Use your microphone, say "python" and save the file in your favorite
file format. Try for example Audacity. I suppose that you don't need
specific audio content and you don't need a huge file.
Victor
2013/9/11 Serhiy Storchaka :
> I work on enhancement of audio modules testing [1], and I need fre
2013/9/11 Steven D'Aprano :
> But the proposal is not for a case-insensitive dict. It is more general
> than that, with case-insensitivity just one specific use-case for such
> a transformative dict. Arguably the most natural, or at least obvious,
> such transformation, but there are others.
>
> I
2013/9/11 Ethan Furman :
> He isn't keeping the key unchanged (notice no white space in MAPPING), he's
> merely providing a function that will automatically strip the whitespace
> from key lookups.
transformdict keeps the key unchanged, see the first message:
>>> d = transformdict(str.lower)
Yes, but I'm not interested to write such doc.
Victor
Le 15 sept. 2013 10:34, "Georg Brandl" a écrit :
> On 08/28/2013 01:20 AM, victor.stinner wrote:
> > http://hg.python.org/cpython/rev/ef889c3d5dc6
> > changeset: 85420:ef889c3d5dc6
> > user:Vict
2013/9/16 Brett Cannon :
> Any reason why stat() can't get a keyword-only cached=True argument instead?
> Or have stat() never cache() but stat_cache() always so that people can
> choose if they want fresh or cached based on API and not whether some
> library happened to make a decision for them?
e to trace Python memory allocations
Version: $Revision$
Last-Modified: $Date$
Author: Victor Stinner
Status: Draft
Type: Standards Track
Content-Type: text/x-rst
Created: 3-September-2013
Python-Version: 3.4
Abstract
Add a new ``tracemalloc`` module to trace memory blocks allocated
2013/9/17 Victor Stinner :
> Issue tracking the implementation:
> http://bugs.python.org/issue18874
If you want to test the implementation, you can try the following repository:
http://hg.python.org/features/tracemalloc
Or try the patch attached on the issue #18874 on the Python default
v
benchmark.patch
Description: Binary data
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Oops, I wanted to send the patch to myself, not to the python-dev
mailing list, sorry :-)
(It's a set of patch to try to optimize the tracemalloc module.)
Victor
2013/9/18 Victor Stinner :
>
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2013/9/20 Jesus Cea :
> """
> sys.intern(b'12121212')
> Traceback (most recent call last):
> File "", line 1, in
> TypeError: must be str, not bytes
> """
>
> I wonder why.
Intern strings optimize dictionary lookup. In Python 3, most
dictionaries use str keys (ex: __dict__ of classes).
What wo
I don't like having to browse the source code to read the documentation. I
prefer short docstring and longer reST documentation. In ReST, you get a
table of content and nice links to functions, modules, etc.
When I read doc, I like having two levels: tutorial listing most important
functions and p
I don't remember where, but I remember that I also saw things like
"str=str, len=len, ...". So you keep the same name, but you use fast
local lookups instead of slow builtin lookups.
Victor
2013/10/2 Antoine Pitrou :
> On Wed, 2 Oct 2013 18:16:48 +0200 (CEST)
> serhiy.storchaka wrote:
>> http:/
nd releases the
memory earlier thanks to a new memory pool (only used by the module).
PEP: 454
Title: Add a new tracemalloc module to trace Python memory allocations
Version: $Revision$
Last-Modified: $Date$
Author: Victor Stinner
Status: Draft
Type: Standards Track
Content-Type: text/x-rst
Cr
2013/10/3 Christian Heimes :
> A hash algorithm can be added and one avaible hash
> algorithm can be set before Py_Initialize() is called for the first
> time.
"Py_Initialize" is not the good guard. Try for example "python3 -X
faulthandler": PyObject_Hash() is called before Py_Initialize() to add
2013/10/4 Armin Rigo :
> The current hash randomization is
> simply not preventing anything; someone posted long ago a way to
> recover bit-by-bit the hash randomized used by a remote web program in
> Python running on a server.
Oh interesting, is it public? If yes, could we please search the URL
2013/10/4 Raymond Hettinger :
> * Another issue is that we're accumulating too many dictionary
> variants and that is making it difficult to differentiate and choose
> between them. I haven't found anyone (even in advanced classes
> with very experienced pythonistas) would knew about
> all the var
2013/10/5 Larry Hastings :
> On 10/04/2013 11:15 AM, Victor Stinner wrote:
>
> 2013/10/4 Armin Rigo :
>
> The current hash randomization is
> simply not preventing anything; someone posted long ago a way to
> recover bit-by-bit the hash randomized used by a remote web progra
2013/10/4 :
>
> Quoting Victor Stinner :
>
>> I still fail to understand the real impact of a hash DoS compared to
>> other kinds of DoS.
>
>
> I think the key question is: how many attacking nodes do you need to
> control to effectively make some system deny ser
2013/10/4 Raymond Hettinger >:
> Please do conduct your own API tests and report back.
I don't understand why there is a need to evaluate a "new" API:
TransformDict has the same API than dict. The only differences are that the
constructor takes an extra mandatory parameter and there is a new getit
The str type is immutable, bytearray is not. It's easier to justify
optimisations on mutable types, like overallocate lists for example.
Victor
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Hi,
Slowly, I'm trying to see if it would be possible to reduce the memory
footprint of Python using the tracemalloc module.
First, I noticed that linecache can allocate more than 2 MB. What do
you think of adding a registry of "clear cache" functions? For
exemple, re.purge() and linecache.clearc
2013/10/6 Benjamin Peterson :
> 2013/10/6 Victor Stinner :
>> Hi,
>>
>> Slowly, I'm trying to see if it would be possible to reduce the memory
>> footprint of Python using the tracemalloc module.
>>
>> First, I noticed that linecache can allocate more
Benjamin wrote:
> Is it important to optimize unittests for memory usage?
2013/10/6 Georg Brandl :
> That does not seem very important, except if people execute test_import
> on every interpreter startup :)
Oh, I just realized that I forgot to explain why I'm starting with
unit tests. I ran the P
2013/10/6 :
> Quoting Antoine Pitrou :
>
>> The linecache module is used implicitly by the traceback and warnings
>> module, so perhaps quite a bit more than one would imagine :-)
>>
>> I think limiting the linecache cache size would be good enough.
>
> So what specific limit would you suggest?
B
2013/10/3 Victor Stinner :
> I worked on the implementation of the tracemalloc module and its PEP
> 454. I consider that this third version of the PEP is ready for a
> final review.
>
> HTML version of the PEP 454:
> http://www.python.org/dev/peps/pep-0454/
About the implementa
2013/10/3 Victor Stinner :
> I worked on the implementation of the tracemalloc module and its PEP
> 454. I consider that this third version of the PEP is ready for a
> final review.
>
> What should be done to finish the PEP?
I splitted the module into two parts. Do you prefer the n
Hi,
In an old issue, I proposed a change to not load the sysconfig module
when it's not needed. Nobody reviewed the patch, the issue was closed.
http://bugs.python.org/issue14057
When -s or -I option is used, we may skip completly the sysconfig
module. (It's already the case when -S is used.)
B
[We are discussing issue #15806.]
2013/10/11 Antoine Pitrou :
> I don't think that this contextlib.ignore() thing has been discussed a
> lot.
If we decide to keep the feature, I would prefer a less generic name:
contextlib.ignore_excep(), contextlib.ignore_exception() or
contextlib.ignore_excepti
2013/10/11 Antoine Pitrou :
>> So the first step I tried is something horrible (typing from memory):
>>
>> try:
>> import _decimal
>> except ImportError:
>>
>> else:
>> from _decimal import *
>>
>> That way the 2.21 msec are reduced to 912 usec, but the indentation is
>> an abomination
Hi,
What do you think of adding an optional identifier to a PEP to get a
readable URL?
Example:
http://www.python.org/dev/peps/qualname/
instead of
http://www.python.org/dev/peps/pep-0395/
Other examples:
305: csv
450: statistics
3156: asyncio
An identifier must only contain lower case l
2013/10/12 Guido van Rossum :
> What's the use case? I just use Google search if I don't recall the PEP
> number.
The final goal would be to identify PEPs using a textual identifier
instead of a number identifier.
We now have 206 PEPs (341 if you count also deferred and rejected
PEPs). It's not e
2013/10/12 Ben Finney :
> Victor Stinner writes:
>
>> For draft PEP, the identifier may change.
>
> For an idea implemented in several PEPs, the obvious identifier may be
> taken first, but the preferred PEP for that identifier may later change.
>
> For example, PEP
2013/10/12 Ethan Furman :
>> What do you propose in cases like this? Should the keyword always refer
>> to the same PEP it did in the past, even when that PEP is no longer as
>> relevant given later PEPs? Or should the keyword reach a different,
>> newer PEP if that newer PEP becomes a “more releva
2013/10/12 Nick Coghlan :
>> summary:
>> Issue #19209: fix structseq test
>>
>> diff --git a/Lib/test/test_structseq.py b/Lib/test/test_structseq.py
>> --- a/Lib/test/test_structseq.py
>> +++ b/Lib/test/test_structseq.py
>> @@ -38,7 +38,7 @@
>> # os.stat() gives a complicated struct sequ
Hi,
The DNS server of python.org announce the IP address 2a01:4f8:131:2480::3:
$ host -t bugs.python.org
bugs.python.org has IPv6 address 2a01:4f8:131:2480::3
The problem is that I cannot connect to this IP address:
$ ping6 -c 4 2a01:4f8:131:2480::3
PING 2a01:4f8:131:2480::3(2a01:4f8:131:
2013/10/13 Antoine Pitrou :
> On Sun, 13 Oct 2013 22:50:07 +1000
> Nick Coghlan wrote:
>> That's the way this works (unless you think this is such a disastrous
>> addition that you want to appeal to Guido to strip me of my
>> responsibilities as contextlib maintainer and go hunting for a new
>> on
2013/10/13 Ethan Furman :
> True, but Raymond's example of
>
> with ignore(OSError):
> os.remove('somefile')
And what about:
with ignore(OSError):
os.remove('file1')
os.remove('file2')
?
Victor
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Le 13 oct. 2013 10:19, "Stefan Behnel" a écrit :
> I agree. I find it much easier to read a plain and obvious
>
> try:
>from _cmodule import *
> except ImportError:
>from _pymodule import *
>
> in a facade module ...
I miss maybe something. I don't understand why you would
I opened an issue proposing exactly the same change, but I didn't provide a
patch. Thanks for working on the issue.
(Sorry I don't know the issue number. Search for "zipfile encoding".)
Victor
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Belopolsky :
> On Mon, Oct 14, 2013 at 6:13 PM, Victor Stinner
> wrote:
>> I opened an issue proposing exactly the same change, but I didn't provide a
>> patch.
>
> I found this:
>
> http://bugs.python.org/issue10614
>
> but it has (seemingly inc
CONGRATULATION! This thread reached 100 mails, it's now time to
summarize it into a PEP. Is there a candidate to write it?
If no PEP is written, the thread will never die and people will
continue to feed it.
Victor
2013/10/11 Antoine Pitrou :
>
> Hello,
>
> On Fri, 11 Oct 2013 07:39:48 +0200 (CE
2013/10/16 Raymond Hettinger :
> FWIW, here's a little history:
Thank you! It helped me to understand the story.
> * In February, I presented ignore() in the keynote for the U.S. Pycon.
> Again, the feedback was positive.
I missed this edition of Pycon US. How did you feedback on the keynote?
I might agree with idea of contextlib.ignore() (I'm still opposed to
the idea), but I don't understand the purpose of adding a new syntax
doing exactly the same than try/except:
> with trap(OSError) as cm:
> os.unlink('missing.txt')
> if cm.exc:
> do_something()
Nobody not
2013/10/16 Antoine Pitrou :
>> By the way, what are the performances of contextlib.ignore()?
>> Exceptions can be slow in some cases. Adding something even slower
>> would not be a good idea.
>
> A "try" block which succeeds is fast.
Ah yes, I never reminder this fact. I try to not care too much o
I would rewrite your examples using try/finally:
try:
try:
os.unlink('missing.txt')
finally:
some
other
code
except OSError as exc:
do_something()
It's differently than yours, because it catchs OSError on "some; other
sys.stdout.encoding must never be None, it must be a str. If it is None, it
is a regression. I modified Python (maybe in 3.2) to ensure that .encoding
is always set.
For your failure: what is the locale encoding? What are the values of
LC_ALL, LANG, LC_CTYPES and PYTHONIOENCODING env vars?
I will
memory allocations
Version: $Revision$
Last-Modified: $Date$
Author: Victor Stinner
Status: Draft
Type: Standards Track
Content-Type: text/x-rst
Created: 3-September-2013
Python-Version: 3.4
Abstract
This PEP proposes to add a new ``tracemalloc`` module to trace memory
blocks allocated by
> Abstract
>
>
> This PEP changes the default class definition namespace to ``OrderedDict``.
> Furthermore, the order in which the attributes are defined in each class
> body will now be preserved in ``type.__definition_order__``. This allows
> introspection of the original definition ord
Hi,
> Currently, the ``bytes`` and ``bytearray`` constructors accept an integer
> argument and interpret it as meaning to create a zero-initialised sequence
> of the given size::
> (...)
> This PEP proposes to deprecate that behaviour in Python 3.6, and remove it
> entirely in Python 3.7.
I'm opp
keep supporting MSVC.
>
> --Guido (mobile)
>
> On Jun 7, 2016 12:39 PM, "Sturla Molden" wrote:
>>
>> Victor Stinner wrote:
>>
>> > Is it worth to support a compiler that in 2016 doesn't support the C
>> > standard released in 1999, 1
2016-06-08 23:01 GMT+02:00 Neil Schemenauer :
> - code coming out of 2to3 runs correctly on this modified Python
Stop using 2to3. This tool adds many useless changes when you only
care of Python 2.7 and Python 3.4+. I suggest to use better tools like
2to6, modernize or my own tool:
https://pypi.py
I understood that Christian Heimes and/or Donald Stufft are interested
to work on a PEP.
2016-06-09 13:25 GMT+02:00 Larry Hastings :
> A problem has surfaced just this week in 3.5.1. Obviously this is a good
> time to fix it for 3.5.2. But there's a big argument over what is "broken"
> and what
Hi,
Last weeks, I made researchs on how to get stable and reliable
benchmarks, especially for the corner case of microbenchmarks. The
first result is a serie of article, here are the first three:
https://haypo.github.io/journey-to-stable-benchmark-system.html
https://haypo.github.io/journey-to-st
I started to work on visualisation. IMHO it helps to understand the problem.
Let's create a large dataset: 500 samples (100 processes x 5 samples):
---
$ python3 telco.py --json-file=telco.json -p 100 -n 5
---
Attached plot.py script creates an histogram:
---
avg: 26.7 ms +- 0.2 ms; min = 26.2 ms
2016-06-10 17:09 GMT+02:00 Paul Moore :
> Also, the way people commonly use
> micro-benchmarks ("hey, look, this way of writing the expression goes
> faster than that way") doesn't really address questions like "is the
> difference statistically significant".
If you use the "python3 -m perf compar
2016-06-10 20:47 GMT+02:00 Meador Inge :
> Apologies in advance if this is answered in one of the links you posted, but
> out of curiosity was geometric mean considered?
>
> In the compiler world this is a very common way of aggregating performance
> results.
FYI I chose to store all timings in th
Hi,
2016-06-10 20:37 GMT+02:00 Kevin Modzelewski via Python-Dev
:
> Hi all, I wrote a blog post about this.
> http://blog.kevmod.com/2016/06/benchmarking-minimum-vs-average/
Oh nice, it's even better to have different articles to explain the
problem of using the minimum ;-) It added it to my doc.
> I repeat for like the fifth time:
So, is there a candidate to write a PEP?
I didn't read the thread. As expected, the discussion restarted for the 3rd
time, there are almost 100 emails in this thread.
Victor
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uin 2016 5:11 PM, "Steven D'Aprano" a écrit :
> Is this right? I thought we had decided that os.urandom should *not*
> fall back on getrandom on Linux?
>
>
>
> On Tue, Jun 14, 2016 at 02:36:27PM +, victor. stinner wrote:
> > https://hg.python.org
To port OpenStack to Python 3, I wrote 4 (2x2) helper functions which
accept bytes *and* Unicode as input. xxx_as_bytes() functions return bytes,
xxx_as_text() return Unicode:
http://docs.openstack.org/developer/oslo.serialization/api.html
Victor
Le 14 juin 2016 5:21 PM, "Steven D'Aprano" a écrit
Le 14 juin 2016 5:28 PM, "Jelle Zijlstra" a
écrit :
>The problem isn't that os.urandom() uses getrandom(), it's that it calls
it in a mode that may block.
Except if it changed very recently, os.urandom() doesn't block anymore
thanks to my previous change ;-)
Victor
__
Python has a peephole optimizer which does not remove dead code that it
just created.
Victor
Le 18 juin 2016 23:14, "Obiesie ike-nwosu via Python-Dev" <
python-dev@python.org> a écrit :
> Hi,
>
> Could some one give a hand with explaining to me why we have a
> JUMP_ABSOLUTE followed by a JUMP_FOR
When loading truncated data with pickle, I expect a pickle error, not a
generic ValueError nor EOFError.
Victor
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Hi,
asyncio is a good example because it wants to evolve faster than the
whole "CPython package". Each minor version of CPython adds news
features in asyncio. It is not always easy to document these changes.
Moreover, the behaviour of some functions also changed in minor
versions.
asyncio doesn't
Hi,
I see many PEPs accepted for Python 3.6, or stil in draft status, but
only a few final PEPs. What is happening?
Reminder: the deadline for new features in Python 3.6 is 2016-09-12,
only in 2 months and these 2 months are summer in the northern
hemisphere which means holiday for many of them..
rg/dev/peps/pep-0451/
(this one was already implemented in Python 3.4)
Victor
2016-07-12 11:30 GMT+02:00 Chris Angelico :
> On Tue, Jul 12, 2016 at 7:26 PM, Victor Stinner
> wrote:
>> "PEP 499 -- python -m foo should bind sys.modules['foo'] in addition
>> to sys.mo
Oh, the first one is a regression that I introduced in the
implementation of the PEP 475 (retry syscall on EINTR). I don't think
that it can be triggered in practice, because socket handles on
Windows are small numbers, so unlikely to be seen as negative.
I just fixed it:
https://hg.python.org/cpy
2016-07-22 18:21 GMT+02:00 Random832 :
>> I just fixed it:
>> https://hg.python.org/cpython/rev/6c11f52ab9db
>
> Does INVALID_SOCKET exist on non-windows systems?
Yes, it was already used in almost all places.
When I read again the code, in fact I found other places with "fd < 0"
or "fd = -1". I
Hi,
tl;dr I found a way to make CPython 3.6 faster and I validated that
there is no performance regression. I'm requesting approval of core
developers to start pushing changes.
In 2014 during a lunch at Pycon, Larry Hasting told me that he would
like to get rid of temporary tuples to call functio
2016-08-09 0:40 GMT+02:00 Guido van Rossum :
>> tl;dr I found a way to make CPython 3.6 faster and I validated that
>> there is no performance regression.
>
> But is there a performance improvement?
Sure.
On micro-benchmarks, you can see nice improvements:
* getattr(1, "real") becomes 44% faste
2016-08-09 0:40 GMT+02:00 Guido van Rossum :
> Hm, I agree that those tuples are probably expensive. I recall that
> IronPython boasted faster Python calls by doing something closer to the
> platform (in their case I'm guessing C# or the CLR :-).
To be honest, I didn't expect *any* speedup just by
2016-08-09 1:36 GMT+02:00 Brett Cannon :
> I just wanted to say I'm excited about this and I'm glad someone is taking
> advantage of what Argument Clinic allows for and what I know Larry had
> initially hoped AC would make happen!
To make "Python" faster, not only a few specific functions, "all" C
Hi,
FYI I made a tiny enhancement in the subprocess module in Python 3.6:
Popen destructor now logs a ResourceWarning if the child process is
still running when the destructor is called. Keeping a child process
in background is bad because it is likely to create zombi process,
because Python will
Hi,
I pushed the most basic implementation of _PyObject_FastCall(), it
doesn't support keyword parameters yet:
https://hg.python.org/cpython/rev/a1a29d20f52d
https://bugs.python.org/issue27128
Then I patched a lot of call sites calling PyObject_Call(),
PyObject_CallObject(), PyEval_CallObject(),
2016-08-22 10:01 GMT+02:00 Victor Stinner :
> The next step is to support keyword parameters. In fact, it's already
> supported in all cases except of Python functions:
> https://bugs.python.org/issue27809
Serhiy Storchaka proposed to use a single C array for positional and
key
Oh, I found a nice pice of CPython history in Modules/_pickle.c.
Extract of Python 3.3:
-
/* A temporary cleaner API for fast single argument function call.
XXX: Does caching the argument tuple provides any real performance benefits?
A quick benchmark, on a 2.0GHz Athlon64 3
Hi,
tl; dr: just drop byte support and help developers to use Unicode in
their application!
As you may already know, I dislike your whole project. But first of
all, IMHO you should open a separated thread to discuss changes
related to the Windows console. I consider that they are unrelated,
well
2016-08-20 21:31 GMT+02:00 Nick Coghlan :
> Reading your summary meant this finally clicked with something Victor
> has been considering for a while: a "Force UTF-8" switch that told
> Python to ignore the locale encoding on Linux, and instead assume
> UTF-8 everywhere (command line parameter parsi
2016-08-24 17:44 GMT+02:00 Steve Dower :
> I know Nick and Victor like the idea of a -X flag (or a direct -utf8 flag),
> but I prefer more specific environment variables:
>
> - PYTHONWINDOWSLEGACYSTDIO (for the console changes)
> - PYTHONWINDOWSLEGACYPATHENCODING (assuming getfilesystemencoding() i
Le 30 août 2016 03:10, "Nick Coghlan" a écrit :
> However, this view is also why I don't agree with being aggressive in
> making this behaviour the default on Windows - I think we should make
> it readily available as a provisional feature through a single
> cross-platform command line switch and
2016-08-30 16:31 GMT+02:00 Steve Dower :
> It's the
> random user on Windows who installed their library that has the problem.
> They don't know the fix, and may not know how to apply it (e.g. if it's
> their Jupyter notebook that won't find one of their files - no obvious
> command line options he
Le 30 août 2016 8:05 PM, "Nick Coghlan" a écrit :
> This seems to be the crux of the disagreement: our perceptions of the
> relative risks to native Windows Python applications that currently
> work properly on Python 3.5 vs the potential compatibility benefits to
> primarily *nix applications tha
2016-08-30 23:51 GMT+02:00 Victor Stinner :
> As I already wrote once, my problem is also tjat I simply have no idea how
> much Python 3 code uses bytes filename. For example, does it concern more
> than 25% of py3 modules on PyPi, or less than 5%?
I made a very quick test on Window
I made another quick&dirty test on Django 1.10 (I ran Django test
suite on my modified Python raising exception on bytes path): I didn't
notice any exception related to bytes path.
Django seems to only use Unicode for paths.
I can try to run more tests if you know some other major Python
applicat
The PEP 445, C API for malloc, allows to plug multiple wrappers and each
wrapper has its own "void* context" data. When you register a new wrapper,
you store the current context and function to later chain it.
See the hooks example:
https://www.python.org/dev/peps/pep-0445/#use-case-3-setup-hooks-
2016-09-01 21:36 GMT+02:00 Ethan Furman :
> Abstract
>
>
> This PEP proposes five small adjustments to the APIs of the ``bytes`` and
> ``bytearray`` types to make it easier to operate entirely in the binary
> domain:
You should add bchr() in the Abstract.
> * Deprecate passing single in
2016-08-31 22:31 GMT+02:00 Christian Heimes :
> https://bugs.python.org/issue27744
> Add AF_ALG (Linux Kernel crypto) to socket module
This patch adds a new socket.sendmsg_afalg() method on Linux.
"afalg" comes from AF_ALG which means "Address Family Algorithm". It's
documented as "af_alg: User-s
2016-09-02 0:04 GMT+02:00 Ethan Furman :
> - `fromord` to replace the mistaken purpose of the default constructor
To replace a bogus bytes(obj)? If someone writes bytes(obj) but expect
to create a byte string from an integer, why not using bchr() to fix
the code?
Victor
__
2016-09-02 8:49 GMT+02:00 Sajjanshetty, Amresh :
> I’m using asyncio and paramiko to multiplex different channels into a single
> SSH connection.
Hum, asyncio found bugs in CPython. Please try with a more recent
version of CPython than 3.4.3 :-/
> Program terminated with signal 11, Segmentation f
Oh, I forgot to mention that it would help to get the Python traceback
on the crash. Try faulthandler: add faulthandler.enable() at the
beginning of your program.
https://docs.python.org/dev/library/faulthandler.html
Maybe I should write once tools to debug such bug :-)
Victor
___
Yes, this was my point: I don't think that we need a bytearray method to
create a mutable string from a single byte.
Victor
Le samedi 3 septembre 2016, Random832 a écrit :
> On Fri, Sep 2, 2016, at 19:44, Ethan Furman wrote:
> > The problem with only having `bchr` is that it doesn't help with
>
Hi,
I just spoke with Steve Dower (thanks for the current sprint!) about
the PEP 528. We somehow agreed that we need to push his implementation
of the PEP right now to get enough time to test as much applications
as possible on Windows to have a wide view of possible all
regressions.
The hope is
2016-09-07 10:56 GMT-07:00 Benjamin Peterson :
> To conclude our discussion about using C99 features, I've updated PEP 7
> to allow the following features:
> - Standard integer types in and
> - ``static inline`` functions
> - designated initializers
> - intermingled declarations
> - boole
Hi,
I pushed INADA Naoki's implementation of the "compact dict". The hash
table now stores indices pointing to a new second table which contains
keys and values: it adds one new level of indirection. The table of
indices is "compact": use 1, 2, 4 or 8 bytes per indice depending on
the size of the
2016-09-08 13:36 GMT-07:00 Guido van Rossum :
> IIUC there's one small thing we might still want to change somewhere
> after 3.6b1 but before 3.6rc1: the order is not preserved when you
> delete some keys and then add some other keys. Apparently PyPy has
> come up with a clever solution for this, a
2016-09-09 10:17 GMT-07:00 Guido van Rossum :
> - keyword args are ordered
> - the namespace passed to a metaclass is ordered by definition order
> - ditto for the class __dict__
Maybe we should define exactly "ordered" somewhere the language reference:
https://docs.python.org/dev/reference/index.
Hi,
Currently, Python has 3 C API:
* python core API
* regular API: subset of the core API
* stable API (ABI?), the Py_LIMITED_API thing: subset of the regular API
For practical purpose, all functions are declared in Include/*.h.
Basically, Python exposes "everything". There are private function
2016-09-10 23:24 GMT-04:00 Nick Coghlan :
> To conform with the updated language spec, implementations just need
> to use collections.OrderedDict in 3 places:
>
> (...)
> - storage type for passing kwargs to functions
I'm not sure about the "just need" for this one, especially if you
care of perfo
2016-09-10 3:49 GMT-04:00 Ethan Furman :
> With __definition_order__ Enum can display the actual creation order of enum
> members and methods, while relying on Enum.__dict__.keys() presents a
> jumbled mess with many attributes the user never wrote, the enum members
> either
> appearing /after/ al
2016-09-12 8:23 GMT+02:00 Benjamin Peterson :
> That seems like a good idea in abstract. However, the boundaries will
> have to be delineated. Many functions beginning _Py are effectively part
> of the public API even for "well-behaved" 3rd-party extensions
Oh ok, that's also what I expected.
So
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