python.org/issue28314 closed by serhiy.storchaka #28330: Use simpler and faster sched.Event definition http://bugs.python.org/issue28330 closed by rhettinger #28333: input() with Unicode prompt produces mojibake on Windows http://bugs.python.org/issue28333 closed by steve.dower #28353: os.fwalk() unhandled exception when error occurs accessing sym http://bugs.python.org/issue28353 closed by serhiy.storchaka #28396: Remove *.pyo references from man page http://bugs.python.org/issue28396 closed by brett.cannon #28408: Fix redundant code and memory leak in _PyUnicodeWriter_Finish http://bugs.python.org/issue28408 closed by serhiy.storchaka #28426: PyUnicode_AsDecodedObject can only return unicode now http://bugs.python.org/issue28426 closed by serhiy.storchaka #28430: asyncio: C implemeted Future cause Tornado test fail http://bugs.python.org/issue28430 closed by inada.naoki #28435: test_urllib2_localnet.ProxyAuthTests fails with no_proxy and N http://bugs.python.org/issue28435 closed by martin.panter #28439: Remove redundant checks in PyUnicode_EncodeLocale and PyUnicod http://bugs.python.org/issue28439 closed by serhiy.storchaka #28465: python 3.5 magic number http://bugs.python.org/issue28465 closed by brett.cannon #28469: timeit: use powers of 2 in autorange(), instead of powers of 1 http://bugs.python.org/issue28469 closed by serhiy.storchaka #28482: test_typing fails if asyncio unavailable http://bugs.python.org/issue28482 closed by gvanrossum #28488: shutil.make_archive (xxx, zip, root_dir) is adding './' entry http://bugs.python.org/issue28488 closed by serhiy.storchaka #28496: Mark up constants 0, 1, -1 in C API docs http://bugs.python.org/issue28496 closed by serhiy.storchaka #28497: future in tkinter http://bugs.python.org/issue28497 closed by serhiy.storchaka #28500: pep 525/asyncio: Handle when async generators are GCed from an http://bugs.python.org/issue28500 closed by yselivanov #28504: Cleanup unicode_decode_call_errorhandler_wchar/writer http://bugs.python.org/issue28504 closed by serhiy.storchaka #28505: pip installation issues with default path on Windows http://bugs.python.org/issue28505 closed by eryksun #28507: Regenerate ./configure on the default branch http://bugs.python.org/issue28507 closed by ned.deily #28508: Need way to expose incremental size of key sharing dicts http://bugs.python.org/issue28508 closed by rhettinger #28509: dict.update allocates too much http://bugs.python.org/issue28509 closed by inada.naoki #28510: PyUnicodeDecodeError_GetObject always return bytes http://bugs.python.org/issue28510 closed by serhiy.storchaka #28511: Use the "U" format for parsing Unicode object arg in PyArg_Par http://bugs.python.org/issue28511 closed by xiang.zhang #28514: Python (IDLE?) freezes on file save on Windows http://bugs.python.org/issue28514 closed by SilentGhost #28515: Py3k warnings in Python 2.7 tests http://bugs.python.org/issue28515 closed by serhiy.storchaka #28517: Dead code in wordcode http://bugs.python.org/issue28517 closed by serhiy.storchaka #28520: Failed to install Python 3.3.5 on OSX 10.11.6 http://bugs.python.org/issue28520 closed by ned.deily #28525: Incorrect documented parameter for gc.collect http://bugs.python.org/issue28525 closed by python-dev #28526: Use PyUnicode_AsEncodedString instead of PyUnicode_AsEncodedOb http://bugs.python.org/issue28526 closed by serhiy.storchaka #28527: Hack in `genericpath.commonprefix()` crashes if `m` argument i http://bugs.python.org/issue28527 closed by christian.heimes #28529: 0 ** 0 should raise ArithmeticError http://bugs.python.org/issue28529 closed by tim.peters #28535: round seems to provide floor, not proper rounding http://bugs.python.org/issue28535 closed by r.david.murray #28537: abc module fails to reject instantiation of some multiply-inhe http://bugs.python.org/issue28537 closed by r.david.murray #28545: socket.bind to AF_PACKET should use passed interface name http://bugs.python.org/issue28545 closed by mturon

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Python-Dev October 2016