Mailman 3 January 2009 - Python-Dev

Re: [Python-Dev] ParseTuple question
by Ulrich Eckhardt 04 Jan '09

04 Jan '09

[sorry, dropped one pair of mails off the list, hence also the overquoting] On Sunday 04 January 2009 01:07:08 Mark Hammond wrote: > > > On 'normal' windows you generally would need to use > > > WideCharToMultiByte() to get a 'char *' version of your wchar > > > string but I expect you already know that, so I doubt I understand > > > the question... > > > > Actually, I want the exact opposite. > > I'm not sure you can get it though :) Unless you can change Python itself, > you will be forced to convert filenames etc back and forward from wide to > narrow strings. This should roundtrip OK for all character in the current > code set. > > > 'char' strings under CE are mostly useless, in particular for > > filenames. Actually, they are useless under MS Windows in general, > > at least for the versions supported by Python 2.6/3.0, they all use > > UTF-16, only the desktop variants still have backward compatibility > > code to use 'char' strings, though with restricted functionality. > > Exactly - but for python 2.6, we are still somewhat forced to use that > 'char *' API in many cases. If the API didn't offer the automatic unicode > conversion, we would most likely have needed to implement it ourselves. > > > So, point is that I need a UTF-16 string in a function that might > > get either a string or a Unicode string. Preferably, I'd like to take > > the way that poses least resistance, so which one would you suggest? > > I'm not with you still: if a Python implemented function accepts either > string or unicode, then your utf16 string is perfect - its already unicode. > On the other hand, I thought you were faced with a Python function which, > as currently implemented, only accepts whatever the 's' format string > accepts. Such a function only accepts real PyString objects, so attempts at > passing it unicode will be futile. Obviously you could modify it to accept > a unicode, but clearly that would also mean adjusting everything that uses > the existing 'char *', which may end up fanning out to much more than you > expect. > > If I'm still misunderstanding, can you be more specific about the exact > problem (ie, the exact function you are referring to, and how you intend > calling it)? trunk/_fileio.c/fileio_init() Let's leave aside that you can also pass a filedescriptor, that function either takes a string or a Unicode string as first parameter. Now, under CE, I always need a 'wchar_t*' in order to open a file, how would I get at that easiest? My approach now is to simply use "O" as format specifier for the filename and then take a look at the object's type. If it is a char-string, I have to convert (under CE) or call the char-API (desktop MS Windows), if it is a Unicode string, I can use it as it is. Uli

2 1

PyOS_GetLastModificationTime
by Ulrich Eckhardt 03 Jan '09

03 Jan '09

Hi! The function PyOS_GetLastModificationTime() is documented in sys.rst as taking a "char*". However, in reality, it takes a "char*" and a "FILE*". Actually, it should take a "char const*", as it doesn't and shouldn't modify the path. Further, the normal version doesn't use the path at all, the RISCOS version in 2.7 does however, and for a CE port it would be convenient to have that info, too. There is another issue, and that is that the function isn't declared anywhere, and I'm not sure where it should be declared either. Actually, I'm not sure if is suitable/intended for public consumption, so I wonder if putting it into 'Include' would be right. Any suggestions how to deal with that issue? Uli

2 3

Bytes for the command line, process arguments and environment variables
by Victor Stinner 03 Jan '09

03 Jan '09

Hi, Python 3.0 is released and supports unicode everywhere, great! But as pointed by different people, bytes are required on non-Windows OS for backward compatibility. This email is just a sum up all many issues/email threads. Problems with Python 3.0: (1) Invalid unicode string on the command line => some people wants to get the command line arguments as bytes and so start even if non decodable unicode strings are present on the command line => http://bugs.python.org/issue3023 (2) Non decodable environment variables are skipped in os.environ => Create os.environb (or anything else) to get these variables as bytes (and be able to setup new variables as bytes) => Read the email thread "Python-3.0, unicode, and os.environ" (Decembre 2008) opened by Toshio Kuratomi (3) Support bytes for os.exec*() and subprocess.Popen(): process arguments and the environment variables => http://bugs.python.org/issue4035: my patch for os.exec*() => http://bugs.python.org/issue4036: my patch for subprocess.Popen() Command line ============ I like the curent behaviour and I don't want to change it. Be free to propose a solution to solve the issue ;-) Environment =========== I already proposed "os.environb" which will have the similar API than "os.environ" but with bytes. Relations between os.environb and os.environ: - for an undecodable variable value in os.environb, os.environ will raise a KeyError. Example with utf8 charset and os.environb[b'PATH'] = '\xff': path=os.environ['PATH'] will raise a KeyError to keep the current behaviour. - os.environ raises an UnicodeDecodeError if the key or value can not be encoded in the current charset. Example with ASCII charset: os.environ['PATH'] = '/home/hayp\xf4' - except undecodable variable values in os.environb, os.environ and os.environb will be consistent. Example: delete a variable in os.environb will also delete the key in os.environ. I think that most of these points (or all points) are ok for everyone (especially ok for Toshio Kuratomi and me :-)). Now I have to try to write an implementation of this, but it's complex, especially to keep os.environ and os.environb consistents! Processes ========= I proposed patches to fix non-Windows OS, but Antoine Pitrou wants also bytes on Windows. Amaury wrote that it's possible using the ANSI version of the Windows API. I don't know this API and so I can not contribute to this point. --- Rejected idea ============= Use a private Unicode block causes interoperability problems: - the block may be already used by other programs/libraires - 3rd party programs/libraries don't understand this block and may have problems this display/process the data (Is the idea really rejected? It has at least many problems) --- I don't have new solutions, it's just an email to restart the discussion about bytes ;-) Martin also asked for a PEP to change the posix module API to support bytes. -- Victor Stinner aka haypo http://www.haypocalc.com/blog/

2 1

#ifdef __cplusplus?
by Jim Jewett 03 Jan '09

03 Jan '09

Alexander Belopolsky wrote: > 4. Should exported symbols be always declared in headers or is it ok > to just declare them as extern in .c files where they are used? Is the concern that moving them to a header makes them part of the API? In other words, does replacing PyObject * PyFile_FromString(char *name, char *mode) { extern int fclose(FILE *); ... } with #include <stdio.h> mean that the <stdio.h> needs to be included from then on, even if PyFile_FromString stops relying upon it? -jJ

2 1

Python 3 - Mac Installer?
by Mark Summerfield 02 Jan '09

02 Jan '09

Hi, Just wondered if/when there'd be a Mac installer for Python 3? Thanks! -- Mark Summerfield, Qtrac Ltd, www.qtrac.eu C++, Python, Qt, PyQt - training and consultancy "Programming in Python 3" - ISBN 0137129297

7 11

A wart which should have been repaired in 3.0?
by skip＠pobox.com 02 Jan '09

02 Jan '09

The doc for os.path.commonprefix states: Return the longest path prefix (taken character-by-character) that is a prefix of all paths in list. If list is empty, return the empty string (''). Note that this may return invalid paths because it works a character at a time. I remember encountering this in an earlier version of Python 2.x (maybe 2.2 or 2.3?) and "fixed" it to work by pathname components instead of by characters. That had to be reverted because it was a behavior change and broke code which used it for strings which didn't represent paths. After the reversion I then forgot about it. I just stumbled upon it again. It seems to me this would have been a good thing to fix in 3.0. Is this something which could change in 3.1 (or be deprecated in 3.1 with deletion in 3.2)? Skip

12 39

Summary of Python tracker Issues
by Python tracker 02 Jan '09

02 Jan '09

ACTIVITY SUMMARY (12/26/08 - 01/02/09) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue number. Do NOT respond to this message. 2261 open (+32) / 14372 closed (+27) / 16633 total (+59) Open issues with patches: 771 Average duration of open issues: 708 days. Median duration of open issues: 2759 days. Open Issues Breakdown open 2237 (+32) pending 24 ( +0) Issues Created Or Reopened (60) _______________________________ [distutils] - error when processing the "--formats=tar" option 12/27/08 http://bugs.python.org/issue1885 reopened tarek patch Error in SocketServer UDP documentation 12/26/08 CLOSED http://bugs.python.org/issue4752 created shazow Faster opcode dispatch on gcc 12/26/08 http://bugs.python.org/issue4753 created pitrou patch winsound documentation (about stoping sounds) 12/26/08 CLOSED http://bugs.python.org/issue4754 created ocean-city patch Common path prefix 12/27/08 http://bugs.python.org/issue4755 created skip.montanaro patch, patch, needs review zipfile.is_zipfile: added support for file-like objects 12/27/08 CLOSED http://bugs.python.org/issue4756 created gagenellina patch reject unicode in zlib 12/27/08 http://bugs.python.org/issue4757 created haypo patch Python 3.0 internet documentation needs work 12/27/08 http://bugs.python.org/issue4758 created beazley bytearray.translate() should support None first argument 12/27/08 CLOSED http://bugs.python.org/issue4759 created georg.brandl patch cmp gone---What's new in 3.1 12/28/08 http://bugs.python.org/issue4760 created LambertDW create Python wrappers for openat() and others 12/28/08 http://bugs.python.org/issue4761 created pitrou PyFile_FromFd() doesn't set the file name 12/28/08 http://bugs.python.org/issue4762 created haypo PyErr_GivenExceptionMatches documentation out of date 12/28/08 CLOSED http://bugs.python.org/issue4763 created garcia open('existing_dir') -> IOError instance's attr filename is None 12/29/08 CLOSED http://bugs.python.org/issue4764 created zuo IDLE fails to "Delete Custom Key Set" properly 12/29/08 http://bugs.python.org/issue4765 created alex_fainshtein email documentation needs to be precise about strings/bytes 12/29/08 http://bugs.python.org/issue4766 created beazley email.mime incorrectly documented (or implemented) 12/29/08 CLOSED http://bugs.python.org/issue4767 created beazley email.generator.Generator object bytes/str crash - b64encode() b 12/29/08 http://bugs.python.org/issue4768 created beazley patch b64decode should accept strings or bytes 12/29/08 http://bugs.python.org/issue4769 created beazley binascii module, crazy error messages, unexpected behavior 12/29/08 http://bugs.python.org/issue4770 created beazley Bad examples in hashlib documentation 12/29/08 CLOSED http://bugs.python.org/issue4771 created beazley undesired switch fall-through in socketmodule.c 12/29/08 http://bugs.python.org/issue4772 created dontbugme patch, needs review HTTPMessage not documented and has inconsistent API across 2.6/3 12/29/08 http://bugs.python.org/issue4773 created beazley threding, bsddb and double free or corruption (fasttop) 12/29/08 http://bugs.python.org/issue4774 created aspineux Incorrect documentation - UTC time 12/30/08 http://bugs.python.org/issue4775 created luckmor distutils documentation 12/30/08 CLOSED http://bugs.python.org/issue4776 created steve21 nntplib - python 2.5 12/30/08 CLOSED http://bugs.python.org/issue4777 created morrowc patch Small typo in multiprocessing documentation 12/30/08 CLOSED http://bugs.python.org/issue4778 created hdima patch Can't import Tkinter 12/30/08 CLOSED http://bugs.python.org/issue4779 created pierre.lhoste Makefile.pre.in patch to run regen on OSX (framework build) 12/30/08 CLOSED http://bugs.python.org/issue4780 created ronaldoussoren patch, patch, needs review The function, Threading.Timer.run(), may be Inappropriate 12/30/08 http://bugs.python.org/issue4781 created gestapo21th json documentation missing load(), loads() 12/30/08 CLOSED http://bugs.python.org/issue4782 created beazley json documentation needs a BAWM (Big A** Warning Message) 12/30/08 http://bugs.python.org/issue4783 created beazley Mismatch in documentation for module "webbrowser" 12/30/08 CLOSED http://bugs.python.org/issue4784 created improper_smile json.JSONDecoder() strict argument undocumented and potentially 12/30/08 http://bugs.python.org/issue4785 created beazley xml.etree.ElementTree module name in Python 3 12/30/08 CLOSED http://bugs.python.org/issue4786 created beazley Curses Unicode Support 12/30/08 http://bugs.python.org/issue4787 created atagar1 two bare "except" clauses are used in the ssl module 12/31/08 CLOSED http://bugs.python.org/issue4788 created giampaolo.rodola patch Documentation changes break existing URIs 12/31/08 CLOSED http://bugs.python.org/issue4789 created msapiro Optimization to heapq module 12/31/08 CLOSED http://bugs.python.org/issue4790 created nilton patch retrlines('LIST') and dir hang at end of listing in ftplib (pyth 12/31/08 http://bugs.python.org/issue4791 created chris.mahan PythonCmd in Modules/_tkinter.c should use the given "interp" pa 12/31/08 http://bugs.python.org/issue4792 created gpolo patch Glossary incorrectly describes a decorator as "merely syntactic 12/31/08 CLOSED http://bugs.python.org/issue4793 created kermode garbage collector blocks and takes worst-case linear time wrt nu 12/31/08 CLOSED http://bugs.python.org/issue4794 created darrenr inspect.isgeneratorfunction inconsistent with other inspect func 12/31/08 CLOSED http://bugs.python.org/issue4795 created stevenjd Decimal to receive from_float method 12/31/08 http://bugs.python.org/issue4796 created stevenjd test_fileio error (windows) 01/01/09 CLOSED http://bugs.python.org/issue4797 created ocean-city patch Update deprecation of 'new' module in PEP 4. 01/01/09 CLOSED http://bugs.python.org/issue4798 created vshenoy patch handling inf/nan in '%f' 01/01/09 http://bugs.python.org/issue4799 created cdavid patch little inaccuracy in Py_ssize_t explanation 01/01/09 CLOSED http://bugs.python.org/issue4800 created exe _collections module fail to build on cygwin 01/01/09 CLOSED http://bugs.python.org/issue4801 created rpetrov detect_tkinter for cygwin 01/01/09 http://bugs.python.org/issue4802 created rpetrov patch Manas Thapliyal sent you a Friend Request on Yaari 01/02/09 CLOSED http://bugs.python.org/issue4803 created gravitywarrior1 Python on Windows disables all C runtime library assertions 01/02/09 http://bugs.python.org/issue4804 created mhammond Make python code compilable with a C++ compiler 01/02/09 http://bugs.python.org/issue4805 created belopolsky patch Function calls taking a generator as star argument can mask Type 01/02/09 http://bugs.python.org/issue4806 created hagen wrong wsprintf usage 01/02/09 http://bugs.python.org/issue4807 created eckhardt patch doc issue for threading module (name/daemon properties) 01/02/09 http://bugs.python.org/issue4808 created cgoldberg 2.5.4 release missing from python.org/downloads 01/02/09 http://bugs.python.org/issue4809 created rsyring timeit needs "official" '--' flag 01/02/09 http://bugs.python.org/issue4810 created skip.montanaro Issues Now Closed (95) ______________________ MacOS.GetCreatorAndType() and SetCreatorAndType() broken on inte 388 days http://bugs.python.org/issue1594 ronaldoussoren unittest.py modernization 311 days http://bugs.python.org/issue2153 pitrou patch IDLE doesn't work with Tk 8.5 under python 2.5 and older 250 days http://bugs.python.org/issue2693 gpolo patch 2to3 converts long(itude) argument to int 244 days http://bugs.python.org/issue2734 benjamin.peterson test_list on 64-bit platforms 210 days http://bugs.python.org/issue3055 ronaldoussoren ScrolledText can't be placed in a PanedWindow 182 days http://bugs.python.org/issue3248 gpolo patch fix_imports does not handle intra-package renames 182 days http://bugs.python.org/issue3260 benjamin.peterson ``make htmlview`` for docs fails on OS X 129 days http://bugs.python.org/issue3644 georg.brandl What's New in 2.6 - corrections 126 days http://bugs.python.org/issue3671 georg.brandl Cycles with some iterator are leaking. 129 days http://bugs.python.org/issue3680 pitrou patch tkColorChooser may fail if no color is selected 117 days http://bugs.python.org/issue3767 loewis patch python-2.6b3.msi and python-2.6b3.amd64.msi can't both be instal 110 days http://bugs.python.org/issue3833 loewis IDLE does not open too 85 days http://bugs.python.org/issue4049 loewis patch PyUnicode_DecodeUTF16(..., byteorder=0) gets it wrong on Mac OS 83 days http://bugs.python.org/issue4060 benjamin.peterson patch distutils.util.get_platform() is wrong for universal builds on m 82 days http://bugs.python.org/issue4064 ronaldoussoren patch, needs review Lib/lib2to3/*.pickle are shipped / modified in the build 81 days http://bugs.python.org/issue4096 loewis xml.etree.ElementTree does not read xml-text over page bonderies 60 days http://bugs.python.org/issue4100 georg.brandl patch Docs for BaseHandler.protocol_xxx methods are unclear 72 days http://bugs.python.org/issue4156 georg.brandl re module treats raw strings as normal strings 51 days http://bugs.python.org/issue4185 georg.brandl dis.findlinestarts is missing from dis.__all__ and from the onli 65 days http://bugs.python.org/issue4222 georg.brandl struct.pack('L', -1) 64 days http://bugs.python.org/issue4228 georg.brandl patch zipfile.py -> is_zipfile leaves file open when error 58 days http://bugs.python.org/issue4241 pitrou struct module: pack/unpack and byte order on x86_64 51 days http://bugs.python.org/issue4270 pitrou Wrong encoding in files saved from IDLE (3.0rc2 on Windows) 45 days http://bugs.python.org/issue4323 loewis patch Pickle tests fail w/o _pickle extension 36 days http://bugs.python.org/issue4374 alexandre.vassalotti patch pypirc default is not at the right format 36 days http://bugs.python.org/issue4400 benjamin.peterson patch In Lib\tkinter\filedialog.py, class Directory define loss a"_" 37 days http://bugs.python.org/issue4406 benjamin.peterson patch IDLE string problem in Run/Run Module 35 days http://bugs.python.org/issue4410 loewis unittest - use contexts to assert exceptions 31 days http://bugs.python.org/issue4444 pitrou patch Module wsgiref is not python3000 ready (unicode issues) 28 days http://bugs.python.org/issue4522 pitrou patch askdirectory() in tkinter.filedialog is broken 27 days http://bugs.python.org/issue4539 gpolo IDLE shutdown if I run an edited file contains chinese 19 days http://bugs.python.org/issue4623 loewis distutils chokes on empty options arg in the setup function 17 days http://bugs.python.org/issue4646 tarek patch, patch bytes,join and bytearray.join not in manual; help for bytes.join 12 days http://bugs.python.org/issue4669 georg.brandl setup.py exception when db_setup_debug = True 16 days http://bugs.python.org/issue4670 amaury.forgeotdarc pydoc executes the code to be documented 12 days http://bugs.python.org/issue4671 georg.brandl a list comprehensions tests for pybench 11 days http://bugs.python.org/issue4677 pitrou patch 'b' formatter is actually unsigned char 10 days http://bugs.python.org/issue4682 georg.brandl Bad AF_PIPE address in multiprocessing documentation 9 days http://bugs.python.org/issue4695 georg.brandl Clarification needed for subprocess convenience functions in Pyt 9 days http://bugs.python.org/issue4697 georg.brandl range objects becomes hashable after attribute access 11 days http://bugs.python.org/issue4701 ncoghlan patch [PATCH] msvc9compiler raises IOError when no compiler found inst 11 days http://bugs.python.org/issue4702 tarek patch Python 3.0 halts on shutdown when settrace is set 5 days http://bugs.python.org/issue4716 pitrou Endianness and universal builds problems 6 days http://bugs.python.org/issue4728 ronaldoussoren cPickle corrupts high-unicode strings 4 days http://bugs.python.org/issue4730 alexandre.vassalotti suggest change to "Failed to find the necessary bits to build th 5 days http://bugs.python.org/issue4731 georg.brandl Object allocation stress leads to segfault on RHEL 8 days http://bugs.python.org/issue4732 pitrou [patch] Let users do help('@') and so on for confusing syntax co 3 days http://bugs.python.org/issue4739 georg.brandl patch pickle test for protocol 3 (HIGHEST_PROTOCOL in py3k) 2 days http://bugs.python.org/issue4740 ocean-city patch, easy 3.0 distutils byte-compiling -> Syntax error: unknown encoding: 8 days http://bugs.python.org/issue4742 georg.brandl patch intra-pkg multiple import (import local1, local2) not fixed 2 days http://bugs.python.org/issue4743 benjamin.peterson socket.send obscure error message 3 days http://bugs.python.org/issue4745 georg.brandl Misguiding wording 3.0 c-api reference 4 days http://bugs.python.org/issue4746 georg.brandl SyntaxError executing a script containing non-ASCII characters i 7 days http://bugs.python.org/issue4747 amaury.forgeotdarc patch yield expression vs lambda 1 days http://bugs.python.org/issue4748 benjamin.peterson patch, needs review Error in SocketServer UDP documentation 1 days http://bugs.python.org/issue4752 georg.brandl winsound documentation (about stoping sounds) 1 days http://bugs.python.org/issue4754 georg.brandl patch zipfile.is_zipfile: added support for file-like objects 0 days http://bugs.python.org/issue4756 pitrou patch bytearray.translate() should support None first argument 1 days http://bugs.python.org/issue4759 georg.brandl patch PyErr_GivenExceptionMatches documentation out of date 0 days http://bugs.python.org/issue4763 benjamin.peterson open('existing_dir') -> IOError instance's attr filename is None 1 days http://bugs.python.org/issue4764 benjamin.peterson email.mime incorrectly documented (or implemented) 3 days http://bugs.python.org/issue4767 georg.brandl Bad examples in hashlib documentation 0 days http://bugs.python.org/issue4771 benjamin.peterson distutils documentation 2 days http://bugs.python.org/issue4776 georg.brandl nntplib - python 2.5 1 days http://bugs.python.org/issue4777 haypo patch Small typo in multiprocessing documentation 0 days http://bugs.python.org/issue4778 georg.brandl patch Can't import Tkinter 0 days http://bugs.python.org/issue4779 georg.brandl Makefile.pre.in patch to run regen on OSX (framework build) 3 days http://bugs.python.org/issue4780 ronaldoussoren patch, patch, needs review json documentation missing load(), loads() 2 days http://bugs.python.org/issue4782 georg.brandl Mismatch in documentation for module "webbrowser" 2 days http://bugs.python.org/issue4784 georg.brandl xml.etree.ElementTree module name in Python 3 1 days http://bugs.python.org/issue4786 benjamin.peterson two bare "except" clauses are used in the ssl module 0 days http://bugs.python.org/issue4788 benjamin.peterson patch Documentation changes break existing URIs 2 days http://bugs.python.org/issue4789 georg.brandl Optimization to heapq module 1 days http://bugs.python.org/issue4790 nilton patch Glossary incorrectly describes a decorator as "merely syntactic 0 days http://bugs.python.org/issue4793 benjamin.peterson garbage collector blocks and takes worst-case linear time wrt nu 2 days http://bugs.python.org/issue4794 loewis inspect.isgeneratorfunction inconsistent with other inspect func 0 days http://bugs.python.org/issue4795 rhettinger test_fileio error (windows) 0 days http://bugs.python.org/issue4797 ocean-city patch Update deprecation of 'new' module in PEP 4. 0 days http://bugs.python.org/issue4798 georg.brandl patch little inaccuracy in Py_ssize_t explanation 1 days http://bugs.python.org/issue4800 loewis _collections module fail to build on cygwin 0 days http://bugs.python.org/issue4801 amaury.forgeotdarc Manas Thapliyal sent you a Friend Request on Yaari 0 days http://bugs.python.org/issue4803 benjamin.peterson zappyfiles.py absent from MacPython binary 1967 days http://bugs.python.org/issue789545 ronaldoussoren -O breaks bundlebuilder --standalone 1877 days http://bugs.python.org/issue841800 ronaldoussoren bundlebuilder: an arg to disable zipping the code 1779 days http://bugs.python.org/issue900506 ronaldoussoren bundlebuilder: easily keep main routine in orig location 1779 days http://bugs.python.org/issue900514 ronaldoussoren plat-mac/videoreader.py not working on OS X 1778 days http://bugs.python.org/issue900949 ronaldoussoren BuildApplet needs to get more BuildApplication features 1771 days http://bugs.python.org/issue905737 ronaldoussoren Implement BundleBuilder GUI as plugin component 1688 days http://bugs.python.org/issue957652 ronaldoussoren method after() and afer_idle() are not thread save 1623 days http://bugs.python.org/issue995925 gpolo Problems importing packages in ZIP file 1594 days http://bugs.python.org/issue1011893 loewis os.times() is bogus 1547 days http://bugs.python.org/issue1040026 loewis patch macostools.mkdirs: not thread-safe 1409 days http://bugs.python.org/issue1149804 ronaldoussoren plat-mac videoreader.py auido format info 729 days http://bugs.python.org/issue1627952 ronaldoussoren EasyDialogs patch to remove aepack dependency 567 days http://bugs.python.org/issue1737832 ronaldoussoren patch Top Issues Most Discussed (10) ______________________________ 36 Faster opcode dispatch on gcc 7 days open http://bugs.python.org/issue4753 21 Patch for better thread support in hashlib 7 days open http://bugs.python.org/issue4751 17 shutil.rmtree is vulnerable to a symlink attack 31 days open http://bugs.python.org/issue4489 15 Is shared lib building broken on trunk for Mac OS X? 33 days pending http://bugs.python.org/issue4472 14 retrlines('LIST') and dir hang at end of listing in ftplib (pyt 2 days open http://bugs.python.org/issue4791 12 Curses Unicode Support 3 days open http://bugs.python.org/issue4787 12 2.6.1 breaks many applications that embed Python on Windows 27 days open http://bugs.python.org/issue4566 10 wsgiref package totally broken 11 days open http://bugs.python.org/issue4718 10 complex constructor doesn't accept string with nan and inf 322 days open http://bugs.python.org/issue2121 9 Patch to make zlib-objects better support threads 9 days open http://bugs.python.org/issue4738

1 0

opcode dispatch optimization
by Antoine Pitrou 02 Jan '09

02 Jan '09

Hello, I would like to mention that I've written a patch which enables "threaded interpretation" on the ceval loop with gcc (*). On my computer (an Athlon X2 3600+), it is good for a 15-20% speedup of the interpreter on pystone and pybench. I also had the opportunity to test it on a Core2-derived CPU, where it doesn't make a difference (I conjecture it's because Core2 CPUs have hardware-based indirect branch optimizations). It will make no difference if the interpreter is compiled with something else than gcc (I tested on Windows). The additional complexity is very small. There's a separate script which is run to build the dispatch table (only if needed, that is if dis.py has been modified). In ceval.c, there are a couple of macros and some #ifdef's. That's all. It breaks no test in the regression suite. Could other people test and report their results here? (the patch is for py3k, btw). Also, what are you thoughts for/against integrating this patch in the standard interpreter? Regards Antoine. (*) please note: it has nothing to see with multithreading.

4 4

floatformat vs float_format
by David Cournapeau 02 Jan '09

02 Jan '09

Hi, In python 2.6, there have been some effort to make float formatting more consistent between platforms, which is nice. Unfortunately, there is still one corner case, for example on windows: print a -> print 'inf' print '%f' % a -> print '1.#INF' The difference being that in the second case, the formatting is done in floatformat.c (in stringobject.c), whereas in the first case, it is done in format_float (in floatobject.c). Shouldn't both functions be calling the same underlying implementation, to avoid those inconsistencies ? thanks, David

2 2

test_subprocess and sparc buildbots
by Nick Coghlan 01 Jan '09

01 Jan '09

Does anyone have local access to a sparc machine to try to track down the ongoing buildbot failures in test_subprocess? (I think the problem is specific to 3.x builds on sparc machines, but I haven't checked the buildbots all that closely - that assessment is just based on what I recall of the buildbot failure emails). Cheers, Nick. -- Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia ---------------------------------------------------------------

4 6