[Python-Dev] raising a io exception when fileno is requested on a tarfile FileInFile
makap...@gmail.com writes: > When you call extractfile() on a TarFile, the result is a buffered > version of a _FileInFile pseudo-file. When fileno() is called on > this resulting file, fileno() it not exist (understandably) and an > AttributeError is raised. I would like to suggest raising an > io.UnsupportedOperation instead, so that file would act more like > other file-like objects. I have no opinion on the suggestion itself, but it's well-formulated and plausible. That said, it's a clear backward incompatibility because code currently expecting AttributeError exceptions won't catch this (unless io.UnsupportedOperation is derived from AttributeError), so it will have to wait until the next feature release for sure, and might need a deprecation cycle. I suggest that you file an issue on the GitHub tracker so it won't get lost, and post it to this thread. Steve ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/XQBM7MMDZ5Z6KIEY4JIYSCEPUWVBC5FT/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: Should the definition of an "(async) iterator" include __iter__?
FYI I opened https://github.com/python/cpython/pull/29170 to loosen/correct the definition of "iterator", but I got push-back on the PR and this thread never reached a clear conclusion. As such I'll ask the SC to make a call. ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/EKPXVWPBUS4AGPDTBEEVV7VNMMDUZ4LW/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: Oh wow, this is really impressive
The last thing Py which got a from me was pip's caching mechanism when installing packages! ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/2KBC6XWFH5S6ONMY25XCZZRDASHWY3RS/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Summary of Python tracker Issues
ACTIVITY SUMMARY (2021-10-22 - 2021-10-29) 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: open7249 (+50) closed 50157 (+46) total 57406 (+96) Open issues with patches: 2868 Issues opened (77) == #45235: argparse does not preserve namespace with subparser defaults https://bugs.python.org/issue45235 reopened by paul.j3 #45396: Custom frozen modules get ignored. https://bugs.python.org/issue45396 reopened by eric.snow #45563: inspect.getframeinfo() doesn't handle frames without lineno https://bugs.python.org/issue45563 reopened by lemburg #45578: Missing tests for the dis module https://bugs.python.org/issue45578 opened by nanjekyejoannah #45580: argparse.ArgumentParser.add_mutually_exclusive_group : metavar https://bugs.python.org/issue45580 opened by AbcSxyZ #45581: [sqlite3] raise MemoryError if sqlite3_open_v2() returns SQLIT https://bugs.python.org/issue45581 opened by erlendaasland #45582: Rewrite getpath.c in Python https://bugs.python.org/issue45582 opened by steve.dower #45584: Clarifying truncating in documentation https://bugs.python.org/issue45584 opened by Arthur-Milchior #45585: Gzipping subprocess output produces invalid .gz file https://bugs.python.org/issue45585 opened by mherrmann.at #45587: argparse add_argument_group: distinguish title and description https://bugs.python.org/issue45587 opened by SelfAdjointOperator #45588: cached_method similar to cached_property to cache with classes https://bugs.python.org/issue45588 opened by martenlienen #45589: webbrowser does not handle opens under Windows WSL properly https://bugs.python.org/issue45589 opened by guido.fioravantti #45590: distutils: Upload failed (400): Invalid value for blake2_256_d https://bugs.python.org/issue45590 opened by jwilk #45592: NamespaceLoader does not implement create_module or exec_modul https://bugs.python.org/issue45592 opened by FFY00 #45593: SpooledTemporaryFile.truncate returns None https://bugs.python.org/issue45593 opened by rooter #45594: Feature Request: add EHOSTUNREACH subclass to ConnectionError https://bugs.python.org/issue45594 opened by ntc2 #45597: os.path.realpath returns invalid path for junction pointing to https://bugs.python.org/issue45597 opened by grv87 #45598: setup.py grep_headers_for() is broken by design https://bugs.python.org/issue45598 opened by christian.heimes #45599: Please officially support %G, %V and %u directives in time lib https://bugs.python.org/issue45599 opened by Raphael #45600: First sentence in docs for os.environ https://bugs.python.org/issue45600 opened by andrei.avk #45602: The grammar misses links that are present everywhere else https://bugs.python.org/issue45602 opened by Arthur-Milchior #45606: pathlib.Path.glob() does not list dangling symlink when patter https://bugs.python.org/issue45606 opened by raek #45607: Make it possible to enrich an exception's error message https://bugs.python.org/issue45607 opened by iritkatriel #45609: Specialize STORE_SUBSCR https://bugs.python.org/issue45609 opened by Dennis Sweeney #45610: Cookies with longer paths are listed before cookies with short https://bugs.python.org/issue45610 opened by IYism #45611: pprint - low width overrides depth folding https://bugs.python.org/issue45611 opened by iansedano #45613: [sqlite3] set threadsafety attribute based on default SQLite t https://bugs.python.org/issue45613 opened by erlendaasland #45614: traceback of exception with non-unicode __module__ https://bugs.python.org/issue45614 opened by iritkatriel #45615: Missing test for type of error when printing traceback for non https://bugs.python.org/issue45615 opened by iritkatriel #45616: Python Launcher Matches 3.10 instead of 3.1 https://bugs.python.org/issue45616 opened by Marsfan #45617: sys.stdin does not iterate correctly on '\r' line separator https://bugs.python.org/issue45617 opened by kbrazil #45618: Documentation builds fail with Sphinx 3.2.1 https://bugs.python.org/issue45618 opened by Maciej Olko #45619: Mentioning structural pattern matching in the list of binding https://bugs.python.org/issue45619 opened by Arthur-Milchior #45622: BlockingIOError: [Errno 11] Resource temporarily unavailable w https://bugs.python.org/issue45622 opened by florinspatar #45623: static build is broken https://bugs.python.org/issue45623 opened by egorpugin #45625: Add support for top-level await https://bugs.python.org/issue45625 opened by Fred #45626: Email part with content type message is multipart. https://bugs.python.org/issue45626 opened by jdhowroyd #45630: Dump CodeObject API for debugging https://bugs.python.org/issue45630 opened by penguin_wwy #45631: missing unittests for overlapping dest when using subparsers https://bugs.python.org/issue45631 opened by paul.j3 #45632: Strange readline save history
[Python-Dev] Re: Oh wow, this is really impressive
I am glad you like it :) I have been told that this is a very popular improvement. I promise to keep looking for similar things in the future! Regards from cloudy London, Pablo Galindo Salgado On Fri, 29 Oct 2021, 18:23 Steven D'Aprano, wrote: > I was using Python 3.10 and got this NameError when I mistyped a name: > > NameError: name 'KeyboardInterrupted' is not defined. Did you mean: > 'KeyboardInterrupt'? > > It even works for attribute errors too. > > That's fantastic! This is a really amazing useability improvement, thank > you everyone who was involved! I literally squeed :-) > > I just may spend a few days deliberately mistyping names in the REPL > just to see this :-) > > > -- > Steve > ___ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@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/2CUCVKZ44IYCW5QRV4CMVC7YDYBCJFYG/ > Code of Conduct: http://python.org/psf/codeofconduct/ > ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/BNXWMJDHBSBLCAMIRM4WY7O2YWXCJR6V/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Oh wow, this is really impressive
I was using Python 3.10 and got this NameError when I mistyped a name: NameError: name 'KeyboardInterrupted' is not defined. Did you mean: 'KeyboardInterrupt'? It even works for attribute errors too. That's fantastic! This is a really amazing useability improvement, thank you everyone who was involved! I literally squeed :-) I just may spend a few days deliberately mistyping names in the REPL just to see this :-) -- Steve ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/2CUCVKZ44IYCW5QRV4CMVC7YDYBCJFYG/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: PEP 3118 C APIs
Hi Joannah,
On Thu, 21 Oct 2021 13:00:11 -0300
Joannah Nanjekye wrote:
> Last year I opened the following issues, to implement
> int PyObject_CopyToObject() and PyObject *PyObject_GetMemoryView(PyObject
> *obj).
>
> They were meant to be as part of PEP 3118, I wonder if they are worth an
> effort now.
>
> https://bugs.python.org/issue39835
> https://bugs.python.org/issue39836
1) PyObject_GetMemoryView: would it do something different than
PyMemoryView_FromObject()?
2) PyObject_CopyToObject: I admit I don't really understand the use
case. Besides the fact that the naming is confusing ("object copy to
object"?), it seems either PyBuffer_FromContiguous() or
PyBuffer_ToContiguous() should help implement similar functionality.
Regards
Antoine.
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[Python-Dev] raising a io exception when fileno is requested on a tarfile FileInFile
Hi, When you call extractfile() on a TarFile, the result is a buffered version of a _FileInFile pseudo-file. When fileno() is called on this resulting file, fileno() it not exist (understandably) and an AttributeError is raised. I would like to suggest raising an io.UnsupportedOperation instead, so that file would act more like other file-like objects. ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/JP4EYNRQOZ6PSEVYUJKS5HBHDR6VSKWF/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: Naming convention for AST types
Hey, as public mailing list mistakes go, that one's pretty mild. //arry/ On 10/28/21 6:35 PM, Jeremiah Vivian wrote: Sorry for the two replies, I didn't think the first one would be sent. ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/DNZMANF45N6WGGWYYN5JIQ67IDTCIL4Q/ Code of Conduct: http://python.org/psf/codeofconduct/ ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/EZBJIT4CYPVYRCBCPB2VA5PE2SB4OEI2/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: Python multithreading without the GIL
> > Did you try running the same code with stock Python? > > One reason I ask is the IIUC, you are using numpy for the individual > vector operations, and numpy already releases the GIL in some > circumstances. > I had not run the same code with stock Python (but see below). Also, I only used numpy for two bits: 1. I use numpy arrays filled with random values, and the output array is also a numpy array. The vector multiplication is done in a simple for loop in my vecmul() function. 2. Early on I compared my results with the result of numpy.matmul just to make sure I had things right. That said, I have now run my example code using both PYTHONGIL=0 and PYTHONGIL=1 of Sam's nogil branch as well as the following other Python3 versions: * Conda Python3 (3.9.7) * /usr/bin/python3 (3.9.1 in my case) * 3.9 branch tip (3.9.7+) The results were confusing, so I dredged up a copy of pystone to make sure I wasn't missing anything w.r.t. basic execution performance. I'm still confused, so will keep digging. It would also be fun to see David Beezley’s example from his seminal talk: > > https://youtu.be/ph374fJqFPE > Thanks, I'll take a look when I get a chance. Might give me the excuse I need to wake up extra early and tag along with Dave on an early morning bike ride. Skip ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/YZYJIDFH6Y3YCD3LCBQPRDQXN2JGJA7N/ Code of Conduct: http://python.org/psf/codeofconduct/
[Python-Dev] Re: PEP 670: Convert macros to functions in the Python C API
On Wed, 20 Oct 2021 02:55:52 +0200 Victor Stinner wrote: > > Debug build > --- > > When Python is built in debug mode, most compiler optimizations are > disabled. For example, Visual Studio disables inlining. Benchmarks must > not be run on a Python debug build, only on release build: using LTO and > PGO is recommended for reliable benchmarks. PGO helps the compiler to > decide if function should be inlined or not. So what is the performance impact on debug builds? The numbers should be given in the PEP. > Rejected Ideas > == > > Keep macros, but fix some macro issues > -- > > Converting macros to functions is not needed to `remove the return > value`_: casting a macro return value to ``void`` also fix the issue. > For example, the ``PyList_SET_ITEM()`` macro was already fixed like > that. > > Macros are always "inlined" with any C compiler. > > The duplication of side effects can be worked around in the caller of > the macro. > > People using macros should be considered "consenting adults". People who > feel unsafe with macros should simply not use them. This says that the idea is rejected, but it does not say *why* it was rejected. Can you add that? Regards Antoine. ___ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@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/F57647TKEQLXX7JXAHUVCFWHUMU3SW2N/ Code of Conduct: http://python.org/psf/codeofconduct/
