[issue42889] Incorrect behavior of Python parser after ast node of test program being modified

Xinmeng Xia added the comment: Nice suggestion! I change the argument and I can' find segfault program in transforming ast.Name. But I do find a segfault program in transforming ast.BinOp! Seeing the following example, this program will cause a segmentation fault on Python 3.10. No error w

[issue42880] ctypes: variadic function call still doesn't work on Apple Silicon

Ziqiao Kong added the comment: Hello, we do a clean reinstallation of Big Sur 11.1. The problem still exists: with brew-installed python3.9 ``` qiling@kamino /tmp % DYLD_PRINT_LIBRARIES=1 python3.9 test_main.py [...] dyld: loaded: <52918C9B-7E0B-3852-AB19-F74846BCAAF8> /Users/qiling/brew/Cell

[issue42880] ctypes: variadic function call still doesn't work on Apple Silicon

Ronald Oussoren added the comment: AFAIK you should specify the types of the fixed arguments for variadic functions. The ABI for the M1 has a different calling convention of the variadic arguments, the ctypes implementation counts how many variadic arguments there are based on the specified

[issue42880] ctypes: variadic function call still doesn't work on Apple Silicon

Ziqiao Kong added the comment: I retry my cases with types specified and it works indeed. Maybe the documents should be updated for this case. Thanks a lot! -- ___ Python tracker __

[issue42899] Regression __bool__ if AttributeError is raised (Possible regression introduced by bpo-42615)

Change by STINNER Victor : -- title: Possible regression introduced by bpo-42615 -> Regression __bool__ if AttributeError is raised (Possible regression introduced by bpo-42615) ___ Python tracker __

[issue42903] optimize lru_cache for functions with no arguments

Change by STINNER Victor : -- nosy: -vstinner ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.p

[issue42882] Restarting the interpreter causes UB on 3.10.0a4

STINNER Victor added the comment: New changeset 44bf57aca627bd11a08b12fe4e4b6a0e1d268862 by Victor Stinner in branch 'master': bpo-42882: _PyRuntimeState_Init() leaves unicode next_index unchanged (GH-24193) https://github.com/python/cpython/commit/44bf57aca627bd11a08b12fe4e4b6a0e1d268862 -

[issue42882] Restarting the interpreter causes UB on 3.10.0a4

Change by STINNER Victor : -- pull_requests: +23024 pull_request: https://github.com/python/cpython/pull/24198 ___ Python tracker ___ __

[issue42882] Restarting the interpreter causes UB on 3.10.0a4

STINNER Victor added the comment: Thanks for your bug report, and thanks for testing alpha versions of Python! It's now fixed. But I didn't feel comfortable without a regression test. So I wrote PR 24198 to add an unit test on _PyUnicode_FromId() with multiple Python initializations. --

[issue42902] a python embedded program may load "C:\Lib\os.py" on windows system

STINNER Victor added the comment: The reference documentation for the Python Path Configuration can be found at: https://docs.python.org/dev/c-api/init_config.html#python-path-configuration Currently, Py_SetPath(path) indirectly sets the following PyConfig members: * prefix = "" * exec_prefix

[issue42899] Regression __bool__ if AttributeError is raised (Possible regression introduced by bpo-42615)

Serhiy Storchaka added the comment: I am not sure that it should be fixed. We already cut corners in similar cases and did this for years, and it always was okay. In the following example bool(a) is only called once: if a and b: f() 1 0 LOAD_NAME0 (a)

[issue42902] a python embedded program may load "C:\Lib\os.py" on windows system

STINNER Victor added the comment: Python has an unit test on Py_SetPath(): test_embed.test_init_setpath. > Write following code that only call Py_Initialize(): (...) Do you mean that on Windows Python looks for modules in C:\Lib\ just by calling Py_Initialize()? > According to https://doc

[issue42902] a python embedded program may load "C:\Lib\os.py" on windows system

Paul Moore added the comment: I thought that *all* versions of Python located the standard library by searching for os.py... -- ___ Python tracker ___ ___

[issue42902] a python embedded program may load "C:\Lib\os.py" on windows system

STINNER Victor added the comment: > I thought that *all* versions of Python located the standard library by > searching for os.py... The current implementation of the Python Path Configuration can be found in: * Windows: PC/getpathp.c * Unix: Modules/getpath.c It should be skipped if Py_Set

[issue42882] Restarting the interpreter causes UB on 3.10.0a4

STINNER Victor added the comment: New changeset 11d13e83abedabba12b28773317f1a365113e7af by Victor Stinner in branch 'master': bpo-42882: Add test_embed.test_unicode_id_init() (GH-24198) https://github.com/python/cpython/commit/11d13e83abedabba12b28773317f1a365113e7af -- __

[issue42762] infinite loop resulted by "yield"

Steve Stagg added the comment: I don't believe this is a bug. You've discovered a nasty corner-case, but I think it's expected behaviour. There is a PEP open to make this behaviour a bit nicer: https://www.python.org/dev/peps/pep-0533/ The fact that older Python 3.5/6 versions don't get t

[issue42882] Restarting the interpreter causes UB on 3.10.0a4

STINNER Victor added the comment: Ok, now I can safely close the issue ;-) -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker _

[issue42906] python3 -m doctest test.py tests the stdlib "time" module instead

New submission from Stijn van Drongelen : I have two files, named time.py and time_.py, with the same contents: def foo(): """Returns 1. >>> foo() 1 """ return 1 When I run python3 -m doctest -v time_.py I see the expected behaviour: Tryi

[issue42906] python3 -m doctest test.py tests the stdlib "time" module instead

Stijn van Drongelen added the comment: Reproducible in Python 3.8.7 and 3.9.1. -- versions: +Python 3.8, Python 3.9 ___ Python tracker ___

[issue42907] Division betwen float and 100 not giving corect result

New submission from Dimo Yordanov : To replicate what i think is a bug you need a python interpreter in any version. I think. When i type 2.7/100 it returns 0.027003, but it actually is 0.027 and 2.8/100 returns 0.027997. And i don't know why -- components: Int

[issue42907] Division betwen float and 100 not giving corect result

Dimo Yordanov added the comment: And it appears that these are the only numbers (2.8 and 2.7) that behave like this -- ___ Python tracker ___

[issue42907] Division betwen float and 100 not giving corect result

Christian Heimes added the comment: This is the expected behavior for float. Python's floats are IEEE 754 double precision floats, not arbitrary preciscion floats. See https://docs.python.org/3/tutorial/floatingpoint.html -- nosy: +christian.heimes resolution: -> not a bug stage: -

[issue42907] Division betwen float and 100 not giving corect result

Dimo Yordanov added the comment: understandable. have a great day -- components: -Interpreter Core resolution: not a bug -> status: closed -> open versions: -Python 3.7 ___ Python tracker

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Mark Shannon added the comment: The issue here is: Is it legal to convert if x: pass into pass ? The explicit effect of the code is unchanged, BUT the implicit effect (of calling x.__bool__) is changed. The examples Serhiy gives are similar. If `bool(a)` evaluates to False, then `boo

[issue42908] Incorrect line numbers at end of try-except and with statements containing if False: pass

New submission from Mark Shannon : The following examples produce incorrect line numbers, due to cleanup code not being marked as artificial def f(): try: if False: pass except: X def g(a): with a: if False: pass -

[issue42907] Division betwen float and 100 not giving corect result

Change by Christian Heimes : -- resolution: -> not a bug status: open -> closed ___ Python tracker ___ ___ Python-bugs-list mailing

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Steve Stagg added the comment: To be super pedantic, as per my understanding of: "6.11 ... The expression x and y first evaluates x; if x is false, its value is returned; otherwise, y is evaluated and the resulting value is returned." The only corner that was previously cut is that in this s

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Steve Stagg added the comment: I got my and/or logic inverted, but believe the point still stands -- ___ Python tracker ___ ___ Pyt

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Erlend Egeberg Aasland added the comment: I can throw up the PoC branch as a draft PR after GH-24135 is merged. We can just close the PR if this is uninteresting or something we want to postpone. -- ___ Python tracker

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Serhiy Storchaka added the comment: Thank you Steve. Yes, this is what I meant. "if a and b" is so common that we sacrifice literal translation for the sake of performance. "if" with an empty block looks pretty uncommon to me. It is not worth to optimize this case specially (especially if it

[issue42904] get_type_hints does not provide localns for classes

Ken Jin added the comment: > Fidget-Spinner, are you interested in taking this? Sure thing! Please give me some time to look at it - I don't really use the runtime type validation stuff from typing (I usually defer that to 3rd party libraries), so I need to familiarize myself first. ---

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Berker Peksag added the comment: I don't see any reason to merge GH-24135 if we are going to remove cache.[ch] in this issue. I was -0 before but since Raymond gave his +1, you can count me as +1 too. -- ___ Python tracker

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Erlend Egeberg Aasland added the comment: > I don't see any reason to merge GH-24135 if we are going to remove cache.[ch] > in this issue. Yes, I've thought about that myself. A small argument pro merging GH-24135 would be that if we for some reason decide to revert this change, then cache.

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Berker Peksag added the comment: We can always reopen GH-24135 and merge it even if we revert this one for some reason :) -- ___ Python tracker ___ __

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Erlend Egeberg Aasland added the comment: True that :) I'll close GH-24135 for now and open a PR for this later today. -- ___ Python tracker ___ __

[issue41490] Update bundled pip to 20.2.1 and setuptools to 49.2.1

Julien Palard added the comment: Question: Why do we keep setuptools? According to PEP453: > Once pip is able to run pip install --upgrade pip without needing setuptools > installed first, then the private copy of setuptools will be removed from > ensurepip in subsequent CPython releases.

[issue42909] Email header with ; ; ; ; stuffing takes very long to parse

New submission from robin : Attached please find a script which takes on the order of 1 minute to parse even though the embedded message is reasonably trivial. The main flaw is that the Content-Type: header has a long string of redundant which is something some spammers apparently use t

[issue42905] Issue while installing numba inside fastparquet

Steve Stagg added the comment: Hi Sachit I see you raised this issue with the numba library here: https://github.com/numba/numba/issues/6630 I would recommend sticking with the numba issue unless they can confirm there is an issue with core python -- nosy: +stestagg ___

[issue42905] Issue while installing numba inside fastparquet

Serhiy Storchaka added the comment: Neither numba nor fastparquet are parts of the standard Python library. Please use corresponding bug trackers. -- nosy: +serhiy.storchaka resolution: -> third party stage: -> resolved status: open -> closed ___

[issue42880] ctypes: variadic function call still doesn't work on Apple Silicon

Ronald Oussoren added the comment: I agree that this should be mentioned in the documentation for ctypes. -- ___ Python tracker ___ ___

[issue42880] ctypes: variadic function call still doesn't work on Apple Silicon

Change by Ronald Oussoren : -- assignee: -> docs@python components: +Documentation nosy: +docs@python ___ Python tracker ___ ___ Py

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Serhiy Storchaka added the comment: I do not like using _functools._lru_cache_wrapper. It is a deep implementation detail, private function of private module. Use functools.lru_cache. If it is few nanoseconds slower, that cost is only added at connection creation time. It is insignificant in

[issue25235] EmailMessage.add_attachment() creates parts with spurious MIME-Version header.

robin added the comment: Duplicate of https://bugs.python.org/issue11021 but this one is more current and has a patch. -- nosy: +eriker ___ Python tracker ___ ___

[issue11021] email MIME-Version headers for each part in multipart message

robin added the comment: Propose to close as duplicate of https://bugs.python.org/issue25235 -- nosy: +eriker ___ Python tracker ___ __

[issue42909] Email header with ; ; ; ; stuffing takes very long to parse

robin added the comment: python -mtrace -t repro.py reveals a long string of these: --- modulename: errors, funcname: __init__ errors.py(85): super().__init__(*args, **kw) --- modulename: errors, funcname: __init__ errors.py(37): if line is not None: errors.py(38):

[issue42843] What min_sphinx for Python 3.10

Change by Dong-hee Na : -- nosy: +corona10, vstinner ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://

[issue28937] str.split(): allow removing empty strings (when sep is not None)

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

[issue25077] Compiler warnings: initialization from incompatible pointer type

Irit Katriel added the comment: Issues 22038 and 23085 seem to have fixed all these warnings between them. -- nosy: +iritkatriel resolution: -> out of date stage: -> resolved status: open -> closed ___ Python tracker

[issue16615] gcc 4.7 unused-but-set warnings

Irit Katriel added the comment: Is this about the pre-version 3.3 warnings? If so it can be closed. -- nosy: +iritkatriel status: open -> pending ___ Python tracker ___ __

[issue16615] gcc 4.7 unused-but-set warnings

STINNER Victor added the comment: We are now dealing with GCC 11 warnings, I close this issue. Moreover, the GCC warnings are not mentioned. -- nosy: +vstinner resolution: -> out of date stage: -> resolved status: pending -> closed ___ Python tra

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Mark Shannon added the comment: The question still stands. Is converting `if x: pass` to `pass` legal? And, if it is not, is converting if a and b: body to if a: if b: body a legal transformation? (ignoring line numbers) If the first transformation is not allowed but th

[issue41994] Refcount issues in import

Petr Viktorin added the comment: New changeset 4db8988420e0a122d617df741381b0c385af032c by Serhiy Storchaka in branch 'master': bpo-41994: Fix refcount issues in Python/import.c (GH-22632) https://github.com/python/cpython/commit/4db8988420e0a122d617df741381b0c385af032c -- nosy: +pe

[issue42910] Wrong code appears in the type alias introduction

New submission from Casuall : I learned about type aliases on the page（https://docs.python.org/3/library/typing.html）, and I found that following the code (Vector = list[float])in the tutorial, an error occurred (NameError: name 'typing' is not defined) when running. The following code has th

[issue40052] Incorrect pointer alignment in _PyVectorcall_Function() of cpython/abstract.h

Petr Viktorin added the comment: New changeset 187f76def8a5bd0af7ab512575cad30cfe624b05 by Petr Viktorin in branch '3.8': [3.8] bpo-40052: Fix alignment issue in PyVectorcall_Function() (GH-23999) (GH-24120) https://github.com/python/cpython/commit/187f76def8a5bd0af7ab512575cad30cfe624b05

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Serhiy Storchaka added the comment: For the latter, it was decided that it is legal a long time ago. It has a benefit and we did not have any complains for all these years. The absent of this optimization would encourage writing less readable code for performance. For the former, what is the

[issue41994] Refcount issues in import

Serhiy Storchaka added the comment: Thank you Petr! -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue42910] Wrong code appears in the type alias introduction

Serhiy Storchaka added the comment: What version of Python did you use? This is a documentation for Python 3.9. -- nosy: +serhiy.storchaka ___ Python tracker ___ _

[issue42911] Addition chains for pow saves 10 % time!

New submission from Jurjen N.E. Bos : When looking at the code of pow() with integer exponent, I noticed there is a hard boundary between the binary and "fiveary" (actually 32-ary) computations. Also, the fiveary wasn't really optimal. So I wrote a proof of concept version of long_pow that dy

[issue42843] What min_sphinx for Python 3.10

STINNER Victor added the comment: > Some distribs may want/need to ship Python 3.10 along with Sphinx 2? In my experience, Linux distributions prefer to only ship a single Sphinx version. The question is more which Linux distributions are stuck at Sphinx 2 only? If there is a short list of

[issue42874] running configure on Solaris 10 gives grep "illegal option" errors

Change by Paul Ganssle : -- keywords: +patch pull_requests: +23025 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24200 ___ Python tracker ___ ___

[issue42874] running configure on Solaris 10 gives grep "illegal option" errors

Paul Ganssle added the comment: This particular grep statement is used to validate the `tzpath` variable. Apparently it is easy enough to achieve what I was going for using vanilla grep with no options, so I've created GH-24200 to fix the issue. I notice that there are other uses of `-q` and

[issue42904] get_type_hints does not provide localns for classes

Change by Ken Jin : -- keywords: +patch pull_requests: +23026 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24201 ___ Python tracker ___

[issue42903] optimize lru_cache for functions with no arguments

Eugene Toder added the comment: @cache does not address the problem or any of the concerns brought up in the thread. Thread-safe @once is a nice idea, but more work of course. -- ___ Python tracker

[issue42874] running configure on Solaris 10 gives grep "illegal option" errors

Martin Wheatley added the comment: I'll do the test it happens with a plain ./configure Many thanks Martin On Tue, 12 Jan 2021 at 15:11, Paul Ganssle wrote: > > Paul Ganssle added the comment: > > This particular grep statement is used to validate the `tzpath` variable. > Apparently it is

[issue42910] Wrong code appears in the type alias introduction

Casuall added the comment: I am using python3.8, it turned out to be a version issue, sorry -- 原始邮件 -- 发件人: "Python tracker"

[issue42874] running configure on Solaris 10 gives grep "illegal option" errors

Martin Wheatley added the comment: I'll do the test it happens with a plain ./configure Many thanks Martin On Tue, 12 Jan 2021 at 15:11, Paul Ganssle wrote: > > Paul Ganssle added the comment: > > This particular grep statement is used to validate the `tzpath` variable. > Apparently it is

[issue42910] Wrong code appears in the type alias introduction

Change by Casuall : -- stage: -> resolved status: open -> closed ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscri

[issue42908] Incorrect line numbers at end of try-except and with statements containing if False: pass

Change by Mark Shannon : -- keywords: +patch pull_requests: +23027 stage: -> patch review pull_request: https://github.com/python/cpython/pull/24202 ___ Python tracker ___ ___

[issue24650] Error in yield expression documentation

Change by Irit Katriel : -- keywords: +easy versions: +Python 3.10 -Python 3.3, Python 3.4, Python 3.5, Python 3.6 ___ Python tracker ___ __

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Guido van Rossum added the comment: Can we translate 'if x: pass' into 'pass'? No, because calling its __bool__ method may have a side effect (as we saw at the start of this thread). Can we eliminate a lone 'x'? Only if it's a local variable and we're *sure* (because of control flow analysis

[issue42911] Addition chains for pow saves 10 % time!

Change by Guido van Rossum : -- nosy: +mark.dickinson, tim.peters ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscri

[issue42889] Incorrect behavior of Python parser after ast node of test program being modified

Guido van Rossum added the comment: Yeah, there's supposed to be a checker. -- nosy: +lys.nikolaou, serhiy.storchaka ___ Python tracker ___ ___

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Mark Shannon added the comment: They aren't quite the same. If `a` is falsey, and bool(a) has a side-effect, then that side-effect should occur twice in: if a and b: ... but only once in if a: if b: ... It gets more interesting (silly), if `a.__bool__()` alternated between T

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Change by Mark Shannon : -- priority: normal -> release blocker ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe

[issue42843] What min_sphinx for Python 3.10

STINNER Victor added the comment: Ah, the issue is also being discussed in PR 24142 comments. -- ___ Python tracker ___ ___ Python-

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Ethan Furman added the comment: If an optimization changes semantics it's not an optimization. In `if x: pass` how do we know `x` is falsely without calling `bool()` on it? --- On a slightly different note, in the code: if a and b: ... why is `bool(a)` called twice? --

[issue41116] build on macOS 11 (beta) does not find system-supplied third-party libraries

seb added the comment: I tried that before, also with your command, without success. I saw that the CFLAGS includes weren't forwarded to the compiler - I don't know if that is only an issue here on my system. So instead I modified the setup.py and added the directory manually. It now works.

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Mark Shannon added the comment: It's clearer if you rewrite if a and b: ... as tmp = a and b if tmp: ... if a is falsey then bool(a) gets called in `tmp = a and b` and `a` is assigned to `tmp`. Then in `if tmp`, bool(a) is called again. I agree with you about it not being an optim

[issue42843] What min_sphinx for Python 3.10

STINNER Victor added the comment: * Fedora 33 (stable) ships python3-sphinx 3.2.1-1 and python3.10 version 3.10.0~a3-1 (the alpha4 is under tests). * Debian Buster (stable) ships python3-sphinx 1.8.4-1 and python3 version 3.7.3-1 * Debian Sid (unstable) ships python3-sphinx 3.4.3-1 and python

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Mark Shannon added the comment: > How do we know `x` is falsey without calling `bool()` on it? We don't, but in `if x: pass`, it doesn't matter. Discounting side-effects in __bool__, the code does nothing regardless of the value of `x`. -- ___ Pyt

[issue42843] What min_sphinx for Python 3.10

Change by STINNER Victor : -- versions: +Python 3.10 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://

[issue42843] What min_sphinx for Python 3.10

STINNER Victor added the comment: There is a PPA on Ubuntu for Python 3.10. The PPA maintainer considers the drop the documentation, see discussion at: https://github.com/python/cpython/pull/23620#issuecomment-755423140 -- ___ Python tracker

[issue42902] a python embedded program may load "C:\Lib\os.py" on windows system

Eryk Sun added the comment: > I still don't understand if the issue involves Py_SetPath() or not. It seems to me that this issue is concerned with the default behavior that looks for the "lib/os.py" landmark via search_for_prefix() in PC/getpathp.c. Starting at the image path, it searches fo

[issue42902] a python embedded program may load "C:\Lib\os.py" on windows system

STINNER Victor added the comment: Hum. The code in Python 3.8 is complicated. When Py_SetPath() is called, Python starts by computing the Python Path Configuration because of: /* Getting the program full path calls pathconfig_global_init() */ wchar_t *program_full_path = _PyMem_RawWcs

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Gregory P. Smith added the comment: If the body of a conditional does nothing, it seems fine to optimize the condition out to me. But I see code from a low level compiled language perspective where that is clearly what would happen. In reality, who ever meaningfully writes code where the b

[issue33066] raise an exception from multiple positions break the traceback frames

Irit Katriel added the comment: See this documentation of with_traceback() regarding an API to set the traceback on an exception object. https://docs.python.org/3/library/exceptions.html#BaseException.with_traceback -- resolution: -> not a bug stage: -> resolved status: open -> clo

[issue42899] Is it legal to eliminate tests of a value, when that test has no effect on control flow?

Guido van Rossum added the comment: Hm, I hadn't realized the issue of bool(a) being evaluated once or twice. The most important side effect that bool(a) can have is raising (as e.g. numpy arrays do), not producing random results. Another important side effect might be loading some value int

[issue41620] Python Unittest does not return results object when the test is skipped

Irit Katriel added the comment: The justification on the PR is: "The problem is that when I'm trying to collect test results if one of the tests is being skipped the error below pops up because test_result object is None. AttributeError: 'NoneType' object has no attribute 'testsRun'" which

[issue42874] running configure on Solaris 10 gives grep "illegal option" errors

miss-islington added the comment: New changeset 0f66498fd8ee8644be6df963b86a1523f6069ddd by Paul Ganssle in branch 'master': bpo-42874: Remove grep -qE options for Solaris 10 compatibility (GH-24200) https://github.com/python/cpython/commit/0f66498fd8ee8644be6df963b86a1523f6069ddd -

[issue42906] python3 -m doctest test.py tests the stdlib "time" module instead

Guido van Rossum added the comment: Sorry, this is not a bug. The builtin time module takes precedence in this case because the current directory is not put at the front of the module search path (sys.path). As a workaround you could exportPYTHONPATH=. -- nosy: +gvanrossum resolutio

[issue42906] python3 -m doctest test.py tests the stdlib "time" module instead

Guido van Rossum added the comment: Whoops, I meant export PYTHONPATH=. -- ___ Python tracker ___ ___ Python-bugs-list mailing lis

[issue15373] copy.copy() does not properly copy os.environment

Change by Irit Katriel : -- components: +Library (Lib) versions: +Python 3.10 -Python 3.7 ___ Python tracker ___ ___ Python-bugs-lis

[issue42911] Addition chains for pow saves 10 % time!

Jurjen N.E. Bos added the comment: Some more information for the interested: The algorithm I made tries to smoothly change the"chunk size" with growing length of the exponent. So the exponents that win the most (up to 14% fewer multiplication) are the long exponents that are just shorter than

[issue42911] Addition chains for pow saves 10 % time!

Change by Serhiy Storchaka : -- nosy: +serhiy.storchaka ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https

[issue42862] Use functools.lru_cache iso. _sqlite.Cache in sqlite3 module

Erlend Egeberg Aasland added the comment: > I do not like using _functools._lru_cache_wrapper. It is a deep > implementation detail, private function of private module. Use > functools.lru_cache. All right, thanks. -- ___ Python tracker

[issue42912] enum.Flag ~ bitwise negation is very slow

Change by Kevin Chen : -- nosy: aspin2 priority: normal severity: normal status: open title: enum.Flag ~ bitwise negation is very slow versions: Python 3.8 ___ Python tracker _

[issue42912] enum.Flag ~ bitwise negation is very slow

New submission from Kevin Chen : Ignore this, opened issue by accident -- stage: -> resolved status: open -> closed ___ Python tracker ___

[issue1635741] Py_Finalize() doesn't clear all Python objects at exit

Petr Viktorin added the comment: In GH-23598, PyModule_AddObjectRef was added as EXPORT_DATA. Shouldn't it be EXPORT_FUNC? -- ___ Python tracker ___ ___

[issue42913] asyncio.ProactorEventLoop mishandles signal wakeup file descriptor

New submission from Michel Hidalgo : asyncio.ProactorEventLoop uses a socket.socketpair and signal.set_wakeup_fd to wake up a loop that's polling I/O. However it does so with no consideration for file descriptors previously set (i.e. no signal number forwarding). Either by user code or by ano

[issue42848] asyncio produces an unexpected traceback with recursive __getattribute__

Guido van Rossum added the comment: New changeset 6dfd1734f5b230bb8fbd2a9df806c1333b6652a8 by Irit Katriel in branch 'master': bpo-42848: remove recursion from TracebackException (GH-24158) https://github.com/python/cpython/commit/6dfd1734f5b230bb8fbd2a9df806c1333b6652a8 -- ___

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