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ctChain(exc_type, exc_value)
>
>
> I would first make these functions private, as _PyErr_ChainExceptions().
> After proofing their usefulness in the stdlib, they can be made public.
>
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I think setting context in exception constructor would be fine.
On Thu, Mar 26, 2015 at 1:36 PM, Victor Stinner
wrote:
> 2015-03-26 11:52 GMT+01:00 Andrew Svetlov :
>> There is another issue: exception chain is not set up on exception
>> creation in python code, only on throwi
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english and spanish.
>
> We should have replied in English if it would have been something related
> to python-dev, but we have responded in Spanish as maybe the user doesn't
> understand English.
>
> Kind Regards,
> Raúl
>
> 2015-04-14 20:41 GMT-04:00 Andrew Svetlov
Ok, sorry.
On Tue, Apr 14, 2015 at 8:59 PM, Ian Cordasco
wrote:
>
>
> On Tue, Apr 14, 2015 at 7:54 PM, Andrew Svetlov
> wrote:
>
>> Python-dev is for development OF Python, not for development WITH Python
>> or Python LEARNING, BTW.
>>
>> On Tue,
this work
> we might want to patch inspect.py to make isgenerator() family
> of functions to return False for coroutines/coroutine-objects.
>
> Thanks a lot for the feedback!
>
> Yury
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On Wed, Apr 22, 2015 at 9:45 PM, Yury Selivanov wrote:
> Andrew,
>
> On 2015-04-22 2:32 PM, Andrew Svetlov wrote:
>>
>> For now I can use mix asyncio.coroutines and `async def` functions, I
>> mean I can write `await f()` inside async def to call
>> asyncio.corout
On Wed, Apr 22, 2015 at 10:24 PM, Yury Selivanov
wrote:
>
>
> On 2015-04-22 2:53 PM, Andrew Svetlov wrote:
>>
>> On Wed, Apr 22, 2015 at 9:45 PM, Yury Selivanov
>> wrote:
>
> [...]
>>>
>>>
>>>> If we forbid to call `async def` f
with/for semantics and await expressions, but the rest
> seems unnecessary and bad for writing robust code. (e.g. note that
> requiring different syntax means a function must either duplicate code
> or restrict its input types more, and type changes in remote parts of
> the program will
x27;name'])
[1] https://github.com/KeepSafe/aiohttp
[2] https://github.com/aio-libs/aiomysql/tree/await
> --
> --Guido van Rossum (python.org/~guido)
>
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future' - your
> proposal *won't* work with a lot of existing code
> and patterns. It's going to be radically different
> from all other languages that implement 'await' too.
>
> Yury
>
> ______
approach makes it possible to continue using old code and
>> modules without a hassle, while coming up with a migration plan for
>> future python versions.
>>
>>
>> Why magic methods start with "a"
>>
>>
>&g
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On Thu, Apr 23, 2015 at 3:10 PM, Greg Ewing wrote:
> Andrew Svetlov wrote:
>>
>> From my understanding to use cofunctions I must wrap it with costart call:
>>
>> yield from gather(costart(coro1, a1, a2), costart(coro2), fut3)
>>
>> There are other places in
On Thu, Apr 23, 2015 at 3:27 PM, Wolfgang Langner
wrote:
>
>
> On Thu, Apr 23, 2015 at 12:35 PM, Paul Sokolovsky wrote:
>>
>> Hello,
>>
>> On Thu, 23 Apr 2015 12:18:51 +0300
>> Andrew Svetlov wrote:
>>
>> []
>>
>> > > 3.
>
I can live with `cocall fut()` but the difference between `data = yield from
loop.sock_recv(sock, 1024)` and `data = cocall (loop.sock_recv(sock, 1024))()`
frustrates me very much.
—
Sent from Mailbox
On Thu, Apr 23, 2015 at 4:09 PM, Victor Stinner
wrote:
> (I prefer to start a new thread,
On Fri, Apr 24, 2015 at 3:14 AM, Greg Ewing wrote:
> Andrew Svetlov wrote:
>
>> But we already have asyncio and code based on asyncio coroutines.
>> To make it work I should always use costart() in places where asyncio
>> requires coroutine.
>
>
> As I understand
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t a() + await b()
>> res = await await a()
>> if await a(): pass
>> return await a()
>> print(await a())
>> func(arg=await a())
>> await a() * b()
>>
>
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On Wednesday Apr 29, 2015 at 7:14 PM, Yury Selivanov ,
wrote:Also please see this:
https://hg.python.org/peps/rev/d048458307b7
FWIW, 'await await fut' isn't something that you likely to see in
your life; 'await -fut' is 99.999% just a bug.
Agree.
I'm not sure
why G
k, which can't have been easy. Thanks for all the work.
>
> Paul.
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gt; >>> sock.server_hostname
> > 'www.straße.de <http://www.strasse.de>'
> >
> > Changed:
> > >>> sock.server_hostname
> > 'www.strasse.de'
> >
> > Christian
> >
> > ________
Sorry for that.
I thought that the bpo issue can be skipped because it is tests-only
change, no asyncio code was affected.
Will be more accurate next time.
On Tue, May 22, 2018 at 3:26 PM Victor Stinner wrote:
> Hi,
>
> In https://bugs.python.org/issue33531, Andrew Svetlov wrote "
t;> Unsubscribe:
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> Another issue that bothers me, is code reuse. Independent from whether the
> 'async def' makes sense or not, it would not allow us to reuse asyncio
> functions as if they were normal functions and vice versa (if I understood
> that correctly). So, we would have to implement things twice for the a
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ment works well.
The behavior is very annoying -- I was forced to write missed message twice.
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uld also
> provide a reference to that object.
>
> Best regards,
> Ádám
>
> (http://szieberthadam.github.io/)
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> U
BA5FfkwF
> rLUAnRg0RpL/b6apv+Dt2/sgnUd3hTPA
> =Z4Ss
> -END PGP SIGNATURE-
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"are there enough reasons
> make the package special enough to add to stdlib?" We don't mean
> "everyone can use PyPI."
>
> Regards,
> --
> INADA Naoki
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ith wrote:
>
> On Thu, Nov 29, 2018 at 2:58 AM Andrew Svetlov
> wrote:
>
>> 5 cents about lz4 alternatives: Broli (mentioned above) is widely
>> supported by web.
>>
>> https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Encoding
>> mention
On Thu, Nov 29, 2018 at 11:22 PM Steve Dower wrote:
> FWIW, Brotli has been supported in Microsoft Edge since early last year:
>
>
> https://blogs.windows.com/msedgedev/2016/12/20/introducing-brotli-compression/
>
>
Thanks, good to know.
--
Than
On Fri, Nov 30, 2018 at 2:12 AM Brett Cannon wrote:
>
>
> On Thu, 29 Nov 2018 at 14:12, Andrew Svetlov
> wrote:
>
>> Neither http.client nor http.server doesn't support compression
>> (gzip/compress/deflate) at all.
>> I doubt if we want to add this feat
t, but the same argument is equally applicable to int, float,
> etc. subclasses. If you want to limit your change to datetime types you
> should explain what makes these types special.
>
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er soon. Please
> take care of yourself!
>
> Christian
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as possible. Not only "the biggest bottleneck"
> is the problem.
>
> --
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t; consider that there is a low risk that creating the object can fail.
>
> UnraisableHookArgs creation failure *is* covered by my implementation!
> The default hook is called directly in C without using a temporary
> UnraisableHookArgs object. The exception which caused the failure
ted modules will be picked up and
> adopted by users that actually care about them. For example ``colorsys`` and
> ``imghdr`` are useful modules, but have limited feature set. A fork of
> ``imghdr`` can add new features and support for more image formats, without
> being constrained by Pyth
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Looking on PEP http://www.python.org/dev/peps/pep-0384/ and docs I
don't figure out how to specify this values.
Maybe I've missed something?
If not I like to solve that problem at us pycon sprints.
Hope, Martin von Loewis will visit the conference.
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s which represent Python protocols:
>
> I don't quite follow: Aren't input types always specified by the converter
> function?
>
>
>> Argument Clinic also permits embedding Python code inside C files, which
>> is executed in-place when Argument Clinic processes
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s*) quiet="-q";; \
> *) quiet="";; \
> @@ -955,7 +960,7 @@
> elsetrue; \
> fi; \
> done
> - @for i in $(srcdir)/Lib/*.py $(srcdir)/Lib/*.doc
> $(srcdir)/Lib/*.egg-info ; \
> + @for i in $(srcdir)/Lib/*.py `cat pybuilddir.txt`/_sysconfigdata.py
> $(srcdir)/Lib/*.doc $(srcdir)/Lib/*.egg-info ; \
> do \
> if test -x $$i; then \
> $(INSTALL_SCRIPT) $$i $(DESTDIR)$(LIBDEST); \
> @@ -1133,6 +1138,7 @@
> --install-scripts=$(BINDIR) \
> --install-platlib=$(DESTSHARED) \
> --root=$(DESTDIR)/
> + -rm $(DESTDIR)$(DESTSHARED)/_sysconfigdata.py*
>
> # Here are a couple of targets for MacOSX again, to install a full
> # framework-based Python. frameworkinstall installs everything, the
> diff --git a/Misc/NEWS b/Misc/NEWS
> --- a/Misc/NEWS
> +++ b/Misc/NEWS
> @@ -216,6 +216,10 @@
> Library
> ---
>
> +- Issue #13150: sysconfig no longer parses the Makefile and config.h files
> + when imported, instead doing it at build time. This makes importing
> + sysconfig faster and reduces Python startup time by 20%.
> +
> - Issue #10212: cStringIO and struct.unpack support new buffer objects.
>
> - Issue #12098: multiprocessing on Windows now starts child processes
>
> --
> Repository URL: http://hg.python.org/cpython
>
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d325
>> changeset: 83110:6cf485ffd325
>> parent: 83106:94fb906e5899
>> parent: 83109:9610ede72ed2
>> user:Andrew Svetlov
>> date:Fri Apr 05 11:40:01 2013 +0300
>> summary:
>> Fix typo
>>
>> files:
>&g
the program so that the new functionality
> makes more sense".
>
> Eli
>
>
>
>
> On Sat, Apr 6, 2013 at 7:25 AM, Andrew Svetlov
> wrote:
>>
>> Do you mean something like:
>> «Let's also change the rest of the program to make the new functionali
9:18fd64f1de2d
>> > branch: 3.3
>> > user:Andrew Svetlov
>> > date:Sun Apr 07 16:42:24 2013 +0300
>> > summary:
>> > Process DEFAULT values in mock side_effect that returns iterator.
>> >
>> > Patch by Michael Ford.
&g
;
>> --
>> --Guido van Rossum (python.org/~guido)
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etter one).
Signal module already has required data as internal variable
static long main_thread;
I just guess to expose this value to python.
Thoughts?
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I missed _MainThread in threading, that's why I've guessed to add
function to signal module.
threading.main_thread() is much better sure.
On Fri, Aug 30, 2013 at 12:39 PM, Antoine Pitrou wrote:
>
> Le Fri, 30 Aug 2013 12:24:07 +0300,
> Andrew Svetlov a écrit :
>>
:24:07PM +0300, Andrew Svetlov
> wrote:
>> Main thread is slightly different from others.
>> Signals can be subscribed from main thread only.
>> Tulip has special logic for main thread.
>> In application code we can explicitly know which thread is executed,
>> main
I've filed http://bugs.python.org/issue18882 for this.
On Fri, Aug 30, 2013 at 12:52 PM, Andrew Svetlov
wrote:
> _MainThread can be used as workaround, but adding public function makes value.
>
> Oleg, as I understand _MainThread is a class, not class instance, test
&
eb Antoine Pitrou:
>> >
>> > Le Fri, 30 Aug 2013 12:24:07 +0300,
>> > Andrew Svetlov a écrit :
>> >> Main thread is slightly different from others.
>> >> Signals can be subscribed from main thread only.
>> >> Tulip has special logic f
turn self.run(*args, **kwds)
> File "/home/ethan/source/python/issue18780/Lib/unittest/suite.py", line
> 114, in run
> test(result)
> TypeError: 'NoneType' object is not callable
> ___
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ug 31, 2013 at 9:58 PM, andrew.svetlov
> wrote:
>>
>> http://hg.python.org/cpython/rev/39781c3737f8
>> changeset: 85490:39781c3737f8
>> user:Andrew Svetlov
>> date:Sun Sep 01 07:58:41 2013 +0300
>> summary:
>> Issue #11798: fix tests for r
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entific Software Development
> - Desktop GUI and Web Development
> - wxPython, numpy, scipy, Cython
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On Mon, Dec 20, 2021 at 1:42 PM Mark Shannon wrote:
> OOI, of those 1577 Callable type hints, how many distinct Callable types?
>
>
Good question. About 30 callables for source code itself and an additional
60 for pytest factory fixtures.
> On 20/12/2021 7:52 am, Andrew Svetlov w
p://python.org/psf/codeofconduct/
>
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Message archiv
n__.bar]
>
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ia
>
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rds,
>
> Vinay Sajip
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If the warning text tells about the delayed execution -- I'm +1.
-1 for something like "just don't use __del__, it is dangerous".
On Wed, Jan 1, 2020, 21:51 Gregory P. Smith wrote:
>
>
> On Wed, Jan 1, 2020 at 6:40 AM Andrew Svetlov
> wrote:
>
>> _
ew reference to it.
> > This is called object resurrection. It is implementation-dependent whether
> > __del__() is called a second time when a resurrected object is about to be
> > destroyed; the current CPython implementation only calls it once.
>
> &qu
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What real status of this document?
As I figured out py3k trunk uses this ones.
Most part of 'battery included' modules don't use this feature,
leaving m_traverse, m_clear and m_free NULL pointers.
There are only exception: _io.
But looks like all underground python machinery is already ported to
Is there some public branch for this PEP?
I like the idea and glad to look on implementation.
Thanks.
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using of copy.copy for simple iterators is forbidden
>>> import copy
>>> copy.copy(iter([1, 2, 3]))
Traceback (most recent call last):
File "", line 1, in
File "/home/andrew/projects/py3k/Lib/copy.py", line 96, in copy
return _reconstruct(x, rv, 0)
File "/home/andrew/projects/py3k/Lib/c
What are expected values for module.__package__?
I see two different behaviors: importlib and standard python import.
importlib processes __package__ pretty simple and clean:
- for toplevel modules __package__ is empty string
- for packages it's package name
- for modules inside packages it's again
r and provide a
patch (for Python 3.2 and for 2.7 if later is required).
On Fri, May 21, 2010 at 10:18 PM, Andrew Svetlov
wrote:
> What are expected values for module.__package__?
> I see two different behaviors: importlib and standard python import.
> importlib processes __package__
Is there any reason to have Future .cancelled, .done, .running as methods?
>From my perspective they are really readonly properties.
BTW, is 'cancelled' correct name? Spell-checkers likes only single 'l'
form: 'canceled'.
On Sun, May 23, 2010 at 2:47 PM, Brian Quinlan wrote:
>
> On May 23, 2010,
SVN is very bad instrument to contribute or follow an issue patches.
And, of course, very long lifecycle of the most issues greatly reduces
enthusisasm.
On Wed, Mar 2, 2011 at 2:08 PM, Antoine Pitrou wrote:
>
> Hello,
>
> On Tue, 01 Mar 2011 19:25:00 -0800
> Westley Martínez wrote:
>>
>> If I go
On Wed, Mar 2, 2011 at 2:39 PM, Antoine Pitrou wrote:
>
> Will Mercurial make things more attractive?
>
Definitely yes! I welcome upcoming migration.
>> And, of course, very long lifecycle of the most issues greatly reduces
>> enthusisasm.
>
> True. I believe we are improving that, but perhaps th
As PEP 3101 http://www.python.org/dev/peps/pep-3101/ says (and current
Python does) user can specify conversions like "{0!s}".
In custom formatters (derived from string.Formatter) he can override
convert_field method to add custom conversions.
I experimented with that last month and found it very
tuple[int] is 30% slower than list[int].
Please let me explain the problem.
(1, 2, 3)[1] has compiled as BINARY_SUBSCR operation.
ceval.c has optimization for list:
case BINARY_SUBSCR:
w = POP();
v = TOP();
if (PyList_CheckExact(v) && PyInt_CheckExact(w
You right. Sorry, I missed changes in ceval.c for py3k.
Please note, simple test like:
from timeit import timeit
print('list', timeit("l[0]", "l = [1]"))
print('tuple', timeit("l[0]", "l = (1,)"))
Has results:
andrew@ocean ~/p/cpython> python2.7 z.py
('list', 0.03479599952697754)
('tuple', 0.04
I undrestand your point. Thank you for explanation.
On Sun, Jul 24, 2011 at 3:18 AM, Antoine Pitrou wrote:
> Le dimanche 24 juillet 2011 à 03:15 +0300, Andrew Svetlov a écrit :
>> You right. Sorry, I missed changes in ceval.c for py3k.
>> Please note, simple test like:
>>
ArchLinux has used `python` as alias for `python3` while `python2` is
still supported.
On Mon, Feb 20, 2012 at 4:58 PM, anatoly techtonik wrote:
> On Mon, Feb 20, 2012 at 4:58 PM, Nick Coghlan wrote:
>>
>> PEP 394
>> was at the top of my list recently
>
>
> I've tried to edit it to be a little b
I like 'PEP czar'
On Mon, Feb 20, 2012 at 6:50 PM, Mark Lawrence wrote:
> On 20/02/2012 16:28, Senthil Kumaran wrote:
>>
>> On Tue, Feb 21, 2012 at 12:07 AM, wrote:
>>>
>>> "supreme ruler" sounds good to me. I could go for "inquisitor" instead
>>> of "czar" as well...
>>
>>
>> But that would be
On Tue, Mar 13, 2012 at 5:29 PM, Victor Stinner
wrote:
> I suppose that you can use a manual fallback to time.time() if
> time.monotonic() failed. If time.monotonic() fails, it fails directly at the
> first call. Example of a fallback working with Python < 3.3:
>
> try:
> time.monotonic()
> exce
On Wed, Mar 14, 2012 at 10:21 AM, Guido van Rossum wrote:
> +1 for steady().
>
+1
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.so
/usr/lib/liblzma.so.2
/usr/lib/liblzma.so.2.0.0
I can live with that but if somebody can point me the way to build
python with lzma support please do.
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liblzma-dev has solved my problem.
Thank you, Senthil.
On Fri, Mar 16, 2012 at 7:38 PM, Senthil Kumaran wrote:
>
> On Fri, Mar 16, 2012 at 07:30:31PM -0700, Andrew Svetlov wrote:
>> When I build python from sources I have no lzma support (module _lzma
>> cannot be built).
>
iling list
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> http://mail.python.org/mailman/listinfo/python-dev
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Andrew Svetlov
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On Sun, Mar 25, 2012 at 12:04 PM, Stefan Krah wrote:
> Andrew Svetlov wrote:
>> I like to always see "Quick search" widget without scrolling page to
>> top. Is it possible?
>
> Do you mean a fixed search box like this one?
>
> http://coq.inria.fr/do
>
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h contains timezone info, supported
carefully and recommended to use with datetime standard module,
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