Stefan Krah added the comment:
Actually, I think we have to match the C-API: For instance, in
Modules/_decimal/_decimal.c:5527 the libmpdec allocators are
set to the Python allocators.
So I'd need to do:
mpd_callocfunc = PyMem_Calloc;
I suppose that's a commo
Stefan Krah added the comment:
>> 1. _asdict() returns a normal dictionary. I don't know if this is what
>>is required.
Good question. I don't think we can import OrderedDict from collections
because of the impact on startup time (_collections_abc was created
Stefan Krah added the comment:
This is probably offtopic, but I think people who want reliable
MemoryErrors can use limits, e.g. via djb's softlimit (daemontools):
$ softlimit -m 1 ./python
Python 3.5.0a0 (default:462470859e57+, Apr 27 2014, 19:34:06)
[GCC 4.7.2] on linux
Type
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Stefan Krah added the comment:
This looks like a duplicate.
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resolution: -> duplicate
stage: -> resolved
status: open -> closed
superseder: -> Android's incomplete locale.h implementation prevents
cross-compilation
_
Stefan Krah added the comment:
Ping. Is this still an issue for anyone in 3.4?
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Stefan Krah added the comment:
With the latest patch the decimal benchmark with a lot of small
allocations is consistently 2% slower. Large factorials (where
the operands are initialized to zero for the number-theoretic
transform) have the same performance with and without the patch.
It would
Stefan Krah added the comment:
Is accessing _fields a common operation? Personally I'd use a
PyGetSetDef and generate the tuple on access (perhaps cache the
result).
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Stefan Krah added the comment:
Hmm, obmalloc.c changed as well, so already the gcc optimizer can take
different paths and produce different results.
Also I did set mpd_callocfunc to PyMem_Calloc(). 2% slowdown is far
from being a tragic result, so I guess we can ignore that.
The bytes
New submission from Stefan Krah:
>>> x = Decimal(9).as_tuple()
>>> import pickle
>>> pickle.dumps(x)
Traceback (most recent call last):
File "", line 1, in
_pickle.PicklingError: Can't pickle :
attribute lookup DecimalTuple on _frozen_importli
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Stefan Krah added the comment:
I cannot reproduce this. Which platform? Does it happen with
Python 3.4?
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Stefan Krah added the comment:
Given msg84518 and msg118909 I think this can be closed.
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Stefan Krah added the comment:
Here's a cross-compile script for arm-linux-gnueabi. Building 3.4 works
on Ubuntu 14.04. I cannot run the tests, since I only have an old
Debian-ARM qemu image with the wrong glibc version.
For 3.5 we have a regression due to the new matrix ope
Stefan Krah added the comment:
The order of the nelem/elsize matters for readability. Otherwise it is
not intuitive what happens after the jump to redirect in _PyObject_Alloc().
Why would you assert that 'nelem' is one?
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Stefan Krah added the comment:
Okay, if no one else wants this, I'll go ahead with the _fields part.
Andrew, could you sign a contributor agreement?
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Stefan Krah added the comment:
Since Fedora 16 is EOL, let's close this.
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New submission from Stefan Krah:
We could remove decimal.InvalidContext, which is completely unused
both in decimal.py and _decimal.
--
messages: 217519
nosy: mark.dickinson, rhettinger, skrah
priority: normal
severity: normal
status: open
title: decimal.InvalidContext is unused
type
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Stefan Krah added the comment:
Okay, also it is easier to keep it. I was just busy with the exception
docs and found the InvalidContext situation slightly odd.
Of course, there is a very small chance that external software is
using it.
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stage: -> re
Stefan Krah added the comment:
Are we fixing these on a case by case basis or is it hopeless (msg146615)?
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New submission from Stefan Krah:
$ ./python -m pydoc heapq
Traceback (most recent call last):
File "/home/stefan/hg/cpython/Lib/runpy.py", line 170, in _run_module_as_main
"__main__", mod_spec)
File "/home/stefan/hg/cpython/Lib/runpy.py", line 85, in _run_c
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New submission from Stefan Krah:
In Python2.7, the cls parameter shows up in pydoc:
frombuf(cls, buf) from __builtin__.type
Construct a TarInfo object from a 512 byte string buffer.
In 3.5, it doesn't:
frombuf(buf, encoding, errors) from builtins.type
Constr
Stefan Krah added the comment:
Did you use the same locale settings?
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Stefan Krah added the comment:
Sorry, then I should have been more explicit: The failure only occurs
with LC_CTYPE=C.
--
title: pydoc heapq leaves terminal in an unusable state -> LC_CTYPE=C: pydoc
leaves terminal in an unusable state
___
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Stefan Krah added the comment:
I can also confirm the need to reset the terminal when using
a working locale and Ctrl-C.
So we have two issues then:
1) The UnicodeDecodeError should not happen.
2) pydoc behaves erratically after various exceptions.
In Python2.7 neither of the issues
Stefan Krah added the comment:
Victor, sure, maybe not right away. If you prefer to commit very soon,
I promise to do a post commit review.
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Stefan Behnel added the comment:
Works for me in 3.2 and 3.4, fails in 2.7, as reported.
I'll leave it to Eli to decide if this should get fixed in 2.7. In Py2, ET and
cET were different modules, so this could also be considered a missing feature
in cET. Given that it leads to a serialis
Stefan Behnel added the comment:
Ah, sorry, actually, it does not work in Py3.2:
>>> import xml.etree.cElementTree as cET
>>> root = cET.Element('root', attrib={'Name':'Root'})
>>> child = cET.SubElement(root, 'child', attrib={
Stefan Behnel added the comment:
According to issue 1572710, this is not a bug. The "attrib" argument is
supposed to be a positional argument, not a keyword argument. This makes sense,
given that arbitrary keyword arguments are accepted for additional XML
Changes by Stefan Krah :
--
assignee: skrah
components: Extension Modules
nosy: skrah
priority: normal
severity: normal
status: open
title: Add function signatures to _decimal
type: enhancement
versions: Python 3.5
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Stefan Krah added the comment:
Okay, thanks. I've used "$cls" for Decimal.from_float in 40b06a75d1c6,
and it appears to work already.
Feel free to close the issue (I don't know whether AC emits "$cls" or
if it should).
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Stefan Behnel added the comment:
Note that this has been fixed in Py3 already (Py3.3, I guess). The only
question is whether the behaviour will be changed in Py2.7.
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Stefan Krah added the comment:
On SPARC/suncc the flags in http://bugs.python.org/issue15963#msg170661
appear to work.
Also, we have several Solaris build slaves that don't core dump.
Some are offline, but you can click through to the ./configure
steps of past builds to see the build
Stefan Krah added the comment:
> Hmm... perhaps Stefan would like to set something up?
Being a correctness tool hipster, of course I already have the latest toy. :)
The patch works on Debian 64-bit + clang.
I can set up a VM. We may have to react quickly to some of the issues.
Then ag
Stefan Krah added the comment:
> By default AC emits "$type" for class methods, see dict_fromkeys in
> Objects/dictobject.c.
Thanks, good choice.
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Stefan Krah added the comment:
Antoine, if you send me the buildbot credentials, we can get started.
Environment vars:
CC=clang
ASAN_OPTIONS="allocator_may_return_null=1,handle_segv=0"
I suggest to compile the release build, just --with-address
Stefan Krah added the comment:
Why is the default encoding of POSIX wrong on a modern Linux system?
Today I installed Debian testing, and the first question of the
installer is to choose between "C" and "English" locales for the
install. This with the remark that the chose
Stefan Krah added the comment:
Thanks, Ned. I'm attaching a second version of the existing patch
with improved error handling and a fix for test_distutils, which
failed.
The result is slightly overcomplicated, so I came up with a
different approach in issue21121-3.diff. Tho
Changes by Stefan Krah :
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Stefan Krah added the comment:
STINNER Victor wrote:
> I don't see how to ensure that the terminal state is restored, even on error.
Python2 suppresses the exception until after normal exit (pressing 'q').
I think that behavior is better.
In Python3 you can also get the un
Stefan Krah added the comment:
The patch works well BTW. We can create another issue for the
general misbehavior of pydoc with other exceptions.
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Stefan Behnel added the comment:
LGTM, can't see a case where this might go wrong (errors and type checks are
handled before the added code).
It also seems a sufficiently common case to optimise it internally. The 2**n
spelling is easier to read and to get right than the shifting, so
Stefan Krah added the comment:
I did a post-commit review. A couple of things:
1) I think Victor and I have a different view of the calloc() parameters.
calloc(size_t nmemb, size_t size)
If a memory region of bytes is allocated, IMO 'nbytes' should be in the
place of &
Stefan Krah added the comment:
I forgot one thing:
5) If WITH_VALGRIND is defined, nbytes is uninitialized in _PyObject_Alloc().
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Stefan Krah added the comment:
Another thing:
6) We need some kind of prominent documentation that existing
programs need to be changed:
Python 3.5.0a0 (default:62438d1b11c7+, May 3 2014, 23:35:03)
[GCC 4.8.2] on linux
Type "help", "copyright", "credits" or
Stefan Krah added the comment:
> > 5) If WITH_VALGRIND is defined, nbytes is uninitialized in
> _PyObject_Alloc().
>
> Did you see my second commit? It's nlt already fixed?
I don't think so, I have revision 5d076506b3f5 here.
--
_
Stefan Krah added the comment:
STINNER Victor wrote:
> PyObject_Malloc(100) asks to allocate one object of 100 bytes.
Okay, then let's please call it:
_PyObject_Calloc(void *ctx, size_t nobjs, size_t objsize)
_PyObject_Alloc(int use_calloc, void *ctx, size_t nobjs, size_t
Stefan Krah added the comment:
> If you guys want this in 3.4.1, please get it checked in in the next, oh,
> eight hours.
I can't commit today. Perhaps one of you wants to take over (I think we all
agree that the third patch
Stefan Krah added the comment:
STINNER Victor wrote:
> My final commit includes an addition to What's New in Python 3.5 doc,
> including a notice in the porting section. It is not enough?
I'm not sure: The usual case with ABI changes is that extensions may segfault
if they are
Stefan Krah added the comment:
One more question:
I think it's nicer to add CFLAGS_NODIST to 'renamed_variables' in
Lib/sysconfig.py:265:
renamed_variables = ('CFLAGS', 'CFLAGS_NODIST', 'LDFLAGS', 'CPPFLAGS')
That way it's possib
Stefan Krah added the comment:
The current patch allows the user to specify e.g.:
CFLAGS_NODIST="-march=core2" ./configure
So it would be surprising to get:
>>> import sysconfig
>>> sysconfig.get_config_var('CFLAGS_NODIST')
''
Now,
Stefan Krah added the comment:
The VM is set up. It's on an external unreliable host though. :)
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Stefan Behnel added the comment:
The "avoid rebuilding" part doesn't seem to work for me. Source build currently
fails as follows:
"""
/bin/mkdir -p Include
python ./Parser/asdl_c.py -h Include ./Parser/Python.asdl
# Substitution happens here, as the compl
Stefan Behnel added the comment:
That fixes it. Thanks!
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Stefan Krah added the comment:
Closing due to lack of response.
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Stefan Krah added the comment:
This should be fixed now.
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superseder: -> HAVE_PY_SET_53BIT_PRECISION for m68k
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Stefan Krah added the comment:
I've run Evgeniy's example under Valgrind and changed it to import
various C extensions. Unfortunately they all leak more or less, so
perhaps we can revisit this when (if?) the PEP 3121 and PEP 384
changes have been i
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