[issue39105] Spam

Change by Karthikeyan Singaravelan : -- components: -asyncio nosy: -asvetlov, yselivanov stage: -> resolved status: open -> closed title: Printer offline -> Spam ___ Python tracker

[issue39105] Printer offline

New submission from Printer offline : This blog has increased the level of information sharing. I just simply loved this blog. It has helped me a lot. A great and learning blog. I am very satisfied after reading this. https://www.printer-offline.com/ -- components: asyncio files:

[issue39104] ProcessPoolExecutor hangs on shutdown nowait with pickling failure

Change by Thomas Moreau : -- keywords: +patch pull_requests: +17134 stage: -> patch review pull_request: https://github.com/python/cpython/pull/17670 ___ Python tracker ___

[issue39104] ProcessPoolExecutor hangs on shutdown nowait with pickling failure

New submission from Thomas Moreau : The attached scripts hangs on python3.7+. This is due to the fact that the main process closes the communication channels directly while the queue_management_thread might still use them. To prevent that, all the closing should be handled by the

[issue39103] [linux] strftime renders %Y with only 3 characters

Change by Karthikeyan Singaravelan : -- nosy: +belopolsky, p-ganssle ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue39102] Increase Enum performance

Change by Ethan Furman : -- assignee: -> ethan.furman ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

Re: Cython, producing different modules from the same .pyx

On 20/12/19 2:16 am, Lele Gaifax wrote: My first approach has been duplicating the Extension() entry in the setup.py(*), changing the first argument (that is, the name of the module). Although that did produce the alternative binary module, it could not be loaded because it contains the wrong

pytest 4.6.8 released!

pytest 4.6.8 has just been released to PyPI. This is a bug-fix release, being a drop-in replacement. To upgrade:: pip install --upgrade pytest The full changelog is available at https://docs.pytest.org/en/latest/changelog.html. Thanks to all who contributed to this release, among them: *

[issue39094] Add a default to statistics.mean and related functions

Raymond Hettinger added the comment: Thought experiment: Suppose someone proposed, "math.log(x) should take an optional default argument because it is inconvenient to a catch a ValueError if the input is non-positive". Or more generally, what if someone proposed, "every function in Python

[issue39103] [linux] strftime renders %Y with only 3 characters

New submission from Jason R. Coombs : On Python 3.8, there's a difference between how datetime.datetime.strftime renders %Y for years < 1000 between Linux and other platforms. # Linux $ docker run -it python python -c 'import datetime; print(datetime.date(900,1,1).strftime("%Y"))'

How to improve epoll speed when recv from kernel via netlink?

I tried to receive msg from kernel via netlink of socket. And I use epoll to receive netlink events whenever it comes from kernel to user space. But I found the performance is poor e.g. epoll costs 90% time of execution time after I profile it by cProfile module. Are there any tips to improve

[issue39102] Increase Enum performance

Change by Karthikeyan Singaravelan : -- nosy: +barry, eli.bendersky, ethan.furman ___ Python tracker ___ ___ Python-bugs-list

[issue39102] Increase Enum performance

Change by Arseny Boykov : -- keywords: +patch pull_requests: +17133 stage: -> patch review pull_request: https://github.com/python/cpython/pull/17669 ___ Python tracker ___

[issue39102] Increase Enum performance

New submission from Arseny Boykov : Now enum has very poor speed on trying values and attributes access (especially when it comes to accessing members name/value attrs) There are two major reasons why attrs access is slow: - All values/names access going through DynamicClassAttribute (x10

[issue38815] test_ssl: test_min_max_version() fails on FreeBSD and Fedora

Kubilay Kocak added the comment: @Christian As current assignee, are you able to produce a test that fixes the remaining issue (per msg357792)? I can rebuild OpenSSL on the worker at your direction at any time to make the test fail again or provide you with an SSH account to assist

[issue39099] scandir.dirfd() method

Eryk Sun added the comment: > I am not sure if it's possible to also support Windows. For reference, FindFirstFileW doesn't support handle-relative names, and neither does CreateFileW. At a lower level in Windows NT, NtCreateFile has always supported handle-relative names, but CPython

[issue38971] codecs.open leaks file descriptor when invalid encoding is passed

Change by Roundup Robot : -- keywords: +patch pull_requests: +17132 stage: needs patch -> patch review pull_request: https://github.com/python/cpython/pull/17666 ___ Python tracker

[ANN] pvlib-python v0.7.0: predicting power for solar energy

pvlib has a new major release, v0.7.0 Release Notes: https://pvlib-python.readthedocs.io/en/v0.7.0/whatsnew.html PyPI: https://pypi.org/project/pvlib/ Read the Docs: https://pvlib-python.readthedocs.io/en/latest/ GitHub: https://github.com/pvlib/pvlib-python Here's a quick summary: -

[issue39070] Uninstalling 3.8.0 fails but it says it succeeds..

Steve Dower added the comment: The only issue I see in that log is an apparent failure communicating between the unelevated and the elevated components of the uninstaller. But that doesn't seem to have interfered with the rest of the process, so I'm at a bit of a loss. Possibly it has

Re: on sorting things

On Fri, Dec 20, 2019 at 8:06 AM Eli the Bearded <*@eli.users.panix.com> wrote: > > In comp.lang.python, Peter Otten <__pete...@web.de> wrote: > > Eli the Bearded wrote: > >> But what caught my eye most, as someone relatively new to Python but > >> with long experience in C in Perl, is sorting

Re: on sorting things

In comp.lang.python, Peter Otten <__pete...@web.de> wrote: > Eli the Bearded wrote: >> But what caught my eye most, as someone relatively new to Python but >> with long experience in C in Perl, is sorting doesn't take a s/C in /C and/ Ugh. >> *comparison* function, it takes a *key generator*

[issue39101] IsolatedAsyncioTestCase freezes when exception is raised

Change by Fabio Pugliese Ornellas : -- type: -> crash ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue39101] IsolatedAsyncioTestCase freezes when exception is raised

New submission from Fabio Pugliese Ornellas : IsolatedAsyncioTestCase freezes whenever an exception that inherits from BaseException is raised: import unittest class TestHangsForever(unittest.IsolatedAsyncioTestCase): async def test_hangs_forever(self): raise BaseException("Hangs

[issue39100] email.policy.SMTP throws AttributeError on invalid header

New submission from Anton Khirnov : When parsing a (broken) mail from linux-me...@vger.kernel.org (message-id 20190212181908.horde.peighvv2khy9ekuy8ta8...@webmail.your-server.de, headers attached) with email.policy.SMTP, I get an AttributeError on trying to read the 'to' header:

[issue39099] scandir.dirfd() method

Giampaolo Rodola' added the comment: Good point, I didn't consider that. I suppose you're right. =) Closing. -- stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue39099] scandir.dirfd() method

Benjamin Peterson added the comment: Why not just os.open the directory yourself and pass it to os.scandir? -- nosy: +benjamin.peterson ___ Python tracker ___

[issue39099] scandir.dirfd() method

Change by Giampaolo Rodola' : -- keywords: +patch pull_requests: +17131 stage: -> patch review pull_request: https://github.com/python/cpython/pull/17664 ___ Python tracker

[issue39099] scandir.dirfd() method

New submission from Giampaolo Rodola' : PR in attachment adds a new dirfd() method to the scandir() object (POSIX only). This can be be passed to os.* functions supporting the "dir_fd" parameter, and avoid opening a new fd as in: >>> dirfd = os.open("basename", os.O_RDONLY, dir_fd=topfd)

Re: INHERITANCE in python3

On 12/19/2019 06:22 AM, Pieter van Oostrum wrote: Random832 writes: On Wed, Dec 18, 2019, at 23:10, wrote: [vahid asadi] my problem here is why this attribute is not recognize by python and it raise an traceback error that said 'there is no such p.family attribute'. although i use multiple

Re: Cython, producing different modules from the same .pyx

On 12/19/2019 05:16 AM, Lele Gaifax wrote: in my package, I would like to compile and distribute two different extension modules starting from the same .pyx file, just with different compilation flags and libraries. If you don't get an answer here, you can try the Cython Users group:

[issue39093] tkinter objects garbage collected from non-tkinter thread cause panic and core dump

obserience added the comment: My proposed fix isn't compatible with a lot of current Tkinter using code. It was a naive first attempt and breaks existing code and doesn't completely solve the problem. Variables currently retain a reference to the TCL interpreter self._tk and aren't linked

ANN: SciPy 1.4.1

-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi all, On behalf of the SciPy development team I'm pleased to announce the release of SciPy 1.4.1, which is a bug fix release. Sources and binary wheels can be found at: https://pypi.org/project/scipy/ and at:

[issue32888] Improve exception message in ast.literal_eval

Change by Batuhan : -- pull_requests: +17130 pull_request: https://github.com/python/cpython/pull/17662 ___ Python tracker ___ ___

[issue38980] Compile libpython with -fno-semantic-interposition

STINNER Victor added the comment: Pablo: > I have seen people using LD_PRELOAD (...) to interpose faster versions of > some functions or to collect metrics (although there are better ways). IMHO if someone has to go so far into "hacking" Python, they should recompile Python with specific

[issue38316] docs: Code object's "co_stacksize" field is described with mistake

STINNER Victor added the comment: Thanks Paul Sokolovsky for the bug report and thanks Batuhan Taşkaya for the fix ;-) -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue38316] docs: Code object's "co_stacksize" field is described with mistake

miss-islington added the comment: New changeset eba61f33d60cc63e35d5f5fcada837a66c89774a by Miss Islington (bot) (Batuhan Taşkaya) in branch '3.8': [3.8] bpo-38316: Fix co_stacksize documentation (GH-16983) (GH-17661)

[issue38316] docs: Code object's "co_stacksize" field is described with mistake

miss-islington added the comment: New changeset 917419f58b2869d71691c5ba54a9e02e5dcf73b2 by Miss Islington (bot) (Batuhan Taşkaya) in branch '3.7': [3.7] bpo-38316: Fix co_stacksize documentation (GH-16983). (GH-17660)

[issue38316] docs: Code object's "co_stacksize" field is described with mistake

Change by Batuhan : -- pull_requests: +17128 pull_request: https://github.com/python/cpython/pull/17660 ___ Python tracker ___ ___

[issue38316] docs: Code object's "co_stacksize" field is described with mistake

Change by Batuhan : -- pull_requests: +17129 pull_request: https://github.com/python/cpython/pull/17661 ___ Python tracker ___ ___

Re: hexdump module installation error

tommy yama writes: > user@USERnoMacBook-Air LibraBrowser % python3 hexdump.py > > /usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Contents/MacOS/Python: > can't open file 'hexdump.py': [Errno 2] No such file or directory > > user@USERnoMacBook-Air

[issue39096] Description of "Format Specification Mini-Language" not accurate for Decimal

Change by Eric V. Smith : -- nosy: +eric.smith, mark.dickinson ___ Python tracker ___ ___ Python-bugs-list mailing list

Re: INHERITANCE in python3

Random832 writes: > On Wed, Dec 18, 2019, at 23:10, vahid asadi via Python-list wrote: >> HI guys this is my first post on python mailing lists ever and i glad >> to do this. >> my problem here is why this attribute is not recognize by python and it >> raise an traceback error that said 'there

Understanding of GIL

Hi Devs, I am currently writing some custom Django commands for data updation, my workflow is like Fetch data from *PostgreSQL*. Call *Elasticsearch* for searching based on the data fetched from *PostgreSQL*. Query *PostgreSQL* and do an upsert behavior. I am using pandas data frame to hold my

Re: hexdump module installation error

Yes. thanks for your enthusiasm. i may raise this in the git On Thu, Dec 19, 2019 at 12:46 PM Rhodri James wrote: > On 19/12/2019 12:43, tommy yama wrote: > > Thanks for your quick response i did not expect. > > I hope you see the error below in my response as i just copy and paste > it. > > >

Re: hexdump module installation error

On Thu, Dec 19, 2019 at 11:44 PM tommy yama wrote: > > Hi Rhodri, > > Thanks for your quick response i did not expect. > I hope you see the error below in my response as i just copy and paste it. > > "no module named 'hexdump'." > > In addition, i tried to execute python3 hexdump.py. However, no

[issue34850] Emit a syntax warning for "is" with a literal

thautwarm added the comment: Thanks. However, unfortunately, this warning seems impossible to suppress. Use following example: import warnings warnings.filterwarnings('ignore') warnings.warn(SyntaxWarning("test")) def f(x): return x is 5 print(f(5)) I succeeded in

Cython, producing different modules from the same .pyx

Hi all, in my package, I would like to compile and distribute two different extension modules starting from the same .pyx file, just with different compilation flags and libraries. My first approach has been duplicating the Extension() entry in the setup.py(*), changing the first argument (that

[issue39098] OSError: handle is closed in ProcessPoolExecutor on shutdown(wait=False)

New submission from Patrick Buxton : When shutting down a ProcessPoolExecutor with wait=False, an `OSError: handle is closed` is raised. The error can be replicated with a script as simple as: ``` from concurrent.futures import ProcessPoolExecutor e = ProcessPoolExecutor() e.submit(id)

[RELEASE] Python 3.8.1, 3.7.6, 3.6.10, and 3.9.0a2 are now available!

from locale import seasons_greetings seasons_greetings() On behalf of the entire Python development community, and the currently serving Python release team in particular, I'm pleased to announce the unprecedented combined release of no less than four versions of Python. Let's dig in! Python

[issue11245] Implementation of IMAP IDLE in imaplib?

Josh de Kock added the comment: Hi, I'm new to python but I had a go at implementing this for imaplib(1) using a different approach. It works but it has a couple issues (see patch), I would appreciate any thoughts/improvements. -- nosy: +jdek versions: +Python 3.9 -Python 3.6 Added

Re: hexdump module installation error

On 19/12/2019 12:43, tommy yama wrote: Thanks for your quick response i did not expect. I hope you see the error below in my response as i just copy and paste it. "no module named 'hexdump'." In addition, i tried to execute python3 hexdump.py. However, no such file directory. from hexdump

Re: hexdump module installation error

Hi Rhodri, Thanks for your quick response i did not expect. I hope you see the error below in my response as i just copy and paste it. "no module named 'hexdump'." In addition, i tried to execute python3 hexdump.py. However, no such file directory. from hexdump import hexdump

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

Change by Inada Naoki : -- keywords: +patch pull_requests: +17127 stage: -> patch review pull_request: https://github.com/python/cpython/pull/17659 ___ Python tracker ___

[issue39097] The description of multiprocessing.cpu_count() is not accurate in the documentation

songyuc <466309...@qq.com> added the comment: Hi, Andrew! Thanks for your explanation! I am sorry about my unfamiliarity about the shortcut, as a student from China whose mother tongue is not English. So I am not quite familiar with the English customs in Computer engineering. --

Re: hexdump module installation error

On 19/12/2019 11:23, tommy yama wrote: Thanks for your kind response. The error was simply "module Hexdump was not found". Several things: a) Did it really say "module Hexdump was not found"? "hexdump" and "Hexdump" are not the same things; module names are case-sensitive. b) There will

Re: How to specific multiple dtypes in numpy.ndarray?

On 19/12/2019 11.52, lampahome wrote: > I meet performance is low when I use struct.unpack to unpack binary data. > > So I tried to use numpy.ndarray > But meet error when I want to unpack multiple dtypes > > Can anyone teach me~ > > Code like below: > # python3 > import struct > import numpy as

[issue39097] The description of multiprocessing.cpu_count() is not accurate in the documentation

Andrew Svetlov added the comment: While your suggestion is technically correct, CPU as a shortcut for "logical processor" is very common in software engineering. For me, "number of CPU threads" is more unclear than just "number of CPUs" -- nosy: +asvetlov

[issue39097] The description of multiprocessing.cpu_count() is not accurate in the documentation

New submission from songyuc <466309...@qq.com>: In the documentation of Python 3.7, the description of multiprocessing.cpu_count() is "Return the number of CPUs in the system.", but, in fact, this function return the CPU threads number. -- assignee: docs@python components:

Re: hexdump module installation error

Thanks for your kind response. The error was simply "module Hexdump was not found". Regards, On Wed, Dec 18, 2019 at 11:39 PM Rhodri James wrote: > On 18/12/2019 02:23, tommy yama wrote: > > Hi, > > > > This sounds familiar to somebody? > > After upgrading my mac OS to Catalina, this persists

[issue39094] Add a default to statistics.mean and related functions

Steven D'Aprano added the comment: TL;DR: I'm not likely to accept this feature request without at least one of (1) a practical use-case, (2) prior art in other statistics software, or (3) a strong mathematical justification for why this is meaningful and useful. I'm not categorically

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

Inada Naoki added the comment: > Don't you need to DECREF bytes somehow, at least, in case of failure? Thanks. I will create a pull request with suggested changes. -- ___ Python tracker

[issue39094] Add a default to statistics.mean and related functions

STINNER Victor added the comment: > I've tried think of other solutions, such as a generic wrapper for such > functions or a helper to check whether an iterable is empty, and they all > turn out to be very clunky to use and un-Pythonic. So the main use case would be to detect an empty

How to specific multiple dtypes in numpy.ndarray?

I meet performance is low when I use struct.unpack to unpack binary data. So I tried to use numpy.ndarray But meet error when I want to unpack multiple dtypes Can anyone teach me~ Code like below: # python3 import struct import numpy as np s1 = struct.Struct("@QIQ") ss1 = s1.pack(1,11,111)

[issue39094] Add a default to statistics.mean and related functions

Mark Dickinson added the comment: What would the proposal look like for `statistics.stdev`? There you need at least two data points to compute a result, and a user might want to do different things for an empty dataset versus a single data point. -- nosy: +mark.dickinson

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

STINNER Victor added the comment: return PyBytesType.tp_as_buffer(bytes, view, PyBUF_CONTIG_RO); Don't you need to DECREF bytes somehow, at least, in case of failure? -- ___ Python tracker

[issue39096] Description of "Format Specification Mini-Language" not accurate for Decimal

Michael Amrhein added the comment: For a discussion of the different behaviour of float and Decimal see https://bugs.python.org/issue39077. -- ___ Python tracker ___

[issue39077] Numeric formatting inconsistent between int, float and Decimal

Michael Amrhein added the comment: Created new issue for tracking the deficiencies in the documentation: https://bugs.python.org/issue39096. -- resolution: -> wont fix stage: -> resolved status: open -> closed ___ Python tracker

[issue39096] Description of "Format Specification Mini-Language" not accurate for Decimal

New submission from Michael Amrhein : The description of the "Format Specification Mini-Language" states for float and Decimal regarding presentation type 'f': "The default precision is 6." Regarding presentation type None it reads: "Similar to 'g', except that fixed-point notation, when used,

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

Inada Naoki added the comment: s/return NULL/return -1/g -- ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

Inada Naoki added the comment: > Would it be possible to use a "container" object like a Py_buffer? Is there a > way to customize the code executed when a Py_buffer is "released"? It looks nice idea! Py_buffer.obj is decref-ed when releasing the buffer.

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

Serhiy Storchaka added the comment: > Would it be possible to use a "container" object like a Py_buffer? Looks like a good idea. int PyUnicode_GetUTF8Buffer(Py_buffer *view, const char *errors) -- nosy: +skrah ___ Python tracker

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

STINNER Victor added the comment: > The returned object is the owner of the *utf8*. You need to Py_DECREF() it > after > you finished to using the *utf8*. The owner may be not the unicode. Would it be possible to use a "container" object like a Py_buffer? Is there a way to customize the

[issue39087] [C API] No efficient C API to get UTF-8 string from unicode object.

Serhiy Storchaka added the comment: Do you mean some concrete code? Several times I wished similar feature. To get a UTF-8 cache if it exists and encode to UTF-8 without creating a cache otherwise. The private _PyUnicode_UTF8() macro could help if ((s = _PyUnicode_UTF8(str))) { size =

[RELEASE] Python 3.8.1, 3.7.6, 3.6.10, and 3.9.0a2 are now available!

from locale import seasons_greetings seasons_greetings() On behalf of the entire Python development community, and the currently serving Python release team in particular, I'm pleased to announce the unprecedented combined release of no less than four versions of Python. Let's dig in! Python

[issue20443] __code__. co_filename should always be an absolute path

STINNER Victor added the comment: I reverted my change, so I remove "release blocker" priority. -- priority: release blocker -> ___ Python tracker ___

Re: on sorting things

Eli the Bearded wrote: > I recently saw a link to an old post on a blog and then started looking > at the newer posts. This one: > > https://leancrew.com/all-this/2019/11/the-key-to-sorting-in-python/ > > discusses ways to deal with useful sorting of movie / television show > titles. Some

Re: on sorting things

On Thu, Dec 19, 2019 at 6:36 PM Eli the Bearded <*@eli.users.panix.com> wrote: > > I recently saw a link to an old post on a blog and then started looking > at the newer posts. This one: > > https://leancrew.com/all-this/2019/11/the-key-to-sorting-in-python/ > > discusses ways to deal with useful