Mailman 3 June 2017 - Python-Dev

Summary of Python tracker Issues
by Python tracker June 2, 2017

June 2, 2017

ACTIVITY SUMMARY (2017-05-26 - 2017-06-02) 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 6025 (+26) closed 36284 (+43) total 42309 (+69) Open issues with patches: 2370 Issues opened (54) ================== #30486: Allow setting cell value http://bugs.python.org/issue30486 opened by pitrou #30487: DOC: automatically create a venv and install Sphinx when runni http://bugs.python.org/issue30487 opened by cjrh #30489: Add CmdLineTest to standard library http://bugs.python.org/issue30489 opened by Santiago Castro #30490: Allow pass an exception to the Event.set method http://bugs.python.org/issue30490 opened by pfreixes #30491: Add a lightweight mechanism for detecting un-awaited coroutine http://bugs.python.org/issue30491 opened by njs #30492: 'make clinic' does not work for out of tree builds / clinic.py http://bugs.python.org/issue30492 opened by gregory.p.smith #30493: Increase coverage of base64 http://bugs.python.org/issue30493 opened by leecannon #30495: IDLE: modernize textview module http://bugs.python.org/issue30495 opened by terry.reedy #30498: Run Python's slowest tests in the first 3/4 of tests when usin http://bugs.python.org/issue30498 opened by brett.cannon #30500: urllib connects to a wrong host http://bugs.python.org/issue30500 opened by Nam.Nguyen #30501: Produce optimized code for boolean conditions http://bugs.python.org/issue30501 opened by serhiy.storchaka #30502: Fix buffer handling of OBJ_obj2txt http://bugs.python.org/issue30502 opened by christian.heimes #30504: Allow inspecting buffering attribute of IO objects http://bugs.python.org/issue30504 opened by pitrou #30505: Performance of typing._ProtocolMeta._get_protocol_attrs and is http://bugs.python.org/issue30505 opened by orenbenkiki #30508: "Task exception was never retrieved" reported for a canceled t http://bugs.python.org/issue30508 opened by Miguel Grinberg #30509: Optimize calling type slots http://bugs.python.org/issue30509 opened by serhiy.storchaka #30510: c_bool type not supported for BigEndianStructure on little-end http://bugs.python.org/issue30510 opened by Hassan El Karouni #30511: shutil.make_archive should not need to chdir (alternatively: m http://bugs.python.org/issue30511 opened by Alex Gaynor #30512: CAN Socket support for NetBSD http://bugs.python.org/issue30512 opened by wiz #30513: getrusage returns platform-dependent value http://bugs.python.org/issue30513 opened by sam-s #30514: test_poplib replace asyncore http://bugs.python.org/issue30514 opened by grzgrzgrz3 #30516: Documentation for datetime substract operation incorrect? http://bugs.python.org/issue30516 opened by René Hernández Remedios #30518: Import type aliases from another module http://bugs.python.org/issue30518 opened by Paragape #30519: Add daemon argument to Timer http://bugs.python.org/issue30519 opened by awolokita #30520: loggers can't be pickled http://bugs.python.org/issue30520 opened by pitrou #30521: IDLE: Add navigate bar and replace current goto dialog http://bugs.python.org/issue30521 opened by louielu #30522: Allow replacing a logging.StreamHandler's stream http://bugs.python.org/issue30522 opened by pitrou #30523: unittest: add --list-tests option to only display the list of http://bugs.python.org/issue30523 opened by haypo #30524: iter(classmethod, sentinel) broken for Argument Clinic class m http://bugs.python.org/issue30524 opened by mjpieters #30525: Expose SCTs on TLS connections http://bugs.python.org/issue30525 opened by alex #30526: Allow setting line_buffering on existing TextIOWrapper http://bugs.python.org/issue30526 opened by pitrou #30528: ipaddress.IPv{4,6}Network.reverse_pointer is broken http://bugs.python.org/issue30528 opened by h.venev #30529: Incorrect error messages for invalid whitespaces in f-string s http://bugs.python.org/issue30529 opened by serhiy.storchaka #30530: Descriptors HowTo: Example on function.__get__ needs update http://bugs.python.org/issue30530 opened by Mariano Anaya #30532: email.policy.SMTP.fold() mangles long headers http://bugs.python.org/issue30532 opened by chrisb(a)emergence.com #30533: missing feature in inspect module: getmembers_static http://bugs.python.org/issue30533 opened by carljm #30534: error message for incorrect call degraded in 3.7 http://bugs.python.org/issue30534 opened by scoder #30535: Warn that meta_path is not empty http://bugs.python.org/issue30535 opened by xmorel #30536: [EASY] SubinterpThreadingTests.test_threads_join_2() of test_t http://bugs.python.org/issue30536 opened by haypo #30537: Using PyNumber_AsSsize_t in itertools.islice http://bugs.python.org/issue30537 opened by MSeifert #30538: Functional Programming HOWTO describes one argument itertools. http://bugs.python.org/issue30538 opened by csabella #30539: Make Proactor public in asyncio.ProactorEventLoop http://bugs.python.org/issue30539 opened by jabdoa #30540: regrtest: add --matchfile option http://bugs.python.org/issue30540 opened by haypo #30541: Add restricted mocks to the python unittest mocking framework http://bugs.python.org/issue30541 opened by mariocj89 #30542: [EASY] test_files() of test_tools.test_unparse.DirectoryTestCa http://bugs.python.org/issue30542 opened by haypo #30543: test_timeout fails on AMD64 FreeBSD CURRENT Debug 3.x: Connect http://bugs.python.org/issue30543 opened by haypo #30544: _io._WindowsConsoleIO.write raises the wrong error when WriteC http://bugs.python.org/issue30544 opened by Segev Finer #30546: [EASY][Windows] test_uname_win32_ARCHITEW6432() of test_platfo http://bugs.python.org/issue30546 opened by haypo #30547: [EASY][Windows] SubinterpreterTest.test_callbacks_leak() of te http://bugs.python.org/issue30547 opened by haypo #30548: typo in documentation for create_autospec http://bugs.python.org/issue30548 opened by Erik Byström #30549: ProcessPoolExecutor hangs forever if the object raises on __ge http://bugs.python.org/issue30549 opened by Roberto Martínez #30550: Document order-preserving dictionary output in json http://bugs.python.org/issue30550 opened by lebigot #30553: Add HTTP Response code 421 http://bugs.python.org/issue30553 opened by julienc #30554: Inaccessible attribute characters_written on OSError instances http://bugs.python.org/issue30554 opened by Igor Kozyrenko (ikseek) Most recent 15 issues with no replies (15) ========================================== #30554: Inaccessible attribute characters_written on OSError instances http://bugs.python.org/issue30554 #30553: Add HTTP Response code 421 http://bugs.python.org/issue30553 #30550: Document order-preserving dictionary output in json http://bugs.python.org/issue30550 #30549: ProcessPoolExecutor hangs forever if the object raises on __ge http://bugs.python.org/issue30549 #30548: typo in documentation for create_autospec http://bugs.python.org/issue30548 #30543: test_timeout fails on AMD64 FreeBSD CURRENT Debug 3.x: Connect http://bugs.python.org/issue30543 #30539: Make Proactor public in asyncio.ProactorEventLoop http://bugs.python.org/issue30539 #30530: Descriptors HowTo: Example on function.__get__ needs update http://bugs.python.org/issue30530 #30528: ipaddress.IPv{4,6}Network.reverse_pointer is broken http://bugs.python.org/issue30528 #30525: Expose SCTs on TLS connections http://bugs.python.org/issue30525 #30521: IDLE: Add navigate bar and replace current goto dialog http://bugs.python.org/issue30521 #30519: Add daemon argument to Timer http://bugs.python.org/issue30519 #30514: test_poplib replace asyncore http://bugs.python.org/issue30514 #30512: CAN Socket support for NetBSD http://bugs.python.org/issue30512 #30510: c_bool type not supported for BigEndianStructure on little-end http://bugs.python.org/issue30510 Most recent 15 issues waiting for review (15) ============================================= #30534: error message for incorrect call degraded in 3.7 http://bugs.python.org/issue30534 #30530: Descriptors HowTo: Example on function.__get__ needs update http://bugs.python.org/issue30530 #30529: Incorrect error messages for invalid whitespaces in f-string s http://bugs.python.org/issue30529 #30526: Allow setting line_buffering on existing TextIOWrapper http://bugs.python.org/issue30526 #30519: Add daemon argument to Timer http://bugs.python.org/issue30519 #30512: CAN Socket support for NetBSD http://bugs.python.org/issue30512 #30509: Optimize calling type slots http://bugs.python.org/issue30509 #30502: Fix buffer handling of OBJ_obj2txt http://bugs.python.org/issue30502 #30501: Produce optimized code for boolean conditions http://bugs.python.org/issue30501 #30495: IDLE: modernize textview module http://bugs.python.org/issue30495 #30487: DOC: automatically create a venv and install Sphinx when runni http://bugs.python.org/issue30487 #30485: Element.findall(path, dict) doesn't insert null namespace http://bugs.python.org/issue30485 #30466: Tutorial doesn't explain the use of classes http://bugs.python.org/issue30466 #30465: FormattedValue expressions have wrong lineno and col_offset in http://bugs.python.org/issue30465 #30455: Generate C code from token.py and not vice versa http://bugs.python.org/issue30455 Top 10 most discussed issues (10) ================================= #30177: pathlib.resolve(strict=False) only includes first child http://bugs.python.org/issue30177 15 msgs #25324: Importing tokenize modifies token http://bugs.python.org/issue25324 12 msgs #30495: IDLE: modernize textview module http://bugs.python.org/issue30495 12 msgs #30509: Optimize calling type slots http://bugs.python.org/issue30509 12 msgs #30300: asyncio.Controller http://bugs.python.org/issue30300 11 msgs #30535: Warn that meta_path is not empty http://bugs.python.org/issue30535 8 msgs #30534: error message for incorrect call degraded in 3.7 http://bugs.python.org/issue30534 7 msgs #11783: email parseaddr and formataddr should be IDNA aware http://bugs.python.org/issue11783 6 msgs #30501: Produce optimized code for boolean conditions http://bugs.python.org/issue30501 6 msgs #30526: Allow setting line_buffering on existing TextIOWrapper http://bugs.python.org/issue30526 6 msgs Issues closed (41) ================== #3062: Turtle speed() function has no effect under Mac OS X http://bugs.python.org/issue3062 closed by willingc #13349: Non-informative error message in index() and remove() function http://bugs.python.org/issue13349 closed by rhettinger #16500: Allow registering at-fork handlers http://bugs.python.org/issue16500 closed by pitrou #17188: Document 'from None' in raise statement doc. http://bugs.python.org/issue17188 closed by Mariatta #20210: Support the *disabled* marker in Setup files http://bugs.python.org/issue20210 closed by xdegaye #22702: to improve documentation for join() (str method) http://bugs.python.org/issue22702 closed by rhettinger #24692: types.coroutines() idempotence documentation http://bugs.python.org/issue24692 closed by seirl #27618: docs for threading.Lock claim it's a class (since 3.3), but it http://bugs.python.org/issue27618 closed by Mariatta #29660: Document that print/format_exception ignore etype http://bugs.python.org/issue29660 closed by Mariatta #29766: --with-lto still implied by --enable-optimizations in Python 2 http://bugs.python.org/issue29766 closed by gregory.p.smith #29828: Allow registering after-fork initializers in multiprocessing http://bugs.python.org/issue29828 closed by pitrou #29960: _random.Random state corrupted on exception http://bugs.python.org/issue29960 closed by Mariatta #30216: xdrlib.Unpacker.unpack_string returns bytes (docs say should b http://bugs.python.org/issue30216 closed by serhiy.storchaka #30245: possible overflow when organize struct.pack_into error message http://bugs.python.org/issue30245 closed by xiang.zhang #30248: Using boolean arguments in the _json module http://bugs.python.org/issue30248 closed by serhiy.storchaka #30354: Change data model documentation to zero-argument super() http://bugs.python.org/issue30354 closed by Mariatta #30361: Docs example: converting mixed types to floating point http://bugs.python.org/issue30361 closed by terry.reedy #30378: SysLogHandler does not support IPv6 destinations http://bugs.python.org/issue30378 closed by xiang.zhang #30398: Add a docstring for re.error http://bugs.python.org/issue30398 closed by serhiy.storchaka #30433: Devguide lacks instructions for building docs http://bugs.python.org/issue30433 closed by Mariatta #30446: Embedded 3.6.1 distribution cannot find _socket module http://bugs.python.org/issue30446 closed by ThomasS #30468: Propagate zipfile.py pypy issue #905 patch to CPython 3.7 http://bugs.python.org/issue30468 closed by serhiy.storchaka #30470: Deprecate invalid ctypes call protection on Windows http://bugs.python.org/issue30470 closed by Mariatta #30475: Docs for PyDict_GetItemWithError() should say it returns a bor http://bugs.python.org/issue30475 closed by eric.snow #30476: Add _GenerateCRCTable() to zipfile.py to pre-compute CRC Tab http://bugs.python.org/issue30476 closed by martin.panter #30477: tuple.index error message improvement http://bugs.python.org/issue30477 closed by brett.cannon #30488: Documentation for subprocess.STDOUT needs clarification http://bugs.python.org/issue30488 closed by eryksun #30494: python.exe crashed when open long path in windows 7 http://bugs.python.org/issue30494 closed by eryksun #30496: Incomplete traceback with `exec` on SyntaxError http://bugs.python.org/issue30496 closed by stefan #30497: Line number of docstring in AST http://bugs.python.org/issue30497 closed by serhiy.storchaka #30499: Deprecated note in set documentation http://bugs.python.org/issue30499 closed by Mariatta #30503: It should be possible to use a module name with the same name http://bugs.python.org/issue30503 closed by ncoghlan #30506: Replace 'list' with 'array' in array.remove and array.index http://bugs.python.org/issue30506 closed by serhiy.storchaka #30507: Elements reports it is a list on Element.remove http://bugs.python.org/issue30507 closed by Jim Fasarakis-Hilliard #30515: unittest: assertAlmostEqual rounding error http://bugs.python.org/issue30515 closed by sam-s #30517: Enum does not recognize enum.auto as unique values http://bugs.python.org/issue30517 closed by max #30527: PyMemoryView_FromBuffer memory leak http://bugs.python.org/issue30527 closed by lazka #30531: Windows 10 3.6.1 install disallows pip installs of packages http://bugs.python.org/issue30531 closed by eryksun #30545: Enum equality across modules: comparing objects instead of val http://bugs.python.org/issue30545 closed by ethan.furman #30551: Attribute Error http://bugs.python.org/issue30551 closed by Mahira #30552: Bugs http://bugs.python.org/issue30552 closed by Mahira

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Aligning the packaging.python.org theme with the rest of the docs
by Nick Coghlan June 2, 2017

June 2, 2017

Hi folks, Over on https://github.com/pypa/python-packaging-user-guide/pull/305#issuecomment-3… we're looking to update the theming of packaging.python.org to match that of the language documentation at docs.python.org. Doing that would also entail updating the documentation of the individual tools and services (pip, pypi, setuptools, wheel, etc) to maintain consistency with the main packaging user guide, so Jon has tentatively broken the theme out as a (not yet published anywhere) "pypa-theme" package to make it easier to re-use across multiple projects. The question that occurred to me is whether or not it might make more sense to instead call that package "psf-docs-theme", to reflect that it's intended specifically for projects that are legally backed by the PSF, and that general Python projects looking for a nice, high-contrast, theme should consider using an org independent one like Alabaster instead. Thoughts? Should we stick with pypa-theme as the name? Switch to psf-docs-theme? Publish both, with pypa-theme adding PyPA specific elements to a more general psf-docs-theme? Cheers, Nick. P.S. In case folks aren't aware of the full legal arrangements here: in addition to the informal "Python Packaging Authority" designation, there's also a formally constituted PSF Packaging Working Group that provides the legal connection back to the PSF. That means the relationship between PyPA and the PSF ends up being pretty similar to the one between python-dev and the PSF, where there's no direct PSF involvement in day to day development activities, but the PSF provides the legal and financial backing needed to sustainably maintain popular community-supported software and services. Part of my rationale for suggesting the inclusion of "psf" in the package name is to make it clear that the intent would be to create a clear and distinctive "trade dress" for the documentation of directly PSF backed projects: https://en.wikipedia.org/wiki/Trade_dress#Protection_for_electronic_interfa… Future requests to use the theme (beyond CPython and the PyPA) could then be run through the PSF Trademarks committee, as with requests to use the registered marks. Whereas if we go with pypa-theme, then that would just be a non-precedent-setting agreement between PyPA and CPython to share a documentation theme, without trying to define any form of documentation trade dress for the PSF in general. -- Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia

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2017 Python Language Summit coverage -- Round 2
by Jake Edge June 2, 2017

June 2, 2017

Hola python-dev, Thanks for all the positive feedback on the coverage (and the corrections/clarifications in the comments too)! There is, it seems, always more to do, but I do have three additional articles from the summit up now and should complete the coverage over the next week. The starting point is the overview article, here: https://lwn.net/Articles/723251/ which should now be free for anyone to see (and the first four articles too). LWN subscribers can see the content right away, but one week after they are published in the weekly edition, they become freely available for everyone. Until then, though, feel free to share the SubscriberLinks I am posting here. I have been asked about our policy on appropriate places to share SubscriberLinks; blogs, tweets, social media, mailing lists, etc. are all perfectly fine with us. The new articles are: Keeping Python competitive: https://lwn.net/Articles/723949/ or https://lwn.net/SubscriberLink/723949/56a392defaae995c/ Trio and the future of asynchronous execution in Python: https://lwn.net/Articles/724082/ or https://lwn.net/SubscriberLink/724082/43c399adca8006f0/ Python ssl module update: https://lwn.net/Articles/724209/ or https://lwn.net/SubscriberLink/724209/8460ca8b51c00634/ stay tuned sometime next week for the thrilling conclusion :) jake -- Jake Edge - LWN - jake(a)lwn.net - http://lwn.net

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Re: [Python-Dev] RFC: Backport ssl.MemoryBIO and ssl.SSLObject to Python 2.7
by Ben Darnell June 1, 2017

June 1, 2017

Trying to transfer github comments from https://github.com/python/peps/pull/272#pullrequestreview-41388700: I said: > Tornado has been doing TLS in an event-loop model in python 2.5+ with just wrap_socket, no MemoryBIO necessary. What am I missing? MemoryBIO certainly gives some extra flexibility, but nothing I can see that's strictly required for an HTTP client. (Maybe it comes up in some proxy scenarios that Tornado hasn't implemented?) There were three main responses: - MemoryBIO is necessary to support TLS on windows with IOCP. Tornado's approach requires the less-efficient select() interface. This is valid and IMHO the biggest argument against using Tornado instead of Twisted in requests. Even if requests is willing to accept the limitation of not being able to use IOCP on Python 2, it may be tricky to arrange things so it can support both Tornado's select-based event loop on Python 2 and the IOCP-based interfaces in Python 3's asyncio (I'd volunteer to help with this if the requests team is interested in pursuing it, though). - wrap_socket is difficult to use correctly with an event loop; Twisted was happy to move away from it to the MemoryBIO model. My response: MemoryBIO is certainly a *better* solution for this problem, but it's not a *requirement*. Twisted prefers to do as little buffering as possible, which contributes to the difficulty of using wrap_socket. The buffering in Tornado's SSLIOStream simplifies this. Glyph reports that there are still some difficult-to-reproduce bugs; that may be but I haven't heard any other reports of this. I believe that whatever bugs might remain in this area are resolvable. - MemoryBIO supports a wider variety of transports, including pipes. There's a question about unix domain sockets - Tornado supports these generally but I haven't tried them with TLS. I would expect it to work.

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