[issue18654] modernize mingwcygwin compiler classes
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36218/0011-MINGW-compiler-customize-mingw-cygwin-compilers.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18654 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17148] mingw: nt thread model detection
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36219/0001-MINGW-issue17148-nt-thread-model-detection.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17148 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17596] mingw: add wincrypt.h in Python/random.c
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36220/0006-MINGW-add-wincrypt.h-in-Python-random.c.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17596 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17597] mingw: add $srcdir/PC to CPPFLAGS
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36221/0007-MINGW-add-srcdir-PC-to-CPPFLAGS.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17597 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17599] mingw: detect REPARSE_DATA_BUFFER
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36222/0009-MINGW-detect-REPARSE_DATA_BUFFER.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17599 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17602] mingw: default sys.path calculations for windows platforms
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36223/0012-MINGW-default-sys.path-calculations-for-windows-plat.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17602 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17604] mingw: use main() to start execution
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36224/0014-MINGW-use-main-to-start-execution.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17604 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18495] mingw: ignore main program for frozen scripts
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36225/0007-MINGW-ignore-main-program-for-frozen-scripts.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18495 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11395] print(s) fails on Windows with long strings
STINNER Victor added the comment: This issue is closed. You should reopen it or open a new one. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11395 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18697] Unify arguments names in Unicode object C API documentation
Serhiy Storchaka added the comment: @Serhiy will you be proposing a patch for this? No, I am not. I have no opinion what name is better. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18697 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18631] mingw: setup msvcrt and _winapi modules
Changes by Roumen Petrov bugtr...@roumenpetrov.info: Added file: http://bugs.python.org/file36226/0014-MINGW-setup-msvcrt-and-_winapi-modules.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18631 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Serhiy Storchaka added the comment: fix_email_parse.diff is not work when one chunk ends with '\r' and next chunk doesn't start with '\n'. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22122] turtle module examples should all begin from turtle import *
Mark Summerfield added the comment: Ah, we're slightly at cross purposes. I showed them purely in terms of the procedural API. However, I can see now that I could have begun with: import turtle ... jane = turtle.Turtle() jane.fd(100) So, to teach their turtle how to go in a square, I guess they'd do: def square(who, size=100): for n in range(4): who.fd(100) who.rt(90) square(jane) That seems reasonable, but then why isn't the first (and only complete) example done in this OO-ish style? Anyway, I've marked this closed and will switch to this approach in future. Thanks. -- resolution: - not a bug status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22122 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22123] Provide a direct function for types.SimpleNamespace()
Mark Summerfield added the comment: I changed my suggestion but did so on the mailing list instead of here: This (importing using types.SimpleNamespace()) is too much for children ( beginners). But perhaps what I should be asking for is for a new built-in that does what types.SimpleNamespace() does, so that without any import you can write, say, foo = namespace(a=1, b=2) # or bar = namespace() bar.a = 1 where under the hood namespace has the same behavior as types.SimpleNamespace(). Naturally, I understand that adding a new name is a big deal and may be too much to ask for beginners. I've renamed the issue to reflect this (although I don't know if that will work). Alternatively, I (or someone) could just close the issue as won't fix; it was just an idea. -- title: Make object() behave exactly like types.SimpleNamespace() if given kwargs - Provide a direct function for types.SimpleNamespace() ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22123 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22126] mc68881 fpcr inline asm breaks clang -flto build
New submission from ivank: Build cpython master with clang -flto results in: [...] ar rc libpython3.5m.a Modules/_threadmodule.o Modules/signalmodule.o Modules/posixmodule.o Modules/errnomodule.o Modules/pwdmodule.o Modules/_sre.o Modules/_codecsmodule.o Modules/_weakref.o Modules/_functoolsmodule.o Modules/_operator.o Modules/_collectionsmodule.o Modules/itertoolsmodule.o Modules/atexitmodule.o Modules/_stat.o Modules/_localemodule.o Modules/_iomodule.o Modules/iobase.o Modules/fileio.o Modules/bytesio.o Modules/bufferedio.o Modules/textio.o Modules/stringio.o Modules/zipimport.o Modules/faulthandler.o Modules/_tracemalloc.o Modules/hashtable.o Modules/symtablemodule.o Modules/xxsubtype.o ranlib libpython3.5m.a clang -pthread -flto -B/usr/lib/gold-ld -flto -B/usr/lib/gold-ld -Xlinker -export-dynamic -o python Programs/python.o libpython3.5m.a -lpthread -ldl -lutil -lm clang -pthread -flto -B/usr/lib/gold-ld -flto -B/usr/lib/gold-ld -Xlinker -export-dynamic -o Programs/_testembed Programs/_testembed.o libpython3.5m.a -lpthread -ldl -lutil -lm inline asm:1:10: error: invalid register name fmove.l %fpcr,36(%rsp) ^ LLVM ERROR: Error parsing inline asm clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [python] Error 1 make: *** Waiting for unfinished jobs inline asm:1:10: error: invalid register name fmove.l %fpcr,36(%rsp) ^ LLVM ERROR: Error parsing inline asm clang: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [Programs/_testembed] Error 1 My build script was: #!/bin/bash # Get clang 3.5 from # deb http://llvm.org/apt/trusty/ llvm-toolchain-trusty main # deb-src http://llvm.org/apt/trusty/ llvm-toolchain-trusty main set -e sudo ln -sf /usr/lib/llvm-3.5/lib/LLVMgold.so /usr/lib/LLVMgold.so sudo mkdir -p /usr/lib/bfd-plugins sudo ln -sf /usr/lib/llvm-3.5/lib/LLVMgold.so /usr/lib/bfd-plugins/LLVMgold.so grep -Fxq /usr/lib/llvm-3.5/lib /etc/ld.so.conf || (echo /usr/lib/llvm-3.5/lib should be in /etc/ld.so.conf false) sudo ldconfig export CC=clang export CXX=clang++ export CFLAGS=-O3 -flto -B/usr/lib/gold-ld -fomit-frame-pointer export CXXFLAGS=-O3 -flto -B/usr/lib/gold-ld -fomit-frame-pointer export LDFLAGS=-flto -B/usr/lib/gold-ld make clean || echo Can't make clean ./configure --prefix=/opt/leakless make -j17 It works fine without the -flto/gold-ld options. -- components: Interpreter Core messages: 224613 nosy: ivank priority: normal severity: normal status: open title: mc68881 fpcr inline asm breaks clang -flto build type: compile error versions: Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22126 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18034] Last two entries in the programming FAQ are out of date (import related)
Wouter van Heyst added the comment: The attached patch changes the body of the __import__ faq entry to suggest using `importlib.import_module` instead. -- keywords: +patch nosy: +larstiq Added file: http://bugs.python.org/file36227/faq-import_module.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18034 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18631] mingw: setup msvcrt and _winapi modules
Martin v. Löwis added the comment: Roumen, can you please fill out the contributor form? -- nosy: +loewis ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18631 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14910] argparse: disable abbreviation
Daniel Eriksson added the comment: Oh, completely missed comments there too! I hope I got them all in a good way! -- Added file: http://bugs.python.org/file36228/issue14910_4.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14910 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14910] argparse: disable abbreviation
Daniel Eriksson added the comment: Sorry for a new patch this close, but just tripple checked the documentation and noticed a word to much. Made it more clear hopefully -- Added file: http://bugs.python.org/file36229/issue14910_5.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14910 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22127] performance regression in socket.getsockaddr()
New submission from Charles-François Natali:
I noticed that socket.sendto() got noticably slower since 3.4 (at least),
compared to 2.7:
2.7:
$ ./python -m timeit -s import socket; s = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM); DATA = b'hello'; TARGET=('127.0.0.1', 4242)
s.sendto(DATA, TARGET)
10 loops, best of 3: 15.8 usec per loop
3.4:
$ ./python -m timeit -s import socket; s = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM); DATA = b'hello'; TARGET=('127.0.0.1', 4242)
s.sendto(DATA, TARGET)
1 loops, best of 3: 25.9 usec per loop
A profile reveals this:
2.7:
100065 function calls in 2.268 seconds
Ordered by: cumulative time
ncalls tottime percall cumtime percall filename:lineno(function)
10.3610.3612.2682.268 test_send.py:1(module)
101.8950.0001.8950.000 {method 'sendto' of
'_socket.socket' objects}
3.4:
906015 function calls (905975 primitive calls) in 6.132 seconds
Ordered by: cumulative time
ncalls tottime percall cumtime percall filename:lineno(function)
5/10.0000.0006.1326.132 {built-in method exec}
10.3340.3346.1326.132 test_send.py:1(module)
102.3470.0005.7690.000 {method 'sendto' of
'_socket.socket' objects}
101.9910.0003.4110.000 idna.py:147(encode)
5000860.8940.0000.8940.000 {built-in method len}
100.2690.0000.2690.000 {method 'encode' of 'str' objects}
100.2570.0000.2570.000 {method 'split' of 'bytes'
objects}
As can be seen, it's the IDNA encoding which takes a long time, and doesn't
appear in the 2.7 profile.
The parsing code (including idna codec) is present in both versions though:
static int
getsockaddrarg(PySocketSockObject *s, PyObject *args,
struct sockaddr *addr_ret, int *len_ret)
[...]
if (!PyArg_ParseTuple(args, eti:getsockaddrarg,
idna, host, port))
return 0;
I'm currently bisecting the commit, but I'm not familiar with encoding stuff.
Is it expected that the IDNA encoding be called when passed an ascii string?
--
components: Library (Lib)
messages: 224618
nosy: haypo, loewis, neologix, pitrou
priority: normal
severity: normal
status: open
title: performance regression in socket.getsockaddr()
type: performance
versions: Python 3.4, Python 3.5
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[issue22127] performance regression in socket getsockaddrarg()
Changes by Charles-François Natali cf.nat...@gmail.com: -- title: performance regression in socket.getsockaddr() - performance regression in socket getsockaddrarg() ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22127 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8548] Building on CygWin 1.7: PATH_MAX redefined
Roumen Petrov added the comment: Hi Mark, #else before is not solution. See unified diff below as post by Scott Rostrup lack definition Some additional information: a) move outside #ifdef HAVE_FCNTL_H : definition PATH_MAX is not related to control functions on open files (fcntl.h) b) HAVE_FCNTL_H is defined for MSC build as well. so no impact on other build --- a/Modules/main.c +++ b/Modules/main.c @@ -9,6 +9,8 @@ #include windows.h #ifdef HAVE_FCNTL_H #include fcntl.h +#endif +#ifndef PATH_MAX #define PATH_MAX MAXPATHLEN #endif #endif -- -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8548 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9665] Buid issues on Cygwin - _curses, _curses_panel, and _io
Roumen Petrov added the comment: PATH_MAX in duplicate with issue8548 Instead to modify BASECFLAGS user could configure with CPPFLAGS set if symbolic links are missing . In addition 5.9 package creates links so work around is not required . Please close as invalid. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9665 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21278] Running the test suite with -v makes the test_ctypes and the test_zipimport erroneously reported as failed
Wouter van Heyst added the comment: Even running `EXTRATESTOPTS='-x test_gdb -uall -v' make testall` I can not reproduce this. I'll dig some more in the code for anything suspicious. -- nosy: +larstiq ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21278 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11763] assertEqual memory issues with large text inputs
Ezio Melotti added the comment: The second problem I mentioned in msg134530 got fixed in #18996, making the patches on this issue obsolete. Since the other problem is now tracked in #19217, I'm going to close this. -- stage: patch review - resolved status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11763 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Raymond Hettinger added the comment: Attaching revised patch. I forgot to reapply splitlines. -- Added file: http://bugs.python.org/file36230/fix_email_parse2.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Raymond Hettinger added the comment: Attaching a more extensive test -- Added file: http://bugs.python.org/file36231/test_parser.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Changes by Raymond Hettinger raymond.hettin...@gmail.com: Added file: http://bugs.python.org/file36232/fix_prepending.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Changes by Raymond Hettinger raymond.hettin...@gmail.com: Added file: http://bugs.python.org/file36233/fix_prepending2.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Changes by Raymond Hettinger raymond.hettin...@gmail.com: Removed file: http://bugs.python.org/file36232/fix_prepending.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Daniel Eriksson added the comment: @Antoine: We have investigated a bit here and it seems that ZFS just keeps a timestamp in seconds in the memory. See function uberblock_update in uberblock.c ( http://people.freebsd.org/~gibbs/zfs_doxygenation/html/d3/d65/uberblock_8c_source.html - Row 57) ub-ub_timestamp = gethrestime_sec(); -- nosy: +clearminds ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21278] Running the test suite with -v makes the test_ctypes and the test_zipimport erroneously reported as failed
Wouter van Heyst added the comment: Ezio also couldn't reproduce this, so unless someone else (ddvento?), can reproduce it, I would advocate closing this issue. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21278 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Daniel Eriksson added the comment: After thinking and looking a bit on it, this patch isn't the best to put into the code what I can see. If any of these things really break, because of something completely different - we won't notice it. A more accurate solution is to maybe look on a different way to compare the timestamps that works on systems that just support seconds too? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Claudiu Popa added the comment: I agree. The patch was merely a temporary solution to the real problem. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14910] argparse: disable abbreviation
Eli Bendersky added the comment: No worries, Daniel. You should have received an email when comments were posted to the review, did you? If you you may want to check your settings in the bug tracker. I left a couple of additional comments on the documentation file, but other than that this LGTM. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14910 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22126] mc68881 fpcr inline asm breaks clang -flto build
Stefan Krah added the comment: If it works without -flto, isn't that a toolchain rather than a Python issue? -- nosy: +schwab, skrah ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22126 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Serhiy Storchaka added the comment: fix_email_parse2.diff slightly changes behavior. See my comments on Rietveld. As for fix_prepending2.diff, could you please provide any benchmark results? And there is yet one bug in current code. str.splitlines() splits a string not only breaking it at '\r', '\n' or '\r\n', but at any Unicode line break character (e.g. '\x85', '\u2028', etc). And when a chunk ends with such line break character, it will not break a line. Definitely something should fixed: either lines should be broken only at '\r', '\n' or '\r\n', or other line break characters should be handled correctly when they happen at the end of the chunk. What would you say about this, David? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22128] patch: steer people away from codecs.open
New submission from Frank van Dijk: stackoverflow.com has a zillion answers recommending the use of codecs.open() as a unicode capable drop in replacement for open(). This probably means that there is still a lot of code being written that uses codecs.open(). That's bad thing because of codecs.open()'s lack of newline conversion. A lot of that code will - have compatibility issues when it is moved between unix and windows - silently break text files on windows, leading to issues further downstream (confusing other tools, messing up revision control histories) The problem has been fixed with io.open() in 2.x and open() in 3.x. Unfortunately the 2.7 unicode HOWTO still recommends the use of codecs.open(). The 2.7 and the 3.x documentation of codecs.open() doesn't refer the reader to better alternatives. The attached patches fix that. The only downside I see is that newly written code that uses the better alternatives would be incompatible with 2.5 and older. However croaking on a small minority of systems is better than silently disrupting workflows, causing platform incompatibilities, and inviting flaky workarounds. The 2.7 patch makes the unicode HOWTO recommend io.open() instead of codecs.open(). Both patches change the codecs.open() documentation to refer to io.open() or (on 3.x) open(). Additionally I removed the data loss explanation from codecs.open()'s note about its lack of newline conversion. It is not particularly helpful information and it is not entirely correct (data loss could also have been avoided by doing newline conversion before encoding and after decoding) -- assignee: docs@python components: Documentation files: codecsopen2.patch keywords: patch messages: 224632 nosy: Frank.van.Dijk, docs@python priority: normal severity: normal status: open title: patch: steer people away from codecs.open type: behavior versions: Python 2.7, Python 3.4, Python 3.5 Added file: http://bugs.python.org/file36234/codecsopen2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22128] patch: steer people away from codecs.open
Changes by Frank van Dijk fwvd...@gmail.com: Added file: http://bugs.python.org/file36235/codecsopen3.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22129] Please add an equivalent to QString::simplified() to Python strings
New submission from Tobias Leupold: It would be nice if a function equivalent to Qt's QString::simplified() would be added to Python's strings (cf. http://qt-project.org/doc/qt-4.8/qstring.html#simplified ). I'm not sure if my approach is good or fast, but I added this function to my code like so: http://nasauber.de/blog/T/143/QString_simplified_in_Python -- components: Interpreter Core messages: 224633 nosy: l3u priority: normal severity: normal status: open title: Please add an equivalent to QString::simplified() to Python strings type: enhancement versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22128] patch: steer people away from codecs.open
Changes by Serhiy Storchaka storch...@gmail.com: -- nosy: +doerwalter, haypo, lemburg ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22127] performance regression in socket getsockaddrarg()
Antoine Pitrou added the comment: IDNA encoding is quite slow (see 6e1071ed4c66). I'm surprised we accept general hosnames in sendto(), though (rather than plain IP addresses). 25 µs per call is a lot for such a function. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22127 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15428] add Name Collision section to argparse docs
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- type: - enhancement versions: +Python 3.5 -Python 3.2, Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15428 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20135] FAQ need list mutation answers
Ezio Melotti added the comment: Here is a new patch that includes an additional paragraph about mutation and non-mutation operations. -- Added file: http://bugs.python.org/file36236/issue20135-2.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20135 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22126] mc68881 fpcr inline asm breaks clang -flto build
Andreas Schwab added the comment: Why does the configure test succeed? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22126 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22092] Executing some tests inside Lib/unittest/test individually throws Error
Ezio Melotti added the comment: I left a comment on rietveld. Michael, do you think changing the imports is OK, or will this cause you some troubles with the external unittest package you maintain? -- assignee: - michael.foord stage: - patch review type: - behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22092 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22129] Please add an equivalent to QString::simplified() to Python strings
Serhiy Storchaka added the comment: This is too specialized function to be included in the stdlib ar added as a method to base class. There are simpler and faster implementations of this function: def simplify(s): return ' '.join(s.strip().split()) or def simplify(s): return re.sub(r'\s+', ' ', s.strip()) Due to they simplicity there is no need to add them in Python. -- nosy: +serhiy.storchaka resolution: - rejected stage: - resolved status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22123] Provide a direct function for types.SimpleNamespace()
Barry A. Warsaw added the comment: I'm not in favor of changing object() but exposing types.SimpleNamespace as built-in namespace() doesn't seem like such a bad idea, especially given Tim's penultimate Zen aphorism. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22123 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22116] Weak reference support for C function objects
Antoine Pitrou added the comment: Wouldn't it be enough to test that one of the builtin functions is now weak referencible? It's better to check that the weakref gets cleared when the object dies, and for that you need an object you can dispose of. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22116 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Daniel Eriksson added the comment: #15745 is probably related to this issue -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Daniel Eriksson added the comment: So me and @larstiq have been sitting with this during the sprint here and we have figured out some things but haven't had the time to put together a patch. If you put two p.touch() before starting the testing, it will not fail on BSD. What we have found out so far is that during file creation the resolution of the timestamp is higher then at the touch attempt when a file exists. The main issue as we see it is that os.stat can return a timestamp with more granularity than os.utime can set. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22092] Executing some tests inside Lib/unittest/test individually throws Error
Vajrasky Kok added the comment: Here is the patch based on Ezio's review. Thanks! -- Added file: http://bugs.python.org/file36237/fix_test_inside_unittest_v2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22092 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18766] IDLE: Autocomplete in editor doesn't work for un-imported modules
Mark Lawrence added the comment: The patch is simple but I don't know enough about IDLE to comment technically, what do you think Terry? -- nosy: +BreamoreBoy versions: +Python 3.4, Python 3.5 -Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18766 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20135] FAQ need list mutation answers
Francis MB added the comment: A) On the example: +Also note that some operations (e.g. ``y.append(10)``/``y += [10]`` or +``y.sort()``) mutate are you saying: 1) y.append(10) divided by y += [10] or 2) y.append(10) and y += [10] I don't want to split hairs but reading it fast confused me a bit B) The paragraph: + etc.), we can use some specific operations to mutate it and all the variables + that refer to it will see + the change; Couldn't be (one newline less): + etc.), we can use some specific operations to mutate it and all the variables + that refer to it will see the change; -- nosy: +francismb ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20135 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13822] is(upper/lower/title) are not exactly correct
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- versions: +Python 3.5 -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13822 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18769] argparse remove subparser
Mark Lawrence added the comment: @Paul it's a simple enough patch, what do you think? -- nosy: +BreamoreBoy versions: +Python 3.5 -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18769 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Raymond Hettinger added the comment: As for fix_prepending2.diff, could you please provide any benchmark results No. Inserting at the beginning of a list is always O(n) and inserting at the beginning of a deque is always O(1). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22130] Logging fileConfig behavior does not match documentation
New submission from Brendan Meeder: The 2.7.8 documentation for fileConfig says that for disable_existing_loggers: If specified as False, loggers which exist when this call is made are left alone. This is actually not the case- they are enabled after the call to fileConfig. In particular, the loggers that would be disabled if disable_existing_loggers=True are enabled after the call, regardless of whether they were previously enabled/disabled. -- components: Library (Lib) messages: 224648 nosy: Brendan.Meeder priority: normal severity: normal status: open title: Logging fileConfig behavior does not match documentation type: behavior versions: Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21448] Email Parser use 100% CPU
Serhiy Storchaka added the comment: Yes, but if n is limited, O(n) becomes O(1). In our case n is the number of fed but not read lines. I suppose the worst case is a number of empty lines, in this case n=8192. I tried following microbenchmark and did not noticed significant difference. $ ./python -m timeit -s from email.parser import Parser; d = 'From: exam...@example.com\n\n' + '\n' * 10 -- Parser().parsestr(d) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13540] Document the Action API in argparse
Jason R. Coombs added the comment: @paul.j3, It wasn't from a different project, it's just that the bug tracker when it does a diff always uses the tip of each branch instead of the most recent common ancestor, so it effectively calculated the the diff of the changes plus the inverse of every change since the effort initiated. But yes, it makes sense to remove it. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13540 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13540] Document the Action API in argparse
Changes by Jason R. Coombs jar...@jaraco.com: Removed file: http://bugs.python.org/file36001/9ac347a7f375.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13540 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16428] turtle with compound shape doesn't get clicks
Changes by Jessica McKellar jesst...@mit.edu: -- keywords: +needs review stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16428 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18624] Add alias for iso-8859-8-i which is the same as iso-8859-8
Changes by Jessica McKellar jesst...@mit.edu: -- keywords: +needs review stage: needs patch - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18624 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13540] Document the Action API in argparse
Roundup Robot added the comment: New changeset 956c6d33a57d by Jason R. Coombs in branch '2.7': Issue #13540: Expanded argparse documents to clarify the action API http://hg.python.org/cpython/rev/956c6d33a57d New changeset 008a5473f300 by Jason R. Coombs in branch '2.7': Issue #13540: Removed redundant documentation about Action instance attributes. Updated example and documentation per recommendations by Steven Bethard in msg149524. http://hg.python.org/cpython/rev/008a5473f300 New changeset 7a627bc9d40e by Jason R. Coombs in branch '2.7': Issue #13540: Update references to Action class to match syntax used for other classes in this file. http://hg.python.org/cpython/rev/7a627bc9d40e New changeset b232e937e668 by Jason R. Coombs in branch '2.7': Issue #13540: Merge commits http://hg.python.org/cpython/rev/b232e937e668 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13540 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13540] Document the Action API in argparse
Roundup Robot added the comment: New changeset e2c9e0a3ef02 by Jason R. Coombs in branch '3.2': Issue #13540: Expanded argparse documents to clarify the action API http://hg.python.org/cpython/rev/e2c9e0a3ef02 New changeset c10a6ca9cb32 by Jason R. Coombs in branch '3.2': Issue #13540: Removed redundant documentation about Action instance attributes. Updated example and documentation per recommendations by Steven Bethard in msg149524. http://hg.python.org/cpython/rev/c10a6ca9cb32 New changeset 634f3fe8cbde by Jason R. Coombs in branch '3.2': Issue #13540: Update references to Action class to match syntax used for other classes in this file. http://hg.python.org/cpython/rev/634f3fe8cbde New changeset a36d469f31c1 by Jason R. Coombs in branch '3.3': Issue #13540: Merge changes from 3.2 http://hg.python.org/cpython/rev/a36d469f31c1 New changeset c689156580ca by Jason R. Coombs in branch '3.4': Issue #13540: Merge changes from 3.3 http://hg.python.org/cpython/rev/c689156580ca New changeset a2d01ed713cb by Jason R. Coombs in branch 'default': Issue #13540: Merge changes from 3.4 http://hg.python.org/cpython/rev/a2d01ed713cb -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13540 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue13540] Document the Action API in argparse
Jason R. Coombs added the comment: Commits applied to Python 2.7 and 3.2-3.5. -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13540 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14910] argparse: disable abbreviation
Daniel Eriksson added the comment: Eli, will look into those tomorrow morning, so a final patch will come during tomorrow. Checked my spam folder - and there they where, fixed the settings now so I get it faster. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14910 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17603] AC_LIBOBJ replacement of fileblocks
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- versions: +Python 3.5 -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17603 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17769] python-config --ldflags gives broken output when statically linking Python with --as-needed
Mark Lawrence added the comment: @Max sorry about the delay in giving you a response. Can somebody please pick this up, I can't find on the experts list who to put on the nosy list for build issues. -- nosy: +BreamoreBoy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17769 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Larry Hastings added the comment: os.stat can return something more precise than nanosecond resolution? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22128] patch: steer people away from codecs.open
STINNER Victor added the comment: See also my PEP 400: http://legacy.python.org/dev/peps/pep-0400/ -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22127] performance regression in socket getsockaddrarg()
STINNER Victor added the comment: For Python, the encoder is only used when you pass a Unicode string. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22127 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17774] unable to disable -r in run_tests.py
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- versions: +Python 3.5 -Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17774 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15992] Strict aliasing violations in Objects/unicodeobject.c
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- versions: +Python 3.4, Python 3.5 -Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15992 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16429] Emit SyntaxWarning for code that risks UnboundLocalError
Changes by Mark Lawrence breamore...@yahoo.co.uk: -- type: - enhancement versions: +Python 3.5 -Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16429 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22128] patch: steer people away from codecs.open
Marc-Andre Lemburg added the comment: Pointing people to io.open() as alternative to codecs.open() is a good idea, but that doesn't make codecs.open() less useful. The reason why codecs.open() uses binary mode is to avoid issues with automatic newline conversion getting in the way of the file's encoding. Think of e.g. UTF-16 encoded files that use newlines. Note that codecs allow handling newlines on a line-by-line bases via the .readline() keepends parameter, so issues with Windows vs. Unix can be worked around explicitly. Since default is to keep line ends, no data loss occurs and application code can deal with line ends as it sees fit. As it stands, I'm -1 on this patch, but would be +1 on mentioning io.open() as alternative to codecs.open() with a slightly different approach to line ends. I don't think it's useful to tell people: * use codecs.open() on Python 2.4, 2.5, 2.6 * use io.open() on Python 2.7 (io is too slow on 2.6 to be a real alternative to codecs.open()) * use open() on Python 3.4+ codecs.open() works the same across all these Python versions. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15018] Incomplete Python LDFLAGS and CPPFLAGS used for extension modules on posix
Mark Lawrence added the comment: Who is best placed to comment on build issues? -- nosy: +BreamoreBoy versions: +Python 3.4, Python 3.5 -Python 2.6, Python 3.1, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15018 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22092] Executing some tests inside Lib/unittest/test individually throws Error
Michael Foord added the comment: Patch looks fine, easy enough to change for unittest2 (if I ever have the time for a new release!) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22092 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18841] math.isfinite fails with Decimal sNAN
Mark Lawrence added the comment: Steven, can you propose a patch for this? -- nosy: +BreamoreBoy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18841 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18766] IDLE: Autocomplete in editor doesn't work for un-imported modules
Terry J. Reedy added the comment: A least a manual (human) test is needed: a description of steps that do not work now and do work with a patch. Currently, get_entity() is only called in one place in fetch_completions; it is not used anywhere else in idlelib. (Call_tips defines another get_entity().) Its body should be moved inline at the call site. A variation that differs in the second line namespace = __main__.__dict__.copy() namespace.update(__main__.__builtins__.__dict__) is already in-lined in the if-branch above. We are trying to eliminate bare excepts: in idlelib -- #15313 -- not expand them or their use. Try blocks should only include the statement or statements that could raise the exception or exceptions caught. So the import, once inlined, should be inside try: except ImportError: return... . I do not know what the existing try: except: is meant to catch, but it includes too much, as does the one that follows. That, however, should be a separate patch. +namespace = sys.modules.copy() +namespace.update(__main__.__dict__) seems unnecessary. I think the following should work. namespace[name] = sys.modules[name] A testcase would make sure either way. -- stage: - test needed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18766 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19838] test.test_pathlib.PosixPathTest.test_touch_common fails on FreeBSD with ZFS
Francis MB added the comment: What we have found out so far is that during file creation the resolution of the timestamp is higher then at the touch attempt when a file exists. Could it help to create 2 files (file 1, wait a bit, file 2) and then do the checks only with file 1? -- nosy: +francismb ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19838 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22127] performance regression in socket getsockaddrarg()
Charles-François Natali added the comment:
For Python, the encoder is only used when you pass a Unicode string.
Hm...
I'm passing ('127.0.0.1', 4242)as destination, and you can see in the
above profile that the idna encode function is called.
This doesn't occur with 2.7.
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[issue22127] performance regression in socket getsockaddrarg()
Charles-François Natali added the comment:
OK, I think I see what you mean:
$ ./python -m timeit -s import socket; s =
socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.sendto(b'hello',
('127.0.0.1', 4242))1 loops, best of 3: 44.7 usec per loop
$ ./python -m timeit -s import socket; s =
socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.sendto(b'hello',
(b'127.0.0.1', 4242))
1 loops, best of 3: 23.7 usec per loop
That's really surprising, especially since gethostbyname() and
getaddrinfo() seem to return strings:
$ ./python -m timeit -s import socket; s =
socket.socket(socket.AF_INET, socket.SOCK_DGRAM);
addr=socket.gethostbyname('127.0.0.1') s.sendto(b'hello', (addr,
4242))
$ ./python -c import socket; print(type(socket.gethostbyname('127.0.0.1')))
class 'str'
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[issue21448] Email Parser use 100% CPU
Raymond Hettinger added the comment: A deque is typically the right data structure when you need to append, pop, and extend on both the left and right side. It is designed specifically for that task. Also, it nicely cleans-up the code by removing the backwards line list and the list reversal prior to insertion on the left (that's what we had to do to achieve decent performance before the introduction of deques in Python 2.4, now you hardly ever see code like self._lines[:0] = lines[::-1]). I think fix_prepending2 would be a nice improvement for Py3.5. For the main patches that directly address the OP's performance issue, feel free to apply either my or yours. They both work. Either way, please add test_parser.diff since the original test didn't cover all the cases and because it didn't make clear the relationship between push() and splitlines(). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21448 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1234674] filecmp.cmp's shallow option
Steven Barker added the comment: I've worked on this filecmp issue some more, and I have some new patches. First up is a patch that only modifies the tests. It has one test that fails without the behavior patch. The test patch also modifies some other tests so that they will work after the behavior patch is applied. Notably, test_keyword had a some tests that would fail due to false negatives on shallow comparisons. The second patch is the behavior and documentation changes required to actually fix this issue. This should be very simple to understand (the behavior change is only two lines of code, quoted in the discussion above). If you apply only this patch, you'll get several test failures, all due to false negative shallow comparisons (where two files have the same contents, but their stat signatures differ). With these new patches, I think this issue is ready for a review, and eventually to be committed. The behavior change is simple and I think, obviously correct (assuming we want to risk breaking backwards compatibility). Perhaps my test code can be improved, but I don't think it's too bad. So, the main question is will too much outside code break if we make this behavior change? I don't think filecmp is used very widely, but as was demonstrated by the standard library's only use of filecmp (in Lib/test/test_keyword.py), it's likely that a lot of users perform shallow comparisons (by default) where they really don't want to get false-negatives. If we decide that the changed behavior is too big of a break of backwards compatibility, we just need to document the current behavior better (at a minimum, the docstring for filecmp.cmp must be corrected). -- Added file: http://bugs.python.org/file36238/filecmp_test_patch.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1234674 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1234674] filecmp.cmp's shallow option
Changes by Steven Barker blckkn...@gmail.com: Added file: http://bugs.python.org/file36239/filecmp_behavior_and_doc_fix.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1234674 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14910] argparse: disable abbreviation
Changes by Berker Peksag berker.pek...@gmail.com: -- components: +Library (Lib) -None stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14910 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22123] Provide a direct function for types.SimpleNamespace()
Changes by Martin Panter vadmium...@gmail.com: -- nosy: +vadmium ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22123 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20170] Derby #1: Convert 137 sites to Argument Clinic in Modules/posixmodule.c
Larry Hastings added the comment: Diff tweaked to undo the ill-concieved Py_RETURN_NONE change. Thanks, Zachary! Does it now compile and pass tests on Windows? -- Added file: http://bugs.python.org/file36240/larry.clinicize.posixmodule.7.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20170 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1186900] nntplib shouldn't raise generic EOFError
Martin Panter added the comment: I could be wrong, but isn’t this error raised when expecting a response from any command, not just during “connection establishment”? Perhaps change the docstring to say something like “Connection closed unexpectedly” instead. -- nosy: +vadmium ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1186900 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22131] uuid.bytes optimization
New submission from Kevin London: Generating the byte representation of a UUID object can be a little faster by using binascii's unhexlify on the hex value of the UUID object. In my testing, I saw about a 5.5x speed increase with the attached changes. Here are a set of benchmarks that I ran, which are inspired by Wang Chun's benchmarks on http://bugs.python.org/issue5885: https://gist.github.com/kevinlondon/d3bb32d5a784f78731fa My times: kevin$ python uuid_benchmark.py 10 Original Average: 8.049 microseconds Updated Average: 1.447 microseconds I re-ran all of the tests with the patched uuid module and they passed. Here's my patchcheck output as well: kevin$ make patchcheck ./python.exe ./Tools/scripts/patchcheck.py Getting the list of files that have been added/changed ... 1 file Fixing whitespace ... 0 files Fixing C file whitespace ... 0 files Fixing docs whitespace ... 0 files Docs modified ... NO Misc/ACKS updated ... NO Misc/NEWS updated ... NO configure regenerated ... not needed pyconfig.h.in regenerated ... not needed Thanks! -- assignee: ronaldoussoren components: Benchmarks, Library (Lib), Macintosh files: uuid_bytes_update.patch keywords: patch messages: 224671 nosy: kevinlondon, ronaldoussoren priority: normal severity: normal status: open title: uuid.bytes optimization type: performance versions: Python 2.7 Added file: http://bugs.python.org/file36241/uuid_bytes_update.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22131] uuid.bytes optimization
Alex Gaynor added the comment: `self.int.to_bytes(16, byteorder='big')` looks to be even faster (about 3x on my machine) -- nosy: +alex ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22131] uuid.bytes optimization
Changes by Alex Gaynor alex.gay...@gmail.com: -- versions: +Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22131] uuid.bytes optimization
Alex Gaynor added the comment: What I said only applies to the Python3 version of this patch. Thanks for submitting this. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22127] performance regression in socket getsockaddrarg()
Antoine Pitrou added the comment: Note that even the bytes version is still quite slow. UDP is used for light-weight protocols where you may send thousands or more messages per second. I'd be curious what the sendto() performance is in raw C. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22127 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22116] Weak reference support for C function objects
Changes by Antoine Pitrou pit...@free.fr: -- stage: test needed - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22116 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22116] Weak reference support for C function objects
Antoine Pitrou added the comment: @kilowu, your patch looks good to me. As a necessary step to include your contribution, could you please sign the contributor's agreement? See https://www.python.org/psf/contrib/contrib-form/ Thank you very much! -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22116 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22131] uuid.bytes optimization
Raymond Hettinger added the comment: I also like the way the patch cleans-up the code. -- nosy: +rhettinger ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11445] python.exe on OS X shared-llbrary build erroneously linked to MacPorts python library
Changes by koobs koobs.free...@gmail.com: -- nosy: +koobs ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11445 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20402] List comprehensions should be noted in for loop documentation
Rob Lanphier added the comment: Moving it earlier in the tutorial is likely to do more harm than help. In teaching Python, you need some gap between learning for-loops and learning list comprehensions (the former is a prerequisite for the latter). The problem here is that many people get list comprehensions foisted on them by reading code that has them in it. Since list comprehensions aren't called list comprehensions in the code, but rather, they look like funny for loops, many people will turn to the for loop documentation, and as of this writing, they won't find anything. There doesn't necessarily need to be the full example as in Alex's patch (though Alex's version seems fine to me), I think there should at least be some link to the list comprehension documentation, e.g. It is also possible to prepend a function onto a 'for' loop. This is a :ref:`list comprehensions tut-listcomps`, and is explained further in the next chapter. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20402 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
