Mailman 3 May 2021 - Python-Dev

Can't sync cpython main to my fork
by Skip Montanaro 08 May '21

08 May '21

(Sorry, this is probably not really python-dev material, but I'm stuck trying to bring my fork into sync with python/cpython.) I don't know if I did something to my fork or if the master->main change did something to me, but I am unable to sync my smontanaro/cpython main with the python/cpython main. The dev guide gives this simple recipe: git checkout main git pull upstream main git push origin main Here's how that goes: (python39) rvm% git co main Already on 'main' Your branch is up to date with 'upstream/main'. (python39) rvm% git pull upstream main From git://github.com/python/cpython * branch main -> FETCH_HEAD Already up to date. (python39) rvm% git push origin main To github.com:smontanaro/cpython.git ! [rejected] main -> main (non-fast-forward) error: failed to push some refs to 'github.com:smontanaro/cpython.git' hint: Updates were rejected because the tip of your current branch is behind hint: its remote counterpart. Integrate the remote changes (e.g. hint: 'git pull ...') before pushing again. hint: See the 'Note about fast-forwards' in 'git push --help' for details. I looked at the fast-forward stuff in 'git push --help' but couldn't decipher what it told me, or more importantly, how it related to my problem. It's not clear to me how python/cpython:main can be behind smontanaro/cpython:main. I've attached my .git/config file in case that provides clues to the Git aficionados. Thx... Skip

8 10

Summary of Python tracker Issues
by Python tracker 08 May '21

08 May '21

ACTIVITY SUMMARY (2021-04-30 - 2021-05-07) Python tracker at https://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 7428 (-25) closed 48377 (+104) total 55805 (+79) Open issues with patches: 2946 Issues opened (48) ================== #40943: PEP 353: Drop support for PyArg_ParseTuple() "#" formats when https://bugs.python.org/issue40943 reopened by methane #43001: python3.8.9, python3.9.2 test_embed test_tabnanny failed https://bugs.python.org/issue43001 reopened by asholomitskiy84 #43176: Dataclasses derived from empty frozen bases skip immutability https://bugs.python.org/issue43176 reopened by eric.smith #43882: [security] urllib.parse should sanitize urls containing ASCII https://bugs.python.org/issue43882 reopened by gregory.p.smith #43992: Unable to get external dependencies for CPython on Ubuntu Linu https://bugs.python.org/issue43992 opened by shreyanavigyan #43994: change representation of match as / capture as `Name(..., ctx= https://bugs.python.org/issue43994 opened by Anthony Sottile #44002: Use functools.lru_cache in urllib.parse instead of 1996 custom https://bugs.python.org/issue44002 opened by gregory.p.smith #44005: multiple socket bind failure on Mac OS X with SO_REUSEADDR https://bugs.python.org/issue44005 opened by giangipy #44010: IDLE: highlight soft keywords https://bugs.python.org/issue44010 opened by epaine #44011: Borrow asyncio ssl implementation from uvloop https://bugs.python.org/issue44011 opened by asvetlov #44012: IPv6Address.exploded does not support interface name (scope id https://bugs.python.org/issue44012 opened by ohwgiles #44013: tempfile.TemporaryFile: name of file descriptor cannot be reus https://bugs.python.org/issue44013 opened by zhongxiang117 #44016: Enum related deprecation warnings in test_httpservers and test https://bugs.python.org/issue44016 opened by xtreak #44019: operator.call/operator.__call__ https://bugs.python.org/issue44019 opened by Antony.Lee #44021: enum docs in 3.10: missing "New in version 3.10" https://bugs.python.org/issue44021 opened by Akuli #44023: "tarfile" library will lead to "write any content to any file https://bugs.python.org/issue44023 opened by leveryd #44024: Improve the TypeError message for non-string second arguments https://bugs.python.org/issue44024 opened by maggyero #44025: Match doc: Clarify '_' as a soft keyword https://bugs.python.org/issue44025 opened by terry.reedy #44026: IDLE: print "Did you mean?" for AttributeError and NameError https://bugs.python.org/issue44026 opened by Dennis Sweeney #44028: Request for locals().update() to work, it is https://bugs.python.org/issue44028 opened by xuancong84 #44030: Markup with_traceback code example https://bugs.python.org/issue44030 opened by terry.reedy #44031: python3.8.9, python3.9.2 test_embed test_tabnanny failed https://bugs.python.org/issue44031 opened by asholomitskiy84 #44032: Function locals and evaluation stack should be stored in a con https://bugs.python.org/issue44032 opened by Mark.Shannon #44035: Regenerating the configure script fails even if dependencies a https://bugs.python.org/issue44035 opened by pablogsal #44036: asyncio SSL server can be DOSed, event loop gets blocked: busy https://bugs.python.org/issue44036 opened by ghost43 #44037: Broad performance regression from 3.10a7 to 3.10b1 with python https://bugs.python.org/issue44037 opened by rhettinger #44038: In documentation Section 8.6, the definition of parameter_list https://bugs.python.org/issue44038 opened by webbnh #44041: [sqlite3] optimisation: only call sqlite3_column_count when ne https://bugs.python.org/issue44041 opened by erlendaasland #44042: [sqlite3] _pysqlite_connection_begin() optimisations https://bugs.python.org/issue44042 opened by erlendaasland #44043: 3.10 b1 armhf Bus Error in hashlib test: test_gil https://bugs.python.org/issue44043 opened by Anthony Sottile #44044: ConfigParser: cannot link to ConfigParser.optionxform(option) https://bugs.python.org/issue44044 opened by jugmac00 #44045: canonicalize "upper-case" -> "uppercase"; "lower-case" -> "low https://bugs.python.org/issue44045 opened by jugmac00 #44048: test_hashlib failure for "AMD64 RHEL8 FIPS Only Blake2 Builtin https://bugs.python.org/issue44048 opened by cstratak #44050: Exceptions in a subinterpreter are changed by another subinter https://bugs.python.org/issue44050 opened by trygveaa #44052: patch object as argument should be explicit https://bugs.python.org/issue44052 opened by CendioOssman #44053: Can't connect to a server also not showing any type of output https://bugs.python.org/issue44053 opened by muqadasrasheed652 #44055: NamedTemporaryFile opened twice on Windows https://bugs.python.org/issue44055 opened by frenzy #44057: Inconsitencies in `__init_subclass__` in a generic class https://bugs.python.org/issue44057 opened by erezinman #44058: 'master' refs in 3.10 version of .azure-pipelines https://bugs.python.org/issue44058 opened by skip.montanaro #44060: Define TARGET macro the same even when computed goto support i https://bugs.python.org/issue44060 opened by skip.montanaro #44061: Regression in pkgutil: iter_modules stopped taking Path argume https://bugs.python.org/issue44061 opened by rikard.nordgren #44062: cross: wrong interpreter returned when no python available https://bugs.python.org/issue44062 opened by vfazio #44063: compiler: does not revert back the end_* locations https://bugs.python.org/issue44063 opened by BTaskaya #44065: "configure: error: internal configure error for the platform t https://bugs.python.org/issue44065 opened by sberg #44066: Conflicts while using Py_LIMITED_API https://bugs.python.org/issue44066 opened by shreyanavigyan #44067: Zipfile lib overwrites the extra field during closing when the https://bugs.python.org/issue44067 opened by shaanbhaya #44068: Possible divide by zero problems https://bugs.python.org/issue44068 opened by yiyuaner #44069: pathlib.Path.glob's generator is not a real generator https://bugs.python.org/issue44069 opened by Elijah Rippeth Most recent 15 issues with no replies (15) ========================================== #44069: pathlib.Path.glob's generator is not a real generator https://bugs.python.org/issue44069 #44063: compiler: does not revert back the end_* locations https://bugs.python.org/issue44063 #44062: cross: wrong interpreter returned when no python available https://bugs.python.org/issue44062 #44060: Define TARGET macro the same even when computed goto support i https://bugs.python.org/issue44060 #44058: 'master' refs in 3.10 version of .azure-pipelines https://bugs.python.org/issue44058 #44053: Can't connect to a server also not showing any type of output https://bugs.python.org/issue44053 #44042: [sqlite3] _pysqlite_connection_begin() optimisations https://bugs.python.org/issue44042 #44041: [sqlite3] optimisation: only call sqlite3_column_count when ne https://bugs.python.org/issue44041 #44038: In documentation Section 8.6, the definition of parameter_list https://bugs.python.org/issue44038 #44036: asyncio SSL server can be DOSed, event loop gets blocked: busy https://bugs.python.org/issue44036 #44032: Function locals and evaluation stack should be stored in a con https://bugs.python.org/issue44032 #44024: Improve the TypeError message for non-string second arguments https://bugs.python.org/issue44024 #44023: "tarfile" library will lead to "write any content to any file https://bugs.python.org/issue44023 #44019: operator.call/operator.__call__ https://bugs.python.org/issue44019 #44013: tempfile.TemporaryFile: name of file descriptor cannot be reus https://bugs.python.org/issue44013 Most recent 15 issues waiting for review (15) ============================================= #44063: compiler: does not revert back the end_* locations https://bugs.python.org/issue44063 #44062: cross: wrong interpreter returned when no python available https://bugs.python.org/issue44062 #44061: Regression in pkgutil: iter_modules stopped taking Path argume https://bugs.python.org/issue44061 #44060: Define TARGET macro the same even when computed goto support i https://bugs.python.org/issue44060 #44042: [sqlite3] _pysqlite_connection_begin() optimisations https://bugs.python.org/issue44042 #44041: [sqlite3] optimisation: only call sqlite3_column_count when ne https://bugs.python.org/issue44041 #44030: Markup with_traceback code example https://bugs.python.org/issue44030 #44026: IDLE: print "Did you mean?" for AttributeError and NameError https://bugs.python.org/issue44026 #44025: Match doc: Clarify '_' as a soft keyword https://bugs.python.org/issue44025 #44024: Improve the TypeError message for non-string second arguments https://bugs.python.org/issue44024 #44016: Enum related deprecation warnings in test_httpservers and test https://bugs.python.org/issue44016 #44012: IPv6Address.exploded does not support interface name (scope id https://bugs.python.org/issue44012 #44011: Borrow asyncio ssl implementation from uvloop https://bugs.python.org/issue44011 #44010: IDLE: highlight soft keywords https://bugs.python.org/issue44010 #44002: Use functools.lru_cache in urllib.parse instead of 1996 custom https://bugs.python.org/issue44002 Top 10 most discussed issues (10) ================================= #43882: [security] urllib.parse should sanitize urls containing ASCII https://bugs.python.org/issue43882 25 msgs #43976: Allow Python distributors to add custom site install schemes https://bugs.python.org/issue43976 19 msgs #44026: IDLE: print "Did you mean?" for AttributeError and NameError https://bugs.python.org/issue44026 16 msgs #43916: Mark static types newly converted to heap types as immutable: https://bugs.python.org/issue43916 15 msgs #44011: Borrow asyncio ssl implementation from uvloop https://bugs.python.org/issue44011 12 msgs #43983: Can't install Python v3.9.4 / 0x80070643 / windows 10 64bit https://bugs.python.org/issue43983 10 msgs #44010: IDLE: highlight soft keywords https://bugs.python.org/issue44010 10 msgs #37903: IDLE Shell sidebar. https://bugs.python.org/issue37903 9 msgs #43994: change representation of match as / capture as `Name(..., ctx= https://bugs.python.org/issue43994 9 msgs #44043: 3.10 b1 armhf Bus Error in hashlib test: test_gil https://bugs.python.org/issue44043 8 msgs Issues closed (99) ================== #9725: urllib.request.FancyURLopener won't connect to pages requiring https://bugs.python.org/issue9725 closed by orsenthil #11466: getpass.getpass doesn't close tty file https://bugs.python.org/issue11466 closed by orsenthil #12441: _GLOBAL_DEFAULT_TIMEOUT remains as an object() in HTTPConnecti https://bugs.python.org/issue12441 closed by orsenthil #27823: Change bare AttributeError messages to be more informative https://bugs.python.org/issue27823 closed by abarry #28556: typing.py upgrades https://bugs.python.org/issue28556 closed by Jelle Zijlstra #29753: [Linux] ctypes packs bitfields Incorrectly https://bugs.python.org/issue29753 closed by jaraco #30164: Testing FTP support in urllib shouldn't use Debian FTP server https://bugs.python.org/issue30164 closed by orsenthil #32745: ctypes string pointer fields should accept embedded null chara https://bugs.python.org/issue32745 closed by lukasz.langa #32752: no information about accessing typing.Generic type arguments https://bugs.python.org/issue32752 closed by Jelle Zijlstra #34568: Types in `typing` not anymore instances of `type` or subclasse https://bugs.python.org/issue34568 closed by Jelle Zijlstra #36515: unaligned memory access in the _sha3 extension https://bugs.python.org/issue36515 closed by christian.heimes #38135: Depth first search in compile.c creates wrong BB order for cer https://bugs.python.org/issue38135 closed by Mark.Shannon #38352: In typing docs, note explicit import needed for IO and Pattern https://bugs.python.org/issue38352 closed by lukasz.langa #39934: Fatal Python error "XXX block stack overflow" when exception s https://bugs.python.org/issue39934 closed by iritkatriel #40297: test_socket.CANTest is broken at HEAD on master https://bugs.python.org/issue40297 closed by zach.ware #40397: Refactor typing._GenericAlias https://bugs.python.org/issue40397 closed by Jelle Zijlstra #40617: sqlite3: expose sqlite3_create_window_function https://bugs.python.org/issue40617 closed by erlendaasland #41100: Support macOS 11 and Apple Silicon Macs https://bugs.python.org/issue41100 closed by ned.deily #41116: build on macOS 11 (beta) does not find system-supplied third-p https://bugs.python.org/issue41116 closed by ned.deily #41277: documentation: os.setxattr() errno EEXIST and ENODATA https://bugs.python.org/issue41277 closed by eric.smith #41730: Show deprecation warnings for tkinter.tix https://bugs.python.org/issue41730 closed by wyz23x2 #42001: Deprecate `typing.io` Wrapper Namespace https://bugs.python.org/issue42001 closed by Jelle Zijlstra #42067: Type annotation in for-loops https://bugs.python.org/issue42067 closed by kj #42083: PyStructSequence_NewType broken in 3.8 https://bugs.python.org/issue42083 closed by kj #42235: [macOS] Use --enable-optimizations in build-installer.py https://bugs.python.org/issue42235 closed by ned.deily #42269: Add ability to set __slots__ in dataclasses https://bugs.python.org/issue42269 closed by eric.smith #42362: Switch to clang as default compiler in build-installer.py https://bugs.python.org/issue42362 closed by ned.deily #42504: Failure to build with MACOSX_DEPLOYMENT_TARGET=11 on Big Sur https://bugs.python.org/issue42504 closed by ned.deily #42686: include built-in Math functions in SQLite to 3.35.0 of march 2 https://bugs.python.org/issue42686 closed by lukasz.langa #42688: ctypes memory error on Apple Silicon with external libffi https://bugs.python.org/issue42688 closed by ned.deily #42800: Traceback objects allow accessing frame objects without trigge https://bugs.python.org/issue42800 closed by steve.dower #43006: Changed behaviour of inspect.signature() in Python 3.10 https://bugs.python.org/issue43006 closed by Zac Hatfield-Dodds #43054: What does the existence of a struct in a header file imply abo https://bugs.python.org/issue43054 closed by Mark.Shannon #43075: ReDoS in urllib.request https://bugs.python.org/issue43075 closed by ned.deily #43354: xmlrpc.client: Fault.faultCode erroneously documented to be a https://bugs.python.org/issue43354 closed by jugmac00 #43434: sqlite3.Connection(...) bypasses 'sqlite3.connect' audit hooks https://bugs.python.org/issue43434 closed by steve.dower #43490: IDLE freezes at random https://bugs.python.org/issue43490 closed by ned.deily #43568: Drop support for Mac OS X < 10.3 module linking https://bugs.python.org/issue43568 closed by ned.deily #43733: PEP 597: netrc uses locale encoding. https://bugs.python.org/issue43733 closed by methane #43743: BlockingIOError: [Errno 11] Resource temporarily unavailable: https://bugs.python.org/issue43743 closed by gregory.p.smith #43754: Eliminate bindings for partial pattern matches https://bugs.python.org/issue43754 closed by brandtbucher #43794: OpenSSL 3.0.0: Handle UNEXPECTED_EOF_WHILE_READING / wrap SSL_ https://bugs.python.org/issue43794 closed by christian.heimes #43815: documentation for types.new_class() mention misleading default https://bugs.python.org/issue43815 closed by eric.smith #43878: ./configure fails on Apple Silicon with coreutils uname https://bugs.python.org/issue43878 closed by keith #43880: 3.10 SSL module deprecations https://bugs.python.org/issue43880 closed by christian.heimes #43888: GitHub Actions CI/CD `Coverage` job is broken on master https://bugs.python.org/issue43888 closed by ammar2 #43926: Clean metadata (importlib_metadata 4.0) https://bugs.python.org/issue43926 closed by jaraco #43930: Update bundled pip to 21.1 and setuptools to 56.0.0 https://bugs.python.org/issue43930 closed by sbidoul #43935: Fix typo in Turtle.back docstring https://bugs.python.org/issue43935 closed by terry.reedy #43937: Turtle uses the default root window https://bugs.python.org/issue43937 closed by terry.reedy #43942: RawDescriptionHelpFormatter seems to be ignored for argument d https://bugs.python.org/issue43942 closed by rrt #43953: InitVar should not be available on a @dataclass-decorated clas https://bugs.python.org/issue43953 closed by eric.smith #43957: [Enum] update __contains__ to return True for valid values https://bugs.python.org/issue43957 closed by ethan.furman #43971: documentation: no spacing around default args in annotated fun https://bugs.python.org/issue43971 closed by mdk #43972: Simple HTTP Request Handler in http.server does not set a cont https://bugs.python.org/issue43972 closed by orsenthil #43977: Implement the latest semantics for PEP 634 for matching collec https://bugs.python.org/issue43977 closed by Mark.Shannon #43978: Incorrect "versionadded" info in typing.NoReturn documentation https://bugs.python.org/issue43978 closed by kj #43979: Simplify urllib.parse_qsl https://bugs.python.org/issue43979 closed by corona10 #43981: test_idle is leaking references https://bugs.python.org/issue43981 closed by pablogsal #43982: Code coverage on the CI: validate codecov shell script checksu https://bugs.python.org/issue43982 closed by ammar2 #43985: lib2to3 fails on a slash('/') after positional_only paramter i https://bugs.python.org/issue43985 closed by cloud-yu #43987: Add "Annotations Best Practices" to HOWTO https://bugs.python.org/issue43987 closed by larry #43989: Enum deprecation breaks SSL tests https://bugs.python.org/issue43989 closed by christian.heimes #43990: In documentation Section 6.17, Operator precedence, footnotes https://bugs.python.org/issue43990 closed by rhettinger #43991: asyncio lock does not get released after task is canceled https://bugs.python.org/issue43991 closed by a.niederbuehl #43993: Update bundled pip to 21.1.1 https://bugs.python.org/issue43993 closed by sbidoul #43995: test_grammar fails if run sequentially https://bugs.python.org/issue43995 closed by pablogsal #43996: Doc for mutable sequence pop() method implies argument is a sl https://bugs.python.org/issue43996 closed by rhettinger #43997: dataclasses documentation needs version added for match_args, https://bugs.python.org/issue43997 closed by eric.smith #43998: Increase security of TLS settings in 3.10 https://bugs.python.org/issue43998 closed by christian.heimes #43999: Cannot pickle frozen dataclasses with slots https://bugs.python.org/issue43999 closed by eric.smith #44000: Current PY_VERSION 3.10.0a7+ does not conform to PEP 440 https://bugs.python.org/issue44000 closed by Cyril Jouve #44001: typing.Literal: args must be hashable, not immutable https://bugs.python.org/issue44001 closed by kj #44003: functools.lru_cache omits __defaults__ attribute from wrapped https://bugs.python.org/issue44003 closed by gregory.p.smith #44004: test_nntplib is failing in all buildbots https://bugs.python.org/issue44004 closed by christian.heimes #44006: symbol documentation still exists https://bugs.python.org/issue44006 closed by mdk #44007: urlparse("host:123", "http") inconsistent between 3.8 and 3.9 https://bugs.python.org/issue44007 closed by arcivanov #44008: os.walk and other directory traversal does not handle recursiv https://bugs.python.org/issue44008 closed by eryksun #44009: Provide "python3.x-intel64" command with macOS universal2 fram https://bugs.python.org/issue44009 closed by ned.deily #44014: Fix error in Enum documentation. https://bugs.python.org/issue44014 closed by lukasz.langa #44015: dataclasses: it should be an error to specify KW_ONLY twice https://bugs.python.org/issue44015 closed by eric.smith #44017: Deprecation warning in tests over no current event loop https://bugs.python.org/issue44017 closed by corona10 #44018: random.seed mutates input bytearray https://bugs.python.org/issue44018 closed by rhettinger #44020: test_ssl fails in the macos CI https://bugs.python.org/issue44020 closed by terry.reedy #44022: urllib http client possible infinite loop on a 100 Continue re https://bugs.python.org/issue44022 closed by gregory.p.smith #44027: Python 3.9 UWP does not create key in PythonCore https://bugs.python.org/issue44027 closed by steve.dower #44029: PEP 624: Remove Py_UNICODE APIs https://bugs.python.org/issue44029 closed by methane #44033: Adding multiple keys of the same name to a dict doesn't raise https://bugs.python.org/issue44033 closed by shreyanavigyan #44034: Incorrect type casting of float into int https://bugs.python.org/issue44034 closed by tim.peters #44039: Duplicated assignment in Modules/_randommodule.c https://bugs.python.org/issue44039 closed by rhettinger #44040: Update broken link in pathlib source https://bugs.python.org/issue44040 closed by matrixise #44046: When writing to the Registry using winreg, it currently allows https://bugs.python.org/issue44046 closed by eryksun #44047: [sqlite3] remove unused argument from _pysqlite_seterror() https://bugs.python.org/issue44047 closed by berker.peksag #44049: Use C99 Variable-length array if possible https://bugs.python.org/issue44049 closed by corona10 #44051: Virtualalloc wrong return type https://bugs.python.org/issue44051 closed by eryksun #44054: 2**53+1 != float(2**53+1) https://bugs.python.org/issue44054 closed by mark.dickinson #44056: Incorrect line number for syntax error. https://bugs.python.org/issue44056 closed by Mark.Shannon #44059: Support SerenityOS Browser in webbrowser module https://bugs.python.org/issue44059 closed by gregory.p.smith #44064: Python39/lib/logging/__init__.py SyntaxError: cannot delete st https://bugs.python.org/issue44064 closed by kathleenwest

1 0

Documenting collections.abc __class_getitem__ type hints
by Paul Bryan 06 May '21

06 May '21

I'm looking through the documentation, and not finding any good reference for type hints for __class_getitem__ in the collections.abc module. I do see some of it covered in the typing module documentation, but those are deprecated, and some are somewhat cryptic (e.g. Coroutine). Make sense to open a BPO and start a PR for doc updates? Paul

2 2

PEP 654: Exception Groups and except* [REPOST]
by Irit Katriel 06 May '21

06 May '21

We would like to present for feedback a new version of PEP 654, which incorporates the feedback we received in the discussions so far: https://www.python.org/dev/peps/pep-0654/ The reference implementation has also been updated along with the PEP. The changes we made since the first post are: 1. Instead of ExceptionGroup(BaseException), we will have two new builtin types: BaseExceptionGroup(BaseException) and ExceptionGroup(BaseExceptionGroup, Exception). This is so that "except Exception" catches ExceptionGroups (but not BaseExceptionGroups). BaseExceptionGroup.__new__ inspects the wrapped exceptions, and if they are all Exception subclasses, it creates an ExceptionGroup instead of a BaseExceptionGroup. 2. The exception group classes are not final - they can be subclassed and split()/subgroup() work correctly if the subclass overrides the derive() instance method as described here: https://www.python.org/dev/peps/pep-0654/#subclassing-exception-groups 3. We had some good suggestions on formatting exception groups, which we have implemented as you can see in the output shown for the examples in the PEP. 4. We expanded the section on handling Exception Groups, to show how subgroup can be used (with side effects) to do something for each leaf exception, and how to iterate correctly when the tracebacks of leaf exceptions are needed: https://www.python.org/dev/peps/pep-0654/#handling-exception-groups 5. We expanded the sections on rationale and backwards compatibility to explain our premise and expectations regarding how exception groups will be used and how the transition to using them will be managed. 6. We added several items to the rejected ideas section. We did not receive any comments (or make any changes) to the proposed semantics of except*, hopefully this is because everyone thought they are sensible. Irit, Yury and Guido

14 45

Anyone else gotten bizarre personal replies to mailing list posts?
by Nathaniel Smith 05 May '21

05 May '21

I just got the reply below sent directly to my personal account, and I'm confused about what's going on. If it's just a one off I'll chalk it up to random internet weirdness, but if other folks are getting these too it might be something the list admins should look into? Or... something? ---------- Forwarded message --------- From: Hoi lam Poon <gillcovid19(a)gmail.com> Date: Fri, Apr 23, 2021, 02:01 Subject: Re: [Python-Dev] Re: PEP 654: Exception Groups and except* [REPOST] To: Nathaniel Smith <njs(a)pobox.com> Stop pretending, I can definitely get the key control file, your working group, all past actions and instructions cannot be cleared in front of me at all. You have been playing around for a few days, and I won’t stop you. Your face? I won’t, you know, you can’t drive me away, and that file is all, after I get it, you will be convicted even if you disband, I swear 在 2021年4月23日週五 16:23，Nathaniel Smith <njs(a)pobox.com> 寫道： > On Wed, Apr 21, 2021 at 4:50 PM Guido van Rossum <guido(a)python.org> wrote: > > On Wed, Apr 21, 2021 at 3:26 PM Nathaniel Smith <njs(a)pobox.com> wrote: > >> Sure. This was in my list of reasons why the backwards compatibility > >> tradeoffs are forcing us into awkward compromises. I only elaborated > >> on it b/c in your last email you said you didn't understand why this > >> was a problem :-). And except* is definitely useful. But I think there > >> are options for 'except' that haven't been considered fully. > > > > Do you have any suggestions, or are you just telling us to think harder? > Because we've already thought as hard as we could and within all the > constraints (backwards compatibility and otherwise) we just couldn't think > of a better one. > > The main possibility that I don't think we've examined fully is to > make 'except' blocks fire multiple times when there are multiple > exceptions. We ruled it out early b/c it's incompatible with nested > EGs, but if flat EGs are better anyway, then the balance shifts around > and it might land somewhere different. it's a tricky discussion > though, b/c both the current proposal and the alternative have very > complex implications and downsides. So we probably shouldn't get too > distracted by that until after the flat vs nested discussion has > settled down more. > > I'm not trying to filibuster here -- I really want some form of EGs to > land. I think python has the potential to be the most elegant and > accessible language around for writing concurrent programs, and EGs > are a key part of that. I don't want to fight about anything; I just > want to work together to make sure we have a full picture of our > options, so we can be confident we're making the best choice. > > > The real cost here is that we would need a new "TracebackGroup" concept, > since the internal data structures and APIs keep the traceback chain and > the exception object separated until the exception is caught. In our early > design stages we actually explored this and the complexity of the data > structures was painful. We eventually realized that we didn't need this > concept at all, and the result is much clearer, despite what you seem to > think. > > I'm not talking about TracebackGroups (at least, I think I'm not?). I > think it can be done with exactly our current data structures, nothing > new. > > - When an EG is raised, build the traceback for just that EG while > it's unwinding. This means if any C code peeks at exc_info while it's > in flight, it'll only see the current branch of the traceback tree, > but that seems fine. > - When the exception is caught and we go to write back the traceback > to its __traceback__ attribute, instead "peek through" the EG and > append the built-up traceback entries onto each of the constituent > exceptions. > > You could get cleverer for efficiency, but that basic concept seems > pretty simple and viable to me. What am I missing? > > -n > > -- > Nathaniel J. Smith -- https://vorpus.org > _______________________________________________ > Python-Dev mailing list -- python-dev(a)python.org > To unsubscribe send an email to python-dev-leave(a)python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/VOBOWZG… > Code of Conduct: http://python.org/psf/codeofconduct/ >

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github and dependabot
by Ethan Furman 04 May '21

04 May '21

I have two pull requests against my cpython fork from a dependabot -- what is that, and should I merge them? -- ~Ethan~

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[Release manager team communication] master blocked until 3.10 beta 1 is released
by Pablo Galindo Salgado 04 May '21

04 May '21

Hi everyone, Unfortunately, the CI for master is currently quite unstable and he had some problems that we have been fixing all weekend and today. We are doing our best to stabilize the test suite and making sure that everything is ready to go for the release with no issues, but this will take some time (also bear in mind that today is a bank holiday in the UK, so I am doing my best to get the release ready in a holiday). Given this and the fact that we need to do a branch rename, **we have decided to block the master branch** until we can stabilize the test suite. In the meantime, if you have some urgent fix or PR that you absolutely need to get merge before feature freeze, you can add me as a reviewer to said PR so we can evaluate the merge. Thanks for your understanding. I will update once master is unblocked again. Regards from cloudy London, Pablo Galindo Salgado

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Re: Announcing the CPython Docs Workgroup
by Raymond Hettinger 03 May '21

03 May '21

That seems exclusionary. Right now, anyone can contribute to documentation, anyone can comment on proposals, and any core dev can accept their patches. In the interest of transparency, can you explain why the other initial members did not need to go through an application process? ISTM the initial group excludes our most active documentation contributors and includes people who have only minimal contributions to existing documentation and mostly have not participated in any documentation reviews on the issue tracker. Did the SC approve all the initial members? Raymond

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Existing asyncio features scheduled for removal in Python 3.9 and 3.10
by Illia Volochii 03 May '21

03 May '21

Hi everyone, There are a couple of uncompleted asyncio feature removals scheduled for 3.9 and 3.10 releases. It will be great if we either complete them or reschedule before the 3.10 feature freeze. There are two stale pull requests related to this. Removal of @asyncio.coroutine in version 3.10 deprecated since version 3.8 Documentation: https://docs.python.org/3.10/library/asyncio-task.html#asyncio.coroutine Issue deprecating the decorator: https://bugs.python.org/issue36921 Issue for the removal: https://bugs.python.org/issue43216 There is no pull request yet, mainly because of an unclarified question regarding types.coroutine in 36921. Prohibiting non-ThreadPoolExecutor in loop.set_default_executor Warning scheduling the prohibiting in version 3.9: https://github.com/python/cpython/blob/425434dadc30d96dc1c0c628f954f9b6f5ed… Issue: https://bugs.python.org/issue43234 Stale pull request: https://github.com/python/cpython/pull/24540 Prohibiting previously deprecated operations on asyncio.trsock.TransportSocket Warning scheduling the prohibiting in version 3.9: https://github.com/python/cpython/blob/425434dadc30d96dc1c0c628f954f9b6f5ed… Issue: https://bugs.python.org/issue43232 Stale pull request: https://github.com/python/cpython/pull/24538 Thanks, Illia

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Re: Python release timeline plot
by Irit Katriel 02 May '21

02 May '21

This is just what I needed, thanks! I’m in the process of preparing a presentation for my team at Bank of America about how the dev lifecycle of our system (Quartz risk platform) interplays with the dev lifecycle of Python (and how we can do better). I will use this. > On 2 May 2021, at 08:33, Michał Górny <mgorny(a)gentoo.org> wrote: > > Hi, > > I've been working on visualizing some data on Python in Gentoo, and made > a timeline of Python releases as a side result. I've figured some of > you might be interested, so I've decided to share it. The result: > > https://mgorny.pl/python-timeline.html > > Script: https://github.com/mgorny/gpyutils/blob/master/timeline.py > Data: https://github.com/mgorny/gpyutils/blob/master/timeline.toml > > I've (roughly) covered the versions between 2.5 and 3.10 (2.5 is > the oldest I've seen during my time in Gentoo, also the timeline's > gotten narrow already). > > dev covers the period between start of development and first alpha. > alpha goes from a1 to b1, beta from b1 to rc1, rc from rc1 to final. > stable goes to the last bugfix release, and security from that until > the last security release. > > A few notes: > > 1. The data is cut off to the right, and for technical reasons this > means tooltips will display early end dates. > > 2. The right-most data is based on approximate dates where schedules > aren't precise, esp. 3.10 assumes 'approximately 18 months' for stable > status. > > 3. Start of development is only mentioned in the newest schedules. For > older versions, I've took the data of the commit changing PYTHON_VERSION > in configure.{ac,in} (which seems to match start of development in newer > schedules). > > 4. Where data on last bugfix release wasn't available in schedules, I've > looked through release notes. > > 5. I've deliberately skipped dev period for 2.5 not to overstretch it to > the left. > > If you see any mistakes, please let me know. > > -- > Best regards, > Michał Górny > > > _______________________________________________ > Python-Dev mailing list -- python-dev(a)python.org > To unsubscribe send an email to python-dev-leave(a)python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/CLSHKQA… > Code of Conduct: http://python.org/psf/codeofconduct/

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