[issue24546] sequence index bug in random.choice

Changes by Raymond Hettinger : -- assignee: rhettinger -> ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http

[issue24550] maxint on 64 bit platforms breaks os.read

New submission from Brian Mingus: The lower range for this bug may be anything greater than 32 bit maxint. Other modules such as multiprocessing are limited passing objects of size 32 bit maxint, even on 64 bit systems, likely due to this issue. I have demonstrated this by modifying multiproce

[issue24546] sequence index bug in random.choice

Tim Peters added the comment: FYI, where x = 1.0 - 2.**-53, I believe it's easy to show this under IEEE double precision arithmetic: For every finite, normal, double y > 0.0, IEEE_multiply(x, y) < y under the default (nearest/even) rounding mode. That implies int(x*i) < i for every

[issue24548] Broken link in the unittest documentation

Changes by Ned Deily : -- nosy: +ezio.melotti, michael.foord, rbcollins stage: -> needs patch type: enhancement -> versions: +Python 2.7, Python 3.4, Python 3.6 ___ Python tracker

[issue24540] Documentation about skipkeys parameter for json.dumps is incorrect

Ned Deily added the comment: Can you say where you are seeing this? The current 2.7 documentation for json reads: "If skipkeys is True (default: False), then dict keys that are not of a basic type (str, unicode, int, long, float, bool, None) will be skipped instead of raising a TypeError."

[issue24537] Py_Initialize unable to load the file system codec

Changes by Ned Deily : -- components: +Windows -Extension Modules nosy: +paul.moore, steve.dower, tim.golden, zach.ware ___ Python tracker ___ ___

[issue24546] sequence index bug in random.choice

Tim Peters added the comment: > random() may return 1.0 exactly That shouldn't be possible. Although the code does assume C doubles have at least 53 bits of mantissa precision (in which case it does arithmetic that's exact in at least 53 bits - cannot round up to 1.0; but _could_ round up if

[issue24515] docstring of isinstance

Steven D'Aprano added the comment: Closing. If anyone thinks the docs aren't clear enough, and has an alternate version they would like to suggest, you can re-open it. -- resolution: -> rejected status: open -> closed ___ Python tracker

[issue24546] sequence index bug in random.choice

Steven D'Aprano added the comment: Your example of int(0.5) returning 1 is misleading, because 0.999...95 is already 1.0. (1.0 - 1/2**53) = 0. is the nearest float distinguishable from 1.0. It seems to me that either random() may return 1.0 exactly (although I'v

[issue24547] What’s New In Python 3.4: stray "("

Roundup Robot added the comment: New changeset 74e75a9aa562 by Benjamin Peterson in branch '3.4': remove stray '(' (closes #24547) https://hg.python.org/cpython/rev/74e75a9aa562 -- nosy: +python-dev resolution: -> fixed stage: -> resolved status: open -> closed ___

[issue24549] string.format() should have a safe_substitute equivalent, to be run consecutively

Steven D'Aprano added the comment: I don't think that this behaviour is desirable, certainly not by default. If I write "{1} {0}".format('one') that's clearly a programming error and I should get an exception. Chaining a second .format method call afterwards does not make the first one any les

[issue24549] string.format() should have a safe_substitute equivalent, to be run consecutively

Eric V. Smith added the comment: So let's say your function would be named "safe_format". Then: "{1} {0}".safe_format('one') would give: "{1} one". Then: "{1} one".safe_format('two') would be an error, because there's no index "1" in the args tuple. I can't imagine how you'd implement this

[issue18597] On Windows sys.stdin.readline() doesn't handle Ctrl-C properly

eryksun added the comment: In Windows 10 ReadFile doesn't set ERROR_OPERATION_ABORTED (995) for Ctrl+C when reading console input, but ReadConsole does. >>> from ctypes import * >>> kernel32 = WinDLL('kernel32', use_last_error=True) >>> buf = (c_char * 1)() >>> n = c_uint()

[issue24400] Awaitable ABC incompatible with functools.singledispatch

Yury Selivanov added the comment: Thanks, Martin, it was indeed something that shouldn't been committed. -- ___ Python tracker ___ ___

[issue24400] Awaitable ABC incompatible with functools.singledispatch

Roundup Robot added the comment: New changeset 68996acdec6f by Yury Selivanov in branch '3.5': docs/conf: Undo changes in b2a3baa1c2b0; issue #24400 https://hg.python.org/cpython/rev/68996acdec6f -- ___ Python tracker

[issue24400] Awaitable ABC incompatible with functools.singledispatch

Martin Panter added the comment: The last change to /Doc/conf.py seems to have screwed up my docs build. Was that an accident? $ make -C Doc/ htmlsphinx-build -b html -d build/doctrees -D latex_paper_size= . build/html Running Sphinx v1.2.3 loading pickled environment... done Theme error: n

[issue23517] datetime.utcfromtimestamp parses timestamps incorrectly

Timothy Cardenas added the comment: We are seeing this behavior influencing other libraries in python 3.4. This should never fail if timestamp and fromtimestamp are implemented correctly: from datetime import datetime t = datetime.utcnow().timestamp() t2 = datetime.utcfromtimestamp(t) assert t

[issue24549] string.format() should have a safe_substitute equivalent, to be run consecutively

R. David Murray added the comment: Why not use string.Template? -- nosy: +r.david.murray ___ Python tracker ___ ___ Python-bugs-list m

[issue24549] string.format() should have a safe_substitute equivalent, to be run consecutively

New submission from azrdev: "{1} {0}".format('one').format('two') should return "two one", but throws IndexError: tuple index out of range This would allow partial replacements, similar to string.Template.safe_substitute() I suggest an analog construction (e.g. a method string.safe_forma

[issue24543] Configure script wrongly detects mc68881 with -flto option passed

Andreas Schwab added the comment: That means these tests are broken as well: AC_MSG_CHECKING(for x64 gcc inline assembler) AC_MSG_CHECKING(whether we can use gcc inline assembler to get and set x87 control word) -- ___ Python tracker

[issue24543] Configure script wrongly detects x64/x87/mc68881 with -flto option passed

Changes by Andreas Schwab : -- title: Configure script wrongly detects mc68881 with -flto option passed -> Configure script wrongly detects x64/x87/mc68881 with -flto option passed ___ Python tracker _

[issue23992] multiprocessing: MapResult shouldn't fail fast upon exception

Charles-François Natali added the comment: Barring any objections, I'll commit within the next few days. -- ___ Python tracker ___ ___

[issue24548] Broken link in the unittest documentation

New submission from Dmitry Kazakov: The "Simple Smalltalk Testing: With Patterns" link from https://docs.python.org/3.5/library/unittest.html is dead. I found 2 "mirrors" but I don't think any of them should replace the broken link. 1. http://testingsoftware.blogspot.com/2007/08/smalltalk-tes

[issue24547] What’s New In Python 3.4: stray "("

New submission from Jakub Wilk: https://docs.python.org/3/whatsnew/3.4.html#multiprocessing reads: "On Unix two new start methods, (spawn and forkserver, have been added for starting processes using multiprocessing." This stray "(" should be removed. -- assignee: docs@python components

[issue24545] Issue with ssl package

Antoine Pitrou added the comment: We should probably change the default value for the *ssl_version* parameter. In the meantime, you can workaround this simply with: cert = ssl.get_server_certificate((, 443), ssl.PROTOCOL_SSLv23) -- ___ Python tra

[issue24508] Backport 3.5's Windows build project files to 2.7

Zachary Ware added the comment: Thanks for testing this, Steve! It sounds like PCbuild/readme.txt will need a significant update in the setup portion to cover the different ways to get what is needed (and to mention PC/VS9.0 as a simpler setup). I use third-party extension modules rarely enou

[issue24400] Awaitable ABC incompatible with functools.singledispatch

Roundup Robot added the comment: New changeset b2a3baa1c2b0 by Yury Selivanov in branch '3.5': Issue #24400: Mention that __instancecheck__ is used in abc.Awaitable and Coroutine https://hg.python.org/cpython/rev/b2a3baa1c2b0 New changeset 4bf1d332fe73 by Yury Selivanov in branch 'default': Mer

[issue24400] Awaitable ABC incompatible with functools.singledispatch

Roundup Robot added the comment: New changeset a9d38701536d by Yury Selivanov in branch '3.5': Issue #24400: Add one more unittest for CoroutineType.__await__ https://hg.python.org/cpython/rev/a9d38701536d -- ___ Python tracker

[issue24546] sequence index bug in random.choice

Changes by Raymond Hettinger : -- assignee: -> rhettinger ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: http

[issue24546] sequence index bug in random.choice

New submission from Serge Anuchin: It seems there is minor bug in random.choice. I've got traceback from my server with IndexError from random.choice, but sequence wasn't empty (seq value was: u'\u0411\u0413\u0414\u0416\u0418\u041b\u0426\u042b\u042d\ u042e\u042f\u0410\u0412\u0415\u041a\u041c\u

[issue24545] Issue with ssl package

Changes by Stefan Krah : -- type: crash -> behavior ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mai

[issue24545] Issue with ssl package

Changes by Christian Heimes : -- nosy: +alex, christian.heimes, dstufft, giampaolo.rodola, janssen, pitrou ___ Python tracker ___ ___

[issue24545] Issue with ssl package

New submission from Kayne: I tried to use cert = ssl.get_server_certificate((, 443)) and it crashed with following error: Traceback (most recent call last): File "PeerCertChainQuery.py", line 107, in cert = ssl.get_server_certificate((options.host, 443)) File "/opt/lib/python2.7/ss

[issue24544] Race condition and crash when embedding multi-thread script

New submission from Oleksiy Markovets: INTRODUCTION While embedding python script in c++ application I faced random crashes with error: Fatal Python error: Py_EndInterpreter: not the last thread

[issue24544] Race condition and crash when embedding multi-thread script

Oleksiy Markovets added the comment: attached file -- Added file: http://bugs.python.org/file39841/main.py ___ Python tracker ___ ___

[issue24127] Fatal error in launcher: Job information querying failed

Changes by Zachary Ware : -- stage: -> resolved ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.p

[issue24543] Configure script wrongly detects mc68881 with -flto option passed

Changes by Stefan Krah : -- nosy: +schwab ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.o

[issue24543] Configure script wrongly detects mc68881 with -flto option passed

New submission from marxin: I've just tried to build Python with {C,CXX,LD}FLAGS set to '-flto'. Unfortunately following conftest source file is fragile: cat /tmp/mc.c int main () { unsigned int fpcr; __asm__ __volatile__ ("fmove.l %%fpcr,%0" : "=g" (fpcr)); __asm__ __volatile__ ("fmove.

[issue24533] Increased Test Coverage for Lib/random.py

Charles Nodell added the comment: Sounds fine! I look forward to seeing how to do this properly! -- ___ Python tracker ___ ___ Python-

[issue24127] Fatal error in launcher: Job information querying failed

Henrik Heimbuerger added the comment: Happy to report that in build 10159 of Windows 10 64-bit, this just started to work again. No reinstallation of pip needed! -- ___ Python tracker _

[issue24129] Incorrect (misleading) statement in the execution model documentation

Ivan Levkivskyi added the comment: What holds the patch now? Should I do something or just wait? -- ___ Python tracker ___ ___ Python-

[issue24528] Misleading exeption for await in comprehensions.

Ivan Levkivskyi added the comment: Yury, thank you for the patch, the error message is much clearer now. -- ___ Python tracker ___ ___

[issue24195] Add `Executor.filter` to concurrent.futures

Ethan Furman added the comment: Brian, given my comments in msg245016 are you willing to add the Executor.filter() function? -- versions: +Python 3.6 -Python 3.5 ___ Python tracker

[issue24536] os.pipe() should return a structsequence (or namedtuple.)

Ethan Furman added the comment: As for Niki's example: - --> src = os.pipe() --> src (3, 4) --> if not hasattr(src, 'read'): src = open(src) ... Traceback (most recent call last): File "", line 1, in TypeError: invalid file: (3, 4) -