[issue40280] Consider supporting emscripten/webassembly as a build target

Change by Christian Heimes : -- pull_requests: +28025 pull_request: https://github.com/python/cpython/pull/29789 ___ Python tracker ___

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

New submission from Ruben Vorderman : Python now uses the excellent timsort for most (all?) of its sorting. But this is not the fastest sort available for one particular use case. If the number of possible values in the array is limited, it is possible to perform a counting sort: https://en.w

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Ruben Vorderman added the comment: Also I didn't know if this should be in Component C-API or Interpreter Core. But I guess this will be implemented as C-API calls PyBytes_Sort and PyByteArray_SortInplace so I figured C-API is the correct component here. -- _

[issue40280] Consider supporting emscripten/webassembly as a build target

Change by Christian Heimes : -- dependencies: +Cross compiling on Linux is untested, undocumented, and broken, Fix Program/_freeze_module for cross compiling Python, Undefinied _Py_Sigset_Converter function when HAVE_SIGSET_T not set, ctypes cfield.c defines duplicate ffi_type_* symb

[issue45898] ctypes cfield.c defines duplicate ffi_type_* symbols

Change by Christian Heimes : -- keywords: +patch pull_requests: +28026 stage: -> patch review pull_request: https://github.com/python/cpython/pull/29791 ___ Python tracker ___

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Change by Alex Waygood : -- nosy: +Mark.Shannon, brett.cannon, rhettinger, serhiy.storchaka, tim.peters, vstinner, yselivanov ___ Python tracker ___ __

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Ruben Vorderman added the comment: I changed the cython script a bit to use a more naive implementation without memset. Now it is always significantly faster than bytes(sorted(my_bytes)). $ python -m timeit -c "from bytes_sort import bytes_sort" "bytes_sort(b'')" 50 loops, best of 5: 495

[issue39026] Include/cpython/pystate.h contains non-relative of initconfig.h include causing macOS Framework include failure

STINNER Victor added the comment: New changeset 92631a4144fba041a5fb6578620db784821dfdc5 by Victor Stinner in branch '3.9': bpo-39026: Fix Python.h when building with Xcode (GH-29488) (GH-29776) https://github.com/python/cpython/commit/92631a4144fba041a5fb6578620db784821dfdc5 -- __

[issue39026] Include/cpython/pystate.h contains non-relative of initconfig.h include causing macOS Framework include failure

STINNER Victor added the comment: Thanks Gaige Paulsen for the bug report, it's now fixed. > I think GH-28612 broke Windows builds: It was related to C++ build, it's now fixed by bpo-45893. -- resolution: -> fixed stage: patch review -> resolved status: open -> closed versions: +Pyt

[issue45876] Improve accuracy of stdev functions in statistics

Mark Dickinson added the comment: Related: https://stackoverflow.com/questions/32150888/should-ldexp-round-correctly -- ___ Python tracker ___ ___

[issue45898] ctypes cfield.c defines duplicate ffi_type_* symbols

Christian Heimes added the comment: Windows tests are failing without ffi_type_ symbols: cfield.obj : error LNK2001: unresolved external symbol _ffi_type_double [D:\a\cpython\cpython\PCbuild\_ctypes.vcxproj] cfield.obj : error LNK2001: unresolved external symbol _ffi_type_float [D:\a\cpython

[issue45884] datetime.strptime incorrectly handling hours and minutes with bad format string

Change by Christian Heimes : -- superseder: -> strptime %d handling of single digit day of month ___ Python tracker ___ ___ Python-

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

STINNER Victor added the comment: New changeset 253b7a0a9fef1d72a4cb87b837885576e68e917c by Victor Stinner in branch 'main': bpo-45866: pegen strips directory of "generated from" header (GH-29777) https://github.com/python/cpython/commit/253b7a0a9fef1d72a4cb87b837885576e68e917c --

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Ruben Vorderman added the comment: Sorry for the spam. I see I made a typo in the timeit script. Next time I will be more dilligent when making these kinds of reports and triple checking it before hand, and sending it once. I used -c instead of -s and now all the setup time is also included.

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

Change by STINNER Victor : -- pull_requests: +28027 pull_request: https://github.com/python/cpython/pull/29792 ___ Python tracker ___ __

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Mark Dickinson added the comment: Can you give example use-cases for sorting a bytes or bytearray object? I see value in the intermediate object - the frequency table, but the reconstructed sorted bytes object just seems like an inefficient representation of the frequency table, and I'm not

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Mark Dickinson added the comment: (Changing the issue type: as I understand it, this is a proposal for a new feature, namely new methods bytes.sort and bytearray.sort, rather than a performance improvement to an existing feature.) -- type: performance -> enhancement

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Ruben Vorderman added the comment: I used it for the median calculation of FASTQ quality scores (https://en.wikipedia.org/wiki/FASTQ_format). But in the end I used the frequency table to calculate the median more quickly. So as you say, the frequency table turned out to be more useful. Havi

[issue40280] Consider supporting emscripten/webassembly as a build target

Change by Roman Yurchak : -- nosy: +Roman Yurchak ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mai

[issue27580] CSV Null Byte Error

Petr Viktorin added the comment: The NUL check was around for a long time, available to be used (XKCD-1172 style) as a simple check against reading binary files. The change did break tests of distutils. Maybe it deserves a What's New entry? -- nosy: +petr.viktorin __

[issue27580] CSV Null Byte Error

Petr Viktorin added the comment: *docutils, not distutils -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue40280] Consider supporting emscripten/webassembly as a build target

Roman Yurchak added the comment: Thanks a lot for working on this! > _sys_shutdown is the syscall for shutdown(2) used by the socket module. Yes, the issue with Emscripten is that a number of system calls are either not implemented or implemented but not tested. See a list we are using in h

[issue40280] Consider supporting emscripten/webassembly as a build target

Change by Christian Heimes : -- pull_requests: +28029 pull_request: https://github.com/python/cpython/pull/29794 ___ Python tracker ___

[issue45886] Fix Program/_freeze_module for cross compiling Python

Change by Christian Heimes : -- pull_requests: +28028 pull_request: https://github.com/python/cpython/pull/29793 ___ Python tracker ___

[issue40280] Consider supporting emscripten/webassembly as a build target

Change by Christian Heimes : -- pull_requests: +28030 pull_request: https://github.com/python/cpython/pull/29795 ___ Python tracker ___

[issue45795] urllib http client vulnerable to DOS attack

Muhammad Farhan added the comment: Hi, Hope all of you are doing good. Looks like you guys are not interested in this issue. Can you please provide me the source code for yhe urllib, I will fix it myself -- ___ Python tracker

[issue40280] Consider supporting emscripten/webassembly as a build target

Christian Heimes added the comment: New changeset d224e769b83a6a027bec8e21ee62db2b96d5af8e by Christian Heimes in branch 'main': bpo-40280: clean and ignore .wasm files (GH-29794) https://github.com/python/cpython/commit/d224e769b83a6a027bec8e21ee62db2b96d5af8e -- _

[issue45898] ctypes cfield.c defines duplicate ffi_type_* symbols

Change by Roman Yurchak : -- nosy: +Roman Yurchak ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mai

[issue40280] Consider supporting emscripten/webassembly as a build target

Christian Heimes added the comment: Thanks Roman, I replied on the pyodide issue tracker. -- ___ Python tracker ___ ___ Python-bugs

[issue45760] Remove "PyNumber_InMatrixMultiply"

Dong-hee Na added the comment: New changeset db671b010cb4662011c6e6567a1f4fcd509102b8 by Dong-hee Na in branch 'main': bpo-45760: Remove PyNumber_InMatrixMultiply (GH-29751) https://github.com/python/cpython/commit/db671b010cb4662011c6e6567a1f4fcd509102b8 -- ___

[issue45760] Remove "PyNumber_InMatrixMultiply"

Change by Dong-hee Na : -- stage: patch review -> resolved status: open -> closed ___ Python tracker ___ ___ Python-bugs-list mailin

[issue45884] datetime.strptime incorrectly handling hours and minutes with bad format string

Jon Oxtoby added the comment: I was indeed overlooking the note in the documentation that the leading zero is optional for some formatters when using strptime. Closing. -- stage: -> resolved status: open -> closed ___ Python tracker

[issue40280] Consider supporting emscripten/webassembly as a build target

Change by Dong-hee Na : -- nosy: +corona10 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.pytho

[issue40280] Consider supporting emscripten/webassembly as a build target

Christian Heimes added the comment: New changeset 8caceb7a474bf32cddfd25fba25b531ff65f4365 by Christian Heimes in branch 'main': bpo-40280: Add configure check for socket shutdown (GH-29795) https://github.com/python/cpython/commit/8caceb7a474bf32cddfd25fba25b531ff65f4365 -- __

[issue45558] shutil.copytree: Give the option to disable copystat

New submission from Jason R. Coombs : Can you provide a description of what motivated you to change the behavior or what benefits this change would have for you or others? Do you know why others haven’t reported this need previously? -- nosy: +jaraco __

[issue13475] Add '--mainpath'/'--nomainpath' command line options to override sys.path[0] initialisation

Change by Neil Isaac : -- nosy: +nisaac ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.o

[issue44353] PEP 604 NewType

Change by miss-islington : -- pull_requests: +28031 pull_request: https://github.com/python/cpython/pull/29796 ___ Python tracker ___ __

[issue45903] What’s New In Python 3.11: wrong reference to Signature.from_callable

New submission from Jakub Wilk : says: "Removed from the inspect module: […] the undocumented Signature.from_callable and Signature.from_function functions, deprecated since Python 3.5; use the Signature.from_callable() method instead."

[issue44353] PEP 604 NewType

miss-islington added the comment: New changeset 3f024e27c29a57dd4f805aa2431d713ed0fe57b2 by Miss Islington (bot) in branch '3.10': bpo-44353: Correct docstring for `NewType` (GH-29785) https://github.com/python/cpython/commit/3f024e27c29a57dd4f805aa2431d713ed0fe57b2 --

[issue43137] webbrowser to support "gio open "

Christian Heimes added the comment: gio is not available on older distros. For example I could not find it in Xenial with libglib2.0-bin 2.48.2-0ubuntu4.8. I suggest that you keep the fallbacks or seek agreement that we no longer support old distros without gio. -- keywords: +3.11reg

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

STINNER Victor added the comment: New changeset b6defde2afe656db830d6fedf74ca5f6225f5928 by Victor Stinner in branch '3.10': bpo-45866: pegen strips directory of "generated from" header (GH-29777) (GH-29792) https://github.com/python/cpython/commit/b6defde2afe656db830d6fedf74ca5f6225f5928

[issue9436] test_sysconfig failure: build a 32-bit Python a 64-bit OS

Irit Katriel added the comment: This test is disabled when platform == "win32". Does that cover this case or does it need to be disabled for platform == "win64" as well? commit db902ac0b4df295bd90109852c1abd05da831b81 Author: Brian Curtin Date: Thu Jul 22 15:38:28 2010 + Skip thi

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Mark Dickinson added the comment: > If there are enough use cases for it. Well, that's the question. :-) *I* can't think of any good use cases, but maybe others can. But if we can't come up with some use cases, then this feels like a solution looking for a problem, and that makes it hard to j

[issue45876] Improve accuracy of stdev functions in statistics

Raymond Hettinger added the comment: Instead of calling float(), perhaps do an int/int division to match the other code path so that the function depends on only one mechanism for building the float result. -return float(_isqrt_frac_rto(n, m << 2 * q) << q) +(_isqrt_frac_rto(n, m <<

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

Change by STINNER Victor : -- pull_requests: +28032 pull_request: https://github.com/python/cpython/pull/29797 ___ Python tracker ___ __

[issue45795] urllib http client vulnerable to DOS attack

Senthil Kumaran added the comment: Hi Muhammad, I haven't gotten to this. urllib doesn't maintain a client state during multiple request / response. The code is available here https://github.com/python/cpython/tree/main/Lib/urllib -- ___ Python

[issue45886] Fix Program/_freeze_module for cross compiling Python

Christian Heimes added the comment: New changeset 765b2a3ad2e8abf9a06d5e9b3802b575ec115d76 by Christian Heimes in branch 'main': bpo-45886: Fix OOT build when srcdir has frozen module headers (GH-29793) https://github.com/python/cpython/commit/765b2a3ad2e8abf9a06d5e9b3802b575ec115d76 --

[issue45876] Improve accuracy of stdev functions in statistics

Mark Dickinson added the comment: [Raymond] > [...] perhaps do an int/int division to match the other code path [...] Sure, works for me. -- ___ Python tracker ___ __

[issue45903] What’s New In Python 3.11: wrong reference to Signature.from_callable

Change by Alex Waygood : -- type: -> behavior ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.p

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

STINNER Victor added the comment: New changeset 93a540d74c654819ad04d72fcdcf827d0e25 by Victor Stinner in branch '3.9': bpo-45866: pegen strips directory of "generated from" header (GH-29777) (GH-29792) (GH-29797) https://github.com/python/cpython/commit/93a540d74c654819ad04d72fcdcf827d0

[issue45904] Pasting the U00FF character into Python REPL misinterprets character

New submission from George King : Using macOS 11.6 Terminal.app with Python 3.10.0 installed directly from python.org. I open the REPL. If I enter `char(0xff)` I get back 'ÿ' as expected (U00FF LATIN SMALL LETTER Y WITH DIAERESIS). However, If I copy this character with surrounding quotes, an

[issue45904] Pasting the U00FF character into Python REPL misinterprets character

George King added the comment: Edit: `chr(0xff)` -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

STINNER Victor added the comment: It seems like all bugs reported in this issue has been fixed, so I close the issue. Thanks for the bug report ;-) > -# @generated by pegen from ./Tools/peg_generator/pegen/metagrammar.gram > +# @generated by pegen from ../../Tools/peg_generator/pegen/metagram

[issue4322] function with modified __name__ uses original name when there's an arg error

Irit Katriel added the comment: Reproduced on 3.11: >>> def foo(): pass ... >>> foo.__name__ = 'bar' >>> foo(1) Traceback (most recent call last): File "", line 1, in TypeError: foo() takes 0 positional arguments but 1 was given -- nosy: +iritkatriel versions: +Python 3.11 -Pytho

[issue45905] Provide a C API for introspectable frames for Cython and similar tools

New submission from Mark Shannon : See https://github.com/cython/cython/issues/4484 -- messages: 407069 nosy: Mark.Shannon priority: normal severity: normal status: open title: Provide a C API for introspectable frames for Cython and similar tools __

[issue45905] Provide a C API for introspectable frames for Cython and similar tools

Change by Mark Shannon : -- assignee: -> Mark.Shannon type: -> enhancement versions: +Python 3.11 ___ Python tracker ___ ___ Pytho

[issue22684] message.as_bytes() produces recursion depth exceeded

Irit Katriel added the comment: I am unable to reproduce this on 3.11. -- nosy: +iritkatriel status: open -> pending ___ Python tracker ___ ___

[issue45019] Freezing modules has manual steps but could be automated.

Guido van Rossum added the comment: New changeset b0b10e146b1cbf9c5dfa44af116a2eeb0f210e8b by Kumar Aditya in branch 'main': bpo-45019: Cleanup module freezing and deepfreeze (#29772) https://github.com/python/cpython/commit/b0b10e146b1cbf9c5dfa44af116a2eeb0f210e8b -- _

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Eric V. Smith added the comment: Given that the normal sort() machinery wouldn't use this code, I don't think there's any advantage to adding .sort() methods to bytes and bytesarray. The downside to adding these methods is the increased complexity in the stdlib. I think the better approach i

[issue32936] RobotFileParser.parse() should raise an exception when the robots.txt file is invalid

Irit Katriel added the comment: Please reopen this or create a new issue if this is still a problem and you can provide the missing information. -- resolution: -> rejected stage: -> resolved status: pending -> closed ___ Python tracker

[issue43137] webbrowser to support "gio open "

Pablo Galindo Salgado added the comment: The next 3.10 and 3.11 releases are very soon so unfortunately if this is not fixed by then I will need to revert PR29154 -- ___ Python tracker _

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

Change by STINNER Victor : -- pull_requests: +28033 pull_request: https://github.com/python/cpython/pull/29798 ___ Python tracker ___ __

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

STINNER Victor added the comment: There are other byte-like objects like memoryview or array.array (for some array types). I would suggest writing a function rather than a method. -- ___ Python tracker

[issue45902] Bytes and bytesarrays can be sorted with a much faster count sort.

Change by Brett Cannon : -- nosy: -brett.cannon ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail

[issue44452] Allow paths to be joined without worrying about a leading slash

lutecki added the comment: So how this should work? I'm testing this simple example on Windows: a = Path("/a/b") b = Path("c/d") and b / a gives me WindowsPath('/a/b'). So I'm like "ok, a seems like absolute, I will test for that" but on Windows a.is_absolute() is False. ??? Regards -

[issue45847] Port module setup to PY_STDLIB_MOD() macro and addext()

Erlend E. Aasland added the comment: Some info regarding _multiprocessing: Modules/_multiprocessing/semaphore.c is currently conditionally included in setup.py (HAVE_SEM_OPEN && !POSIX_SEMAPHORES_NOT_ENABLED), but always included in Modules/Setup. Here's some historical bpo's (more or less)

[issue45901] store app file type ignores command-line arguments

Change by Steve Dower : -- keywords: +patch pull_requests: +28034 stage: needs patch -> patch review pull_request: https://github.com/python/cpython/pull/29799 ___ Python tracker _

[issue45876] Improve accuracy of stdev functions in statistics

Mark Dickinson added the comment: Since I've failed to find a coherent statement and proof of the general principle I articulated anywhere online, I've included one below. (To be absolutely clear, the principle is not new - it's very well known, but oddly hard to find written down anywhere.)

[issue45901] store app file type ignores command-line arguments

Steve Dower added the comment: For future reference, in case someone stumbles over this issue, here's how I tested this change: * set $env:IncludeUWP="true" * did a regular PCbuild/build.bat * generated a Store layout with "./python.bat PC/layout --preset-appx --copy ./out" * mock-installed

[issue33381] [doc] Incorrect documentation for strftime()/strptime() format code %f

Change by Vishal Pandey : -- keywords: +patch nosy: +vishalpandeyvip nosy_count: 5.0 -> 6.0 pull_requests: +28035 stage: -> patch review pull_request: https://github.com/python/cpython/pull/29801 ___ Python tracker

[issue40280] Consider supporting emscripten/webassembly as a build target

Christian Heimes added the comment: New changeset 4ebde73b8e416eeb1fd5d2ca3283f7ddb534c5b1 by Christian Heimes in branch 'main': bpo-40280: Move hard-coded feature checks to configure (GH-29789) https://github.com/python/cpython/commit/4ebde73b8e416eeb1fd5d2ca3283f7ddb534c5b1 -- __

[issue26577] inspect.getclosurevars returns incorrect variable when using class member with the same name as other variable

Change by Irit Katriel : -- versions: +Python 3.11 -Python 3.5, Python 3.6 ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue25341] File mode wb+ appears as rb+

Irit Katriel added the comment: Reproduced on 3.11. -- nosy: +iritkatriel versions: +Python 3.11 -Python 2.7, Python 3.5, Python 3.6 ___ Python tracker ___ ___

[issue26577] inspect.getclosurevars returns incorrect variable when using class member with the same name as other variable

Irit Katriel added the comment: Reproduced on 3.11. -- nosy: +iritkatriel ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue45876] Improve accuracy of stdev functions in statistics

Tim Peters added the comment: Mark, ya, MS's Visual Studio's ldexp() has, far as I know, always worked this way. The code I showed was run under the 2019 edition, which we use to build the Windows CPython. Raymond, x = float(i) is screamingly obvious at first glance. x = i/1

[issue27281] unpickling an xmlrpc.client.Fault raises TypeError

Irit Katriel added the comment: Reproduced in 3.11. -- nosy: +iritkatriel versions: +Python 3.11 -Python 3.5, Python 3.6 ___ Python tracker ___ ___

[issue28422] multiprocessing Manager mutable type member access failure

Irit Katriel added the comment: I don't get any errors from the attached script. Is there still a problem here? -- nosy: +iritkatriel resolution: -> works for me status: open -> pending ___ Python tracker _

[issue45872] Turtle: invalid example for write doc

Éric Araujo added the comment: The doc for the font parameter is: a triple (fontname, fontsize, fonttype) but the default value in the signature is: font='Arial' I do not know what’s font name vs font type! Do you know if it’s valid to have font='Arial', in which case the doc should be amend

[issue45889] pathlib: Path.match does not work on paths

Éric Araujo added the comment: FWIW I think in the same way as Ronald. A pattern is not a path, it’s a string expressing rules. If it matches, the results are paths, but that does not make the pattern a path. -- nosy: +eric.araujo ___ Python tracker

[issue45898] ctypes cfield.c defines duplicate ffi_type_* symbols

Steve Dower added the comment: This is because we use libffi as a DLL and you can't statically reference dynamically loaded addresses on Windows. You could change that format table to be initialised on first use, or resolve the FFI type lazily. Or change ctypes to statically link libffi (inc

[issue45906] Python github installatiomn issue

New submission from Some User : Whenever i try to setup python3.9 configure via github, It raises a configure error. `` $ ./configure checking build system type... type checking host system type... type checking for python3.9... no checking for python3... no checking for python... no checking f

[issue45906] Python github installation issue

Change by Some User : -- title: Python github installatiomn issue -> Python github installation issue ___ Python tracker ___ ___ Pyt

[issue28422] multiprocessing Manager mutable type member access failure

Vilnis Termanis added the comment: If you un-comment the print_exc() call, you'll see that it still fails - for queue.Queue: Manager failure (for Queue) Traceback (most recent call last): File "fish.py", line 74, in main add_type_in_own_process(mgr, type_name) File "fish.py", line 61,

[issue28422] multiprocessing Manager mutable type member access failure

Irit Katriel added the comment: Version 3.8 is in security fix only mode. Is this a problem on newer versions? -- ___ Python tracker ___ __

[issue28422] multiprocessing Manager mutable type member access failure

Vilnis Termanis added the comment: Apologies, my mistake - it does indeed work with 3.9 & 3.10. Feel free to close. -- resolution: -> works for me status: open -> pending versions: +Python 3.8 ___ Python tracker

[issue28422] multiprocessing Manager mutable type member access failure

Irit Katriel added the comment: Thank you. -- stage: -> resolved status: pending -> closed ___ Python tracker ___ ___ Python-bugs-

[issue44452] Allow paths to be joined without worrying about a leading slash

Eryk Sun added the comment: > and b / a gives me WindowsPath('/a/b'). So I'm like "ok, a seems > like absolute, I will test for that" but on Windows a.is_absolute() > is False. Path.is_absolute() is true if a path has a `root` and, for a Windows path, also a `drive`. In C++, the filesystem::

[issue45876] Improve accuracy of stdev functions in statistics

Raymond Hettinger added the comment: [Tim] > Note that, on Windows, ldexp() in the presence of > denorms can truncate. Division rounds, so > >assert x / 2**i == ldexp(x, -i) > > can fail. Objects/longobject.c::long_true_divide() uses ldexp() internally. Will it suffer the same issues wi

[issue45876] Improve accuracy of stdev functions in statistics

Mark Dickinson added the comment: > Will it suffer the same issues with subnormals on Windows? No, it should be fine. All the rounding has already happened at the point where ldexp is called, and the result of the ldexp call is exact. > Is CPython int/int true division guaranteed to be corre

[issue45876] Improve accuracy of stdev functions in statistics

Tim Peters added the comment: > Objects/longobject.c::long_true_divide() uses ldexp() internally. > Will it suffer the same issues with subnormals on Windows? Doesn't look like it will. In context, looks like it's ensuring that ldexp can only lose trailing 0 bits, so that _whatever_ ldexp doe

[issue45876] Improve accuracy of stdev functions in statistics

Mark Dickinson added the comment: > All the rounding has already happened at the point where ldexp is called, and > the result of the ldexp call is exact. Sketch of proof: [Here](https://github.com/python/cpython/blob/4ebde73b8e416eeb1fd5d2ca3283f7ddb534c5b1/Objects/longobject.c#L3929) we h

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

STINNER Victor added the comment: New changeset 9a7611a7c4da6406383f8ffcea272ded6f890f1e by Victor Stinner in branch 'main': bpo-45866: Fix typo in the NEWS entry (GH-29798) https://github.com/python/cpython/commit/9a7611a7c4da6406383f8ffcea272ded6f890f1e -- ___

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

Change by miss-islington : -- pull_requests: +28037 pull_request: https://github.com/python/cpython/pull/29804 ___ Python tracker ___ __

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

Change by miss-islington : -- nosy: +miss-islington nosy_count: 4.0 -> 5.0 pull_requests: +28036 pull_request: https://github.com/python/cpython/pull/29803 ___ Python tracker _

[issue45876] Improve accuracy of stdev functions in statistics

Mark Dickinson added the comment: Concrete example of int/int not being correctly rounded on systems using x87 instructions: on those systems, I'd expect to see 1/2731 return a result of 0.00036616623947272064 (0x1.7ff4005ffd002p-12), as a result of first rounding to 64-bit precision and the

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

miss-islington added the comment: New changeset fc16ea9c8b8769af8a4c0c16fed7eba2e8bf4019 by Miss Islington (bot) in branch '3.10': bpo-45866: Fix typo in the NEWS entry (GH-29798) https://github.com/python/cpython/commit/fc16ea9c8b8769af8a4c0c16fed7eba2e8bf4019 -- _

[issue45866] Out of tree build of Python 3.11.0a2+ breaks regen-frozen

miss-islington added the comment: New changeset b3f14dacfea54332e2ddde792142d818b3554dbc by Miss Islington (bot) in branch '3.9': bpo-45866: Fix typo in the NEWS entry (GH-29798) https://github.com/python/cpython/commit/b3f14dacfea54332e2ddde792142d818b3554dbc -- __

[issue42268] ./configure failing when --with-memory-sanitizer specified

Change by Pablo Galindo Salgado : -- keywords: +patch pull_requests: +28038 stage: -> patch review pull_request: https://github.com/python/cpython/pull/29806 ___ Python tracker __

[issue21944] Allow copying of CodecInfo objects

Change by Irit Katriel : -- type: behavior -> enhancement versions: +Python 3.11 -Python 3.5 ___ Python tracker ___ ___ Python-bugs-

[issue12020] [doc] Attribute error with flush on stdout,stderr

Change by Irit Katriel : -- keywords: +easy title: Attribute error with flush on stdout,stderr -> [doc] Attribute error with flush on stdout,stderr versions: +Python 3.11 -Python 3.4, Python 3.5 ___ Python tracker

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