New submission from STINNER Victor :
Attached patch modifies the following function to emit a DeprecationWarning:
* PyUnicode_GET_SIZE() (and so PyUnicode_GET_DATA_SIZE())
* PyUnicode_AS_UNICODE()
* PyUnicode_AsUnicodeAndSize() (and so PyUnicode_AsUnicode())
* PyUnicode_FromUnicode
STINNER Victor added the comment:
Alex ? Florent ?
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STINNER Victor added the comment:
Can you try to patch platform.py with the following patch?
diff --git a/Lib/platform.py b/Lib/platform.py
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -186,7 +186,7 @@ def libc_ver(executable=sys.executable,l
elif so:
if lib != '
STINNER Victor added the comment:
I got the debug output of test_3_join_in_forked_from_thread() using some hacks
(threading._VERBOSE=True and don't hide subprocess output):
Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0,
dont_write_bytecode=0, no_user_s
STINNER Victor added the comment:
Hum, it's better with the process identifiers. Oh, by the way: the output is
not truncated, Python test hangs during the second run :-) Without the debug
output, it needs more than 1,000 runs to reproduce the
bug (hang).
Testing with flags: sys.flags(
Changes by STINNER Victor :
--
Removed message: http://bugs.python.org/msg148991
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Removed message: http://bugs.python.org/msg148992
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STINNER Victor added the comment:
I removed my two previous message (msg148991 and msg148992), there were
unrelated to this issue: the test hangs in debug mode in the IO module because
of a deadleak in IO related to the fork...
--
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Python
STINNER Victor added the comment:
By the way, _Py_stat() can fail because of a Python error: -1 result is not
handled in import.c :-( It may leak to the "XXX undetected error" message.
--
nosy: +haypo
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Python tracker
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New submission from STINNER Victor :
The threading module uses an hack to log actions to help debugging. The log
depends on 3 flags: __debug__, threading._VERBOSE and a verbose attribute (each
threading class has such attribute). By default, _note() is always called but
does nothing: it
Changes by STINNER Victor :
Added file: http://bugs.python.org/file23870/threading_note_global.patch
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Pytho
Changes by STINNER Victor :
Removed file: http://bugs.python.org/file23870/threading_note_global.patch
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STINNER Victor added the comment:
(threading_note_global.patch was completly wrong, here is the fixed version)
--
Added file: http://bugs.python.org/file23871/threading_note_global.patch
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STINNER Victor added the comment:
I hacked setup.py and _cursesmodule.c to use XPG4 curses. It requires many
hacks because it lacks functions like getattrs() or getsyx/setsyx, constant
like KEY_MIN and KEY_MAX. It looks difficult to use this curses library
New submission from STINNER Victor :
The _curses module has two issues on OpenSolaris:
- using the default curses library, mvwchgat() cannot be found and _curses
module compilation fails
- there is a "XPG4 curses" library. I tried to use it using various hacks in
_cursesmo
STINNER Victor added the comment:
> I am still concerned about the compilation warning in OpenIndiana buildbots
> :-(
I'm unable to reproduce the issue in my OpenIndiana VM: the compilaton of the
_curses module fail, not because of Unicode, but because mvwchgat() function is
mis
STINNER Victor added the comment:
I opened the issue #13552 to list all curses issues on OpenIndiana.
--
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Python tracker
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STINNER Victor added the comment:
curses_hacks.patch: various hacks to use the XPG4 curses on OpenIndiana.
--
keywords: +patch
nosy: +enchanter
Added file: http://bugs.python.org/file23873/curses_hacks.patch
___
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<h
STINNER Victor added the comment:
The code has been commited. The remaining task is to fix OpenIndiana issues:
see #13552.
--
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Changes by STINNER Victor :
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resolution: -> fixed
status: open -> closed
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STINNER Victor added the comment:
localeconv_wchar.c: test program to dump the thousands separator on a locale
specified on the command line. I wrote this program to try to reproduce the
hu_HU issue, but I cannot reproduce it on OpenIndiana. I only have UTF-8
locales on my OpenIndiana VM
STINNER Victor added the comment:
Some comments about 2011-12-08-tarfile-lzma.diff:
> elif self.buf.startswith(b"\x5d\x00\x00\x80") or self.buf.startswith(b"...
Micro-optimization: you can use self.buf.startswith((b"\x5d\x00\x00\x80",
b"\xfd7zXZ")) here
STINNER Victor added the comment:
See also the issue #7442.
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STINNER Victor added the comment:
Oh! I think that I understood the problem: if HAVE_WCSFTIME is not defined,
timemodule.c uses strftime(), instead of wcsftime(), encode input format and
decode the format. It uses UTF-8 to encode/decode, whereas the right encoding
is the locale encoding
STINNER Victor added the comment:
Changeset 489ea02ed351 changed PyUnicode_FromWideChar() and
PyUnicode_FromUnicode(): raise a ValueError if a character in not in range
[U+; U+10].
test__locale errors:
==
ERROR
New submission from STINNER Victor :
To decode byte string from the locale encoding (LC_CTYPE),
PyUnicode_DecodeFSDefault() can be used, but this function uses a constant
encoding set at startup (the locale encoding at startup). The right method is
currently to call _Py_char2wchar() and then
Changes by STINNER Victor :
--
keywords: +patch
Added file: http://bugs.python.org/file23886/pyunicode_decodelocale.patch
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STINNER Victor added the comment:
I collected the locale list triggering the mbstowcs() bug thanks my previous
commit:
* hu_HU (ISO8859-2): character U+3020
* de_AT (ISO8859-1): character U+3076
* cs_CZ (ISO8859-2): character U+3020
* sk_SK (ISO8859-2): character U+3020
STINNER Victor added the comment:
@Serg Asminog: What is your Python version? What is your locale encoding
(print(sys.getfilesystemencoding())? What is your Windows version?
--
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Python tracker
<http://bugs.python.org/issue4
New submission from STINNER Victor :
[333/363] test_multiprocessing
Timeout (1:00:00)!
Thread 0x000112d0b000:
File
"/Users/buildbot/buildarea/3.x.parc-snowleopard-1/build/Lib/multiprocessing/connection.py",
line 411 in _recv
File
"/Users/buildbot/buildarea/3.x.parc-snow
STINNER Victor added the comment:
I didn't see this failure again since the issue was opened, so I close it as
invalid.
--
resolution: -> invalid
status: open -> closed
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STINNER Victor added the comment:
The Solaris buildbot is green, let's close it. I didn't report the bug
upstream. Feel free to report it to Oracle!
--
resolution: -> fixed
status: open -> closed
___
Python tracker
<htt
STINNER Victor added the comment:
Oops, it's not sys.getfilesystemencoding(), but locale.getpreferredencoding()
which is interesting. Can you give me your locale encoding?
--
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STINNER Victor added the comment:
> I wrote down when I set up the OpenIndiana buildbots
Hum, please use the issue #13552 for curses issues on OpenIndiana/Solaris.
> ... de funciones: "mvwchgat" y "wchgat"
See issues #3786 and #13552 for this problem.
> I insta
Changes by STINNER Victor :
--
resolution: -> fixed
status: open -> closed
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STINNER Victor added the comment:
I fixed issue #5905 (strptime fails in non-UTF locale). The fix is not enough
if the locale is changed in Python.
Update the patch to fix time.strftime() (if wcsftime() is not available).
--
Added file: http://bugs.python.org/file23894
STINNER Victor added the comment:
The FreeBSD 7.2 3.x buildbot is green.
--
resolution: -> fixed
status: open -> closed
___
Python tracker
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STINNER Victor added the comment:
Le 09/12/2011 22:12, Stefan Krah a écrit :
> The bottleneck in _decimal is (res is ascii):
>
> PyUnicode_FromString(res);
>
> PyUnicode_DecodeASCII(res) has the same performance.
>
>
> With this function ...
>
>static PyObj
New submission from STINNER Victor :
http://www.python.org/dev/buildbot/all/builders/ARM%20Ubuntu%203.x/builds/143/steps/test/logs/stdio
---
test test_curses crashed -- Traceback (most recent call last):
File
"/var/lib/buildbot/buildarea/3.x.warsaw-ubuntu-arm/build/Lib/test/regrte
STINNER Victor added the comment:
The compilation of the module failed for the same reason:
building '_curses' extension
gcc -pthread -fPIC -Wno-unused-result -g -O0 -Wall -Wstrict-prototypes
-DHAVE_NCURSESW=1 -I/usr/include/ncursesw -IInclude -I. -I./Include
-I/usr/include/arm-lin
STINNER Victor added the comment:
The problem comes maybe from the name of a curses key, keyname().
PyInit__curses() gets the name of all keys (KEY_MIN..KEY_MAX).
--
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STINNER Victor added the comment:
Hum, it's still not ok:
==
FAIL: test_tzset (test.test_time.TimeTestCase)
--
Traceback (most recent call last):
STINNER Victor added the comment:
Can you please write a doc patch?
--
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STINNER Victor added the comment:
.. versionchanged:: 3.2
- The *strict* parameter is deprecated. HTTP 0.9-style "Simple Responses"
+ The *strict* parameter is removed. HTTP 0.9-style "Simple Responses"
are not supported anymore.
Such change looks wrong:
STINNER Victor added the comment:
@Barry: can you try to get a trace using gdb? Start python in gdb, set a
breapoint on PyErr_SetObject, continue, run the Python command "import
_curses", get the gdb traceback (or continue if the error is not the UT
Changes by STINNER Victor :
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nosy: +haypo
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STINNER Victor added the comment:
> How different is the performance cost of this solution compared
> to inserting DTrace probe for the same purpose?
DTrace is only available on some platforms (Solaris and maybe FreeBSD?).
--
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Python t
New submission from STINNER Victor :
Attached patch fixes Makefile.pre.in to only recompile Lib/_sysconfigdata.py
when needed.
--
files: sysconfigdata.patch
keywords: patch
messages: 149406
nosy: haypo, pitrou
priority: normal
severity: normal
status: open
title: Only recompile Lib
Changes by STINNER Victor :
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components: +Build
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STINNER Victor added the comment:
Various comments of the PEP 393 and your patch.
"For compatibility with existing APIs, several representations
may exist in parallel; over time, this compatibility should be phased
out."
and
"For compatibility, redundant representations may b
STINNER Victor added the comment:
> The patch in msg<148968> solves the issue for me.
Cool, I applied the patch to Python 3.2 and 3.3.
--
resolution: -> fixed
status: open -> closed
___
Python tracker
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STINNER Victor added the comment:
changeset: 74002:279b0aee0cfb
user:Victor Stinner
date:Fri Dec 16 23:56:01 2011 +0100
files: Doc/c-api/unicode.rst Include/unicodeobject.h
Modules/_localemodule.c Modules/main.c Modules/timemodule.c
description:
Add
New submission from STINNER Victor :
The curses module (only since Python 3.3), locale.strcoll(), locale.strxfrm(),
time.strftime() and imp.NullImporter() (only on Windows) accept embedded null
characters, whereas they convert the Unicode string to a wide character
(wchar_t*) string.
The
STINNER Victor added the comment:
PyUnicode_AsWideCharString() documentation should also warn about this issue.
--
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New submission from STINNER Victor :
To factorize the code and to fix encoding issues in the time module, I added
functions to decode/encode from/to the locale encoding:
PyUnicode_DecodeLocale(), PyUnicode_DecodeLocaleAndSize() and
PyUnicode_EncodeLocale() (issue #13560). During tests, I
STINNER Victor added the comment:
Ok, I think that the current code is good enough to close the issue. I opened a
more global issue about the Python codec: #13619.
--
resolution: -> fixed
status: open -> closed
___
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Changes by STINNER Victor :
--
keywords: +patch
Added file: http://bugs.python.org/file23985/locale_encoding.patch
___
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STINNER Victor added the comment:
# On FreeBSD, Solaris and Mac OS X, b'\xff' can be decoded in
# the C locale. The C locale is something like ISO-8859-1, not
# 7-bit ASCII.
On FreeBSD, it *is* the ISO-8859-1 encoding.
--
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Python trac
STINNER Victor added the comment:
http://www.python.org/dev/buildbot/all/builders/x86%20Gentoo%203.x/builds/1327/steps/test/logs/stdio
==
ERROR: test_list_active (test.test_nntplib.NetworkedNNTPTests
STINNER Victor added the comment:
Oooh, I missed the important sentence "Accordingly, constructor arguments are
interpreted as for bytearray()." The 5 constructors are documented in bytearray
doc:
http://docs.python.org/dev/library/functions.html#bytearray
--
resolution:
STINNER Victor added the comment:
Patch version 2: improve the test. Try also the user locale encoding if the C
locale uses ISO-8859-1 (should improve the code coverage on FreeBSD, Mac OS X
and Solaris).
--
Added file: http://bugs.python.org/file23987/locale_encoding-2.patch
STINNER Victor added the comment:
> Should we fix this (Py_ssize_t, overflow check before computation), as in
> #11564?
Yes. Use Py_ssize_t type for the buf_size attribute, and replace "bigger <= 0"
(test if an overflow occurred) by "self->buf_size > (PY_SSIZE_
STINNER Victor added the comment:
I tested locale_encoding-2.patch on Linux, FreeBSD and Windows: UTF-8 and
ISO-8859-1 locales on Linux and FreeBSD, and the cp1252 ANSI code page on
Windows.
--
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STINNER Victor added the comment:
Sorted and grouped results. "replace", "find" and "concat" should be easy to
fix, "format" is a little bit more complex, "strip" and "split" depends on
"find" performance and require to
STINNER Victor added the comment:
Sorted and grouped results. "replace", "find" and "concat" should be easy to
fix, "strip" and "split" depend on "find" performance.
replace:
- b"...text.with.2000.lines...replace(b"
STINNER Victor added the comment:
Grouped results.
find (first):
- (b"A"*1000).find(b"A"): -70%
- (b"A"*1000).rfind(b"A") : -70%
- (b"A"*1000).index(b"A") : -71%
- (b"A"*1000).rindex(b"A") : -68%
- (
STINNER Victor added the comment:
Boris.FELD told me that there was a bug in compare.py: all numbers are related
to Unicode (see #13621), not bytes.
--
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Python tracker
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Changes by STINNER Victor :
--
resolution: -> invalid
status: open -> closed
___
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<http://bugs.python.org/issue13622>
___
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STINNER Victor added the comment:
See also the issue #13621 for results on Unicode.
--
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<http://bugs.python.org/issue13623>
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Python-bug
STINNER Victor added the comment:
See also the issue #13623 for results on bytes.
--
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Python-bug
New submission from STINNER Victor :
iobench benchmarking tool showed that the UTF-8 encoder is slower in Python 3.3
than Python 3.2. The performance depends on the characters of the input string:
* 8x faster (!) for a string of 50.000 ASCII characters
* 1.5x slower for a string of 50.000
Changes by STINNER Victor :
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nosy: +flox
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STINNER Victor added the comment:
> Can you please provide your exact testing procedure?
Here you have.
$ cat bench.sh
echo -n "ASCII: "
./python -m timeit 'x="A"*5' 'x.encode("utf-8")'
echo -n "UCS-1: "
./python -m timeit
STINNER Victor added the comment:
Oh, Antoine told me that I missed the -s command line argument to timeit:
$ cat bench.sh
echo -n "ASCII: "
./python -m timeit -s 'x="A"*5' 'x.encode("utf-8")'
echo -n "UCS-1: "
./python -m t
STINNER Victor added the comment:
Python 3.2 (narrow):
ASCII: 1 loops, best of 3: 28.2 usec per loop
UCS-1: 1 loops, best of 3: 59.1 usec per loop
UCS-2: 1 loops, best of 3: 88.8 usec per loop
UCS-4: 1000 loops, best of 3: 254 usec per loop
Python 3.2 (wide):
ASCII: 1 loops
STINNER Victor added the comment:
> 8x faster (!) for a string of 50.000 ASCII characters
Oooh, it's just faster because encoding ASCII to UTF-8 is now O(1). The ASCII
data is shared with the UTF-8 data thanks to the PEP 393!
--
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Changes by STINNER Victor :
--
resolution: -> fixed
status: open -> closed
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STINNER Victor added the comment:
Thanks for the patch Jérémy.
--
nosy: +haypo
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STINNER Victor added the comment:
> (b"A"*1000).find(b"A"): -70%
This one is a performance regression introduced by #12170. Attached patch
checks object type before trying a conversion to size_t instead of catching an
exception.
--
keywords:
STINNER Victor added the comment:
bytes_find.patch only works for Python int, not object with the __index__
method. My new patch (bytes_find-2.patch) uses PyNumber_Check() instead of
PyLong_Check() to be more generic. It fixes also a different issue: raise the
same ValueError than bytes.find
Changes by STINNER Victor :
Removed file: http://bugs.python.org/file24012/bytes_find-2.patch
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Changes by STINNER Victor :
Added file: http://bugs.python.org/file24013/bytes_find-2.patch
___
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STINNER Victor added the comment:
New changeset 75648db1b3f3 by Victor Stinner in branch 'default':
http://hg.python.org/cpython/rev/75648db1b3f3
Issue #13623: Fix a performance regression introduced by issue #12170 in
bytes.find() and handle correctly OverflowError (raise the same
STINNER Victor added the comment:
I checked stringbench: there is no more performance regression (difference of
more than 20%).
--
resolution: -> fixed
status: open -> closed
___
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STINNER Victor added the comment:
_Py_c_pow() doc is wrong:
+ If :attr:`exp.imag` is not null, or :attr:`exp.real` is negative,
+ this method returns zero and sets :c:data:`errno` to :c:data:`EDOM`.
The function only fails if num=0 and exp.real < 0 or if num=0 and exp.imag !
STINNER Victor added the comment:
> "...text.with.2000.lines...replace("\n", " ") (*10): -37.668161%
I also noticed a difference between Python 3.2 and 3.3, but Python 3.3 is 13%
*faster* (and not slower). This benchmark is not really representative because
str
STINNER Victor added the comment:
> I also noticed a difference between Python 3.2 and 3.3,
> but Python 3.3 is 13% *faster* (and not slower).
Oops, I misused the timeit module, there is a regression.
> New changeset c802bfc8acfc by Victor Stinner in branch 'default':
>
Changes by STINNER Victor :
--
resolution: -> fixed
status: open -> closed
___
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___
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STINNER Victor added the comment:
Updated patch to fix also the size of the small buffer on the stack, as
suggested by Antoine.
--
Added file: http://bugs.python.org/file24021/utf8_encoder-2.patch
___
Python tracker
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STINNER Victor added the comment:
utf8_encoder_prescan.patch: precompute the size of the output to avoid a
PyBytes_Resize() at exit. It is much slower:
ASCII: 10 loops, best of 3: 2.06 usec per loop
UCS-1: 1 loops, best of 3: 123 usec per loop
UCS-2: 1 loops, best of 3: 171 usec
Changes by STINNER Victor :
Removed file: http://bugs.python.org/file24005/utf8_encoder.patch
___
Python tracker
<http://bugs.python.org/issue13624>
___
___
Python-bug
STINNER Victor added the comment:
Patch version 3 to fix compiler warnings (avoid variables used for the error
handler, unneeded for UCS-1).
--
Added file: http://bugs.python.org/file24023/utf8_encoder-3.patch
___
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<h
Changes by STINNER Victor :
--
resolution: -> fixed
status: open -> closed
___
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___
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New submission from STINNER Victor :
If Python is compiled with gcc -O3, gdb is unable to get the f argument of
PyEval_EvalFrameEx(). It is possible to retrieve "f" from the caller,
PyEval_EvalCodeEx().
Attached patch tries to implement this idea and enable more test_gdb tests on
STINNER Victor added the comment:
> It's actually still O(n): the UTF-8 data still need to be copied
> into a bytes object.
Hum, correct, but a memory copy is much faster than having to decode UTF-8.
--
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Python tracker
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STINNER Victor added the comment:
embedded_nul-2.patch: a more complete patch check also null byte in functions
calling PyUnicode_EncodeFSDefault().
--
Added file: http://bugs.python.org/file24041/embedded_nul-2.patch
___
Python tracker
<h
STINNER Victor added the comment:
There is failure on a XP buildbot. I don't know if it is a sporadic issue or
not.
http://www.python.org/dev/buildbot/all/builders/x86%20XP-5%203.x/builds/3921/steps/test/logs/stdio
==
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