Mailman 3 March 2009 - Python-Dev

Summary of Python tracker Issues
by Python tracker 13 Mar '09

13 Mar '09

ACTIVITY SUMMARY (03/06/09 - 03/13/09) 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. 2388 open (+38) / 14920 closed (+16) / 17308 total (+54) Open issues with patches: 837 Average duration of open issues: 658 days. Median duration of open issues: 399 days. Open Issues Breakdown open 2359 (+37) pending 29 ( +1) Issues Created Or Reopened (56) _______________________________ 2to3 wrong for types.StringTypes 03/08/09 http://bugs.python.org/issue5425 reopened hagen patch cmpfunc in Python 3.0.1 windows installer 03/10/09 http://bugs.python.org/issue5431 reopened Nigel Galloway plistlib contains unescaped hex sequence in doc string 03/06/09 http://bugs.python.org/issue5432 created jim.correia Excessive optimization in IncrementalNewlineDecoder 03/06/09 CLOSED http://bugs.python.org/issue5433 created pitrou patch datetime.MonthDelta 03/07/09 http://bugs.python.org/issue5434 created jess.austin patch test_httpservers on Debian Testing 03/07/09 http://bugs.python.org/issue5435 created zamotcr test_distutils fails with official Mac OS X Installer Disk Image 03/07/09 http://bugs.python.org/issue5436 created oefe Singleton MemoryError can hold traceback data and locals indefin 03/08/09 http://bugs.python.org/issue5437 created pitrou patch test_bigmem.test_from_2G_generator uses more memory than expecte 03/08/09 http://bugs.python.org/issue5438 created pitrou string.strip behaves strangly 03/08/09 CLOSED http://bugs.python.org/issue5439 created dwjang string.strip behaves strangly 03/08/09 CLOSED http://bugs.python.org/issue5440 created dwjang Convenience API for timeit.main 03/08/09 http://bugs.python.org/issue5441 created ncoghlan easy [3.1alpha1] test_importlib fails on Mac OSX 10.5.6 03/08/09 http://bugs.python.org/issue5442 created cartman trivial typo in itertools documentation 03/10/09 http://bugs.python.org/issue5443 reopened donlorenzo patch .chm build process on Windows doesn't use the right filename 03/08/09 http://bugs.python.org/issue5444 created gagenellina patch codecs.StreamWriter.writelines problem when passed generator 03/08/09 http://bugs.python.org/issue5445 created dlesco doc building progress on Windows doesn't show any color 03/08/09 CLOSED http://bugs.python.org/issue5446 created gagenellina patch future unicode literals and r'\u' 03/08/09 http://bugs.python.org/issue5447 created pooryorick patch Add precision property to decimal.Decimal 03/08/09 CLOSED http://bugs.python.org/issue5448 created dlesco bug fix to prevent io.BytesIO from accepting arbitrary keyword a 03/08/09 http://bugs.python.org/issue5449 created erickt patch test_tcl testLoadTk fails if DISPLAY defined but connect fails, 03/09/09 http://bugs.python.org/issue5450 created bitdancer patch patch to make io.StringIO consistent with open with respect to n 03/09/09 CLOSED http://bugs.python.org/issue5451 created erickt patch Documentation for io.StringIO has wrong info for arguments 03/09/09 CLOSED http://bugs.python.org/issue5452 created erickt pydoc -k fails (release30-maint patch) 03/09/09 http://bugs.python.org/issue5453 created dariusp patch pydoc -k fails (py3k patch) 03/09/09 CLOSED http://bugs.python.org/issue5454 created dariusp patch csv module no longer works as expected when file opened in binar 03/09/09 http://bugs.python.org/issue5455 created skip.montanaro io.StringIO's universal newlines support is broken in 3.0.1 03/09/09 CLOSED http://bugs.python.org/issue5456 created erickt ZipFile writes incorrect modification time (second is off-by-one 03/09/09 CLOSED http://bugs.python.org/issue5457 created ctheune threading.Thread.join() documentation: missing 'from version' fo 03/09/09 CLOSED http://bugs.python.org/issue5458 created eyal.gordon msiexec not creating msvcr90.dll with python -2.6.1.msi 03/09/09 http://bugs.python.org/issue5459 created cjlesh Python 3.0 grammar is ambiguous with the addition of star_expr 03/09/09 http://bugs.python.org/issue5460 created fabioz python3 symlink 03/09/09 http://bugs.python.org/issue5461 created dripton Pythonwin Vista Compatibility 03/09/09 CLOSED http://bugs.python.org/issue5462 created jearls Compiler warning get_ulong is never used 3.x 03/09/09 http://bugs.python.org/issue5463 created andreas.schawo patch msgfmt.py does not work with plural form 03/09/09 http://bugs.python.org/issue5464 created steve_geo No edit in IDLE in right click context menu 03/10/09 CLOSED http://bugs.python.org/issue5465 created ESlim Tix.Balloon causes TCLError: unknown color name "{#ffff60}" in P 03/10/09 http://bugs.python.org/issue5466 created andrewp22 tools\msi\merge.py is sensitive to lack of config.py 03/10/09 http://bugs.python.org/issue5467 created tim.golden patch urlencode does not handle "bytes", and could easily handle alter 03/10/09 http://bugs.python.org/issue5468 created dmahn Reference paragraph about the constructs that bind names needs u 03/10/09 http://bugs.python.org/issue5469 created MLModel MSI installer misses zipdir.zip file in Lib\test 03/10/09 http://bugs.python.org/issue5470 created tim.golden patch os.path.expanduser('~') doesnt works correctly when HOME is '/' 03/10/09 http://bugs.python.org/issue5471 created pancake patch distutils.test_util fails to restore os.uname; causes test_platf 03/10/09 CLOSED http://bugs.python.org/issue5472 created tim.golden patch round(float, ndigits<0) sometimes rounds to odd 03/10/09 http://bugs.python.org/issue5473 created dingo distutils produces invalid RPM packages of prerelease python pac 03/11/09 http://bugs.python.org/issue5474 created Rudd-O patch urllib2.getproxies not documented 03/11/09 http://bugs.python.org/issue5475 created timmie datetime: timedelta(minutes = i) silently fails with numpy.int32 03/11/09 http://bugs.python.org/issue5476 created barronh Typo in itertools documentation 03/11/09 CLOSED http://bugs.python.org/issue5477 created thomasguest document mistake xml.dom.minidom.Element 03/12/09 http://bugs.python.org/issue5478 created hsmtkk Add an easy way to provide total ordering now that __cmp__ is de 03/12/09 http://bugs.python.org/issue5479 created mrts ".egg-info" => ".pkg-info" 03/12/09 CLOSED http://bugs.python.org/issue5480 created zooko Expand Decimal.__format__() support to include "n" 03/12/09 http://bugs.python.org/issue5481 created rhettinger RFC: improve distutils bdist_rpm so it builds pure python module 03/13/09 http://bugs.python.org/issue5482 created Rudd-O [PATCH]Add FastDbfilenameShelf: shelf nerver sync cache even whe 03/13/09 http://bugs.python.org/issue5483 created zhigang patch subprocess.call() fails for .bat files on Windows, if executable 03/13/09 http://bugs.python.org/issue5484 created sandberg pyexpat has no unit tests for UseForeignDTD functionality 03/13/09 http://bugs.python.org/issue5485 created exarkun patch Issues Now Closed (36) ______________________ Update PEP 3135 (super()) 360 days http://bugs.python.org/issue2312 gvanrossum patch string representation of range and dictionary views 335 days http://bugs.python.org/issue2610 benjamin.peterson patch tkSimpleDialog Window Flashing 325 days http://bugs.python.org/issue2638 gpolo patch test issue 309 days http://bugs.python.org/issue2771 ajaksu2 Remove DeprecationWarning in _warnings about 'line' 200 days http://bugs.python.org/issue3652 brett.cannon patch test_bigmem broken 193 days http://bugs.python.org/issue3700 pitrou patch 2.6rc1: test_threading hangs on FreeBSD 6.3 i386 179 days http://bugs.python.org/issue3863 bms patch Issue with RotatingFileHandler logging handler on Windows 77 days http://bugs.python.org/issue4749 neyro PythonCmd in Modules/_tkinter.c should use the given "interp" pa 65 days http://bugs.python.org/issue4792 gpolo patch Guarantee that Tkinter.Text.search returns a string 25 days http://bugs.python.org/issue5193 gpolo patch Enhance 3.1 IDLE to exec IDLESTARTUP/PYTHONSTARTUP on restart 25 days http://bugs.python.org/issue5234 gpolo patch Distutils in trunk does not work with old Python (2.3 - 2.5) 6 days http://bugs.python.org/issue5394 tarek patch Core dumps on the Solaris buildbot 1 days http://bugs.python.org/issue5429 pitrou patch Excessive optimization in IncrementalNewlineDecoder 0 days http://bugs.python.org/issue5433 pitrou patch string.strip behaves strangly 0 days http://bugs.python.org/issue5439 loewis string.strip behaves strangly 0 days http://bugs.python.org/issue5440 loewis doc building progress on Windows doesn't show any color 0 days http://bugs.python.org/issue5446 benjamin.peterson patch Add precision property to decimal.Decimal 1 days http://bugs.python.org/issue5448 dlesco patch to make io.StringIO consistent with open with respect to n 0 days http://bugs.python.org/issue5451 erickt patch Documentation for io.StringIO has wrong info for arguments 0 days http://bugs.python.org/issue5452 benjamin.peterson pydoc -k fails (py3k patch) 0 days http://bugs.python.org/issue5454 loewis patch io.StringIO's universal newlines support is broken in 3.0.1 1 days http://bugs.python.org/issue5456 benjamin.peterson ZipFile writes incorrect modification time (second is off-by-one 1 days http://bugs.python.org/issue5457 loewis threading.Thread.join() documentation: missing 'from version' fo 0 days http://bugs.python.org/issue5458 georg.brandl Pythonwin Vista Compatibility 0 days http://bugs.python.org/issue5462 benjamin.peterson No edit in IDLE in right click context menu 0 days http://bugs.python.org/issue5465 loewis distutils.test_util fails to restore os.uname; causes test_platf 1 days http://bugs.python.org/issue5472 tarek patch Typo in itertools documentation 0 days http://bugs.python.org/issue5477 rhettinger ".egg-info" => ".pkg-info" 0 days http://bugs.python.org/issue5480 zooko configure argument --libdir is ignored 1859 days http://bugs.python.org/issue891930 matejcik __name__ available during class dictionary build 1244 days http://bugs.python.org/issue1324261 amaury.forgeotdarc ScrolledText hungs up in some conditions 1169 days http://bugs.python.org/issue1390086 amaury.forgeotdarc Proper locking with asynchronous callbacks. 1140 days http://bugs.python.org/issue1412632 amaury.forgeotdarc patch Unicode IOError: execfile(u'\u043a\u043a\u043a/x.py') 1130 days http://bugs.python.org/issue1422398 amaury.forgeotdarc filterwarnings('error') has no effect 925 days http://bugs.python.org/issue1548371 brett.cannon symbol conflict for 'readahead' 692 days http://bugs.python.org/issue1701192 amaury.forgeotdarc Top Issues Most Discussed (10) ______________________________ 13 csv fails when file is opened in binary mode 67 days open http://bugs.python.org/issue4847 11 Add named tuple reader to CSV module 425 days open http://bugs.python.org/issue1818 8 Allow auto-numbered replacement fields in str.format() strings 29 days open http://bugs.python.org/issue5237 7 Regexp 2.7 (modifications to current re 2.2.2) 332 days open http://bugs.python.org/issue2636 6 test_tcl testLoadTk fails if DISPLAY defined but connect fails, 5 days open http://bugs.python.org/issue5450 6 codecs.StreamWriter.writelines problem when passed generator 5 days open http://bugs.python.org/issue5445 5 Add an easy way to provide total ordering now that __cmp__ is d 1 days open http://bugs.python.org/issue5479 5 distutils produces invalid RPM packages of prerelease python pa 3 days open http://bugs.python.org/issue5474 5 csv module no longer works as expected when file opened in bina 5 days open http://bugs.python.org/issue5455 5 test_httpservers on Debian Testing 6 days open http://bugs.python.org/issue5435

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wait time [was: Ext4 data loss]
by Jim Jewett 13 Mar '09

13 Mar '09

It is starting to look as though flush (and close?) should take an optional wait parameter, to indicate how much re-assurance you're willing to wait for. It also looks like we can't know enough to predict all sensible symbolic constants -- so instead use a floating point numeric value. f.flush(wait=0) ==> current behavior f.flush(wait=1) ==> Do everything you can. On a Mac, this would apparently mean (everything up to and including) fcntl(fd, F_FULLSYNC) f.flush(wait=0.5) ==> somewhere in between, depending on the operating system and file system and disk drive and other stuff the devoloper won't know in advance. The exact interpretation of intermediate values might depend on the installation or even change over time; the only invariant would be that higher values are at least as safe, and lower values are at least as fast. -jJ

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py: urls, new bazaar plugin available
by Barry Warsaw 13 Mar '09

13 Mar '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Bazaar users! There's a new Bazaar plugin you can use to more easily access read- only or read-write branches on code.python.org. This plugin provides the 'py:' url prefix. For example, to get the trunk branch with the plugin installed, you can now do: bzr branch py:trunk or to get the 2.6 branch you can do: bzr branch py:2.6 You can also use this to get user branches, e.g. my email rewrite branch: bzr branch py:~barry/30email If you have write access to branches on code.python.org, you can either set the environment variable $PYDEV_USER or the Bazaar configuration option pydev_user (the value doesn't matter) to get bzr +ssh access instead of the standard http access. py: works both for branching and pushing. Thanks to Karl Fogel for the implementation. You'll need Karl's pydev plugin branch, and instructions on installing this are available here: http://tinyurl.com/aq55oc I've updated the wiki page with additional details: http://wiki.python.org/moin/Bazaar Enjoy! Barry -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Darwin) iQCVAwUBSbk3xHEjvBPtnXfVAQIiVgQAt3GwmDSkFjog/mp4PxVKn/F6MQoEDa/A 0nNysiU2oEvUXDBWPlab2V53tqpZ/uvOS17hl7ZhlDe+Z2jUUYiCkH+Hfvpz5F9n u0Gf+5dMA7GQkLhvOezu7r6ngu2mmBB84ZwAfX4tJM+bBuQEn+U3BuRspkDiCb0S iZONBdHyk5g= =Pb2v -----END PGP SIGNATURE-----

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Formatting mini-language suggestion
by Raymond Hettinger 13 Mar '09

13 Mar '09

The current formatting mini-language provisions left/right/center alignment, prefixes for 0b 0x 0o, and rules on when to show the plus-sign. I think it would be far more useful to provision a simple way of specifying a thousands separator. Financial users in particular find the locale approach to be frustrating and non-obvious. Putting in a thousands separator is a common task for output destined to be read by non-programmers. Raymond

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Re: [Python-Dev] [Python-ideas] Rough draft: Proposed format specifier for a thousands separator (discussion moved from python-dev)
by Raymond Hettinger 13 Mar '09

13 Mar '09

Here's an update incorporating all the comments received so far. * Put into PEP format * Fixed typos * The suggestion for modifying the locale module was dropped. * The "n" specifier in the local module was referenced * Fixed minimumwidth --> width * PERIOD --> DOT * Added suggestions by Lie Ryan and Eric Smith ----------------------------------------------------------- PEP: XXX Title: Format Specifier for Thousands Separator Version: $Revision$ Last-Modified: $Date$ Author: Raymond Hettinger <python at rcn.com> Status: Draft Type: Standards Track Content-Type: text/x-rst Created: 12-Mar-2009 Post-History: 12-Mar-2009 Motivation ========== Provide a simple, non-locale aware way to format a number with a thousands separator. Adding thousands separators is one of the simplest ways to improve the professional appearance and readability of output exposed to end users. In the finance world, output with commas is the norm. Finance users and non-professional programmers find the locale approach to be frustrating, arcane and non-obvious. It is not the goal to replace locale or to accommodate every possible convention. The goal is to make a common task easier for many users. Current Version of the Mini-Language ==================================== * `Python 2.6 docs`_ .. _Python 2.6 docs: http://docs.python.org/library/string.html#formatstrings * PEP 3101 Advanced String Formatting Research so far =============== Scanning the web, I've found that thousands separators are usually one of COMMA, DOT, SPACE, or UNDERSCORE. When a COMMA is the decimal separator, the thousands separator is typically a DOT or SPACE (see examples from Denis Spir). James Knight observed that Indian/Pakistani numbering systems group by hundreds. Ben Finney noted that Chinese group by ten-thousands. Eric Smith pointed-out that these are already handled by the "n" specifier in the locale module (albiet only for integers). Visual Basic and its brethren (like MS Excel) use a completely different style and have ultra-flexible custom format specifiers like: "_($* #,##0_)". Proposal I (from Nick Coghlan) ============================== A comma will be added to the format() specifier mini-language: [[fill]align][sign][#][0][width][,][.precision][type] The ',' option indicates that commas should be included in the output as a thousands separator. As with locales which do not use a period as the decimal point, locales which use a different convention for digit separation will need to use the locale module to obtain appropriate formatting. The proposal works well with floats, ints, and decimals. It also allows easy substitution for other separators. For example:: format(n, "6,f").replace(",", "_") This technique is completely general but it is awkward in the one case where the commas and periods need to be swapped:: format(n, "6,f").replace(",", "X").replace(".", ",").replace("X", ".") Proposal II (to meet Antoine Pitrou's request) ============================================== Make both the thousands separator and decimal separator user specifiable but not locale aware. For simplicity, limit the choices to a comma, period, space, or underscore. [[fill]align][sign][#][0][width][T[tsep]][dsep precision][type] Examples:: format(1234, "8.1f") --> ' 1234.0' format(1234, "8,1f") --> ' 1234,0' format(1234, "8T.,1f") --> ' 1.234,0' format(1234, "8T .f") --> ' 1 234,0' format(1234, "8d") --> ' 1234' format(1234, "8T,d") --> ' 1,234' This proposal meets mosts needs (except for people wanting grouping for hundreds or ten-thousands), but it comes at the expense of being a little more complicated to learn and remember. Also, it makes it more challenging to write custom __format__ methods that follow the format specification mini-language. No change is proposed for the local module. Other Ideas =========== * Lie Ryan suggested a convenience function of the form:: create_format(self, type='i', base=16, seppos=4, sep=':', \ charset='0123456789abcdef', maxwidth=32, \ minwidth=32, pad='0') * Eric Smith would like the C version of the mini-language parser to be exposed. That would make it easier to write custom __format__ methods. Copyright ========= This document has been placed in the public domain. .. Local Variables: mode: indented-text indent-tabs-mode: nil sentence-end-double-space: t fill-column: 70 coding: utf-8 End:

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sure [was: Ext4 data loss]
by Jim Jewett 13 Mar '09

13 Mar '09

[new name instead of "wait" -- but certainty is too long, patience too hard to spell, etc...] >> class file(_file): ... >> def flush(self, sure=0): > super().flush(self) > if sure < 0.25: > return > if sure < 0.5 and os.fdatasync: > os.fdatasync(self.fileno()) > ... Steven D'Aprano asked > Why are you giving the user the illusion of fine control by making the > wait parameter a continuous variable and then using it as if it were a > discrete variable? We don't know how many possible values there will be, or whether they will be affected by environmental settings. Developers will not always know what sort of systems users will have, but they can indicate (with a ratio) where in the range (slow+safe):(fast+risky) they rate this particular flush. Before this discussion, I knew about sync, but had not paid attention even to datasync, let alone fullsync. I have no idea which additional options may be relevant in the future, or on smaller devices or other storage media. I do expect specific intermediate values (such as 0.3) to be interpreted differently on a laptop than on a desktop. -jJ

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Capability to alter issue metadata
by Tennessee Leeuwenburg 13 Mar '09

13 Mar '09

Hi all, I am continuing to look at issues in the issue tracker. It would be handy to be able to update some of the metadata fields. For contributions, it's fine to just be able to upload patches / post messages, but I can see any number of issues which could use a bit of looking after. e.g. http://bugs.python.org/issue4535 should probably be set to "pending feedback" I'd be happy to do this kind of thing if people are happy for me to do so... -T -- -------------------------------------------------- Tennessee Leeuwenburg http://myownhat.blogspot.com/ "Don't believe everything you think"

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[ANN] EuroPython 2009 – Extra Early Bird registration ends this Saturday!
by Martin P. Hellwig 12 Mar '09

12 Mar '09

Newsflash! A large number of Pythoneers has signed up already, for this reason alone it is worth booking! If you already know you are joining the conference, why not save some money in these financially uncertain times and take advantage of the extra early bird rate! The extra early bird rate is just 95 GBP for the conference (70 GBP for the tutorials) and ends this Saturday 14th of March. You can book your conference and hotel all at once. Register at http://www.europython.eu/registration/ . The talks submitted so far promise to be very interesting and practical. We have room for more though, go to http://www.europython.eu/talks/cfp/ for this year's themes, and submissions criteria, the deadline is on 5th April 2009. Sponsors A unique opportunity to affiliate with the prestigious EuroPython conference! http://www.europython.eu/sponsors/ Spread the Word Improve our publicity by distributing this announcement in your corner of the community, coordinating this with the organisers is highly appreciated. http://www.europython.eu/contact/ General Information For more information about the conference, please visit http://www.europython.eu/ . Looking forward to seeing you!

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Building Py3K branch docs with Sphinx
by Tim Golden 12 Mar '09

12 Mar '09

Can I ask which flavour of Sphinx is being used to build the py3k docs? I've taken the naive approach of simply pulling the sources from branches/py3k and then calling make checkout to fetch the appropriate sources, but these are from http://svn.python.org/projects and are the same for 2.x and 3.x (and don't work under 3.x). The latest sphinx from its mercurial tip repo has the same issues so I wondered whether built the released docs used some other svn source or simply patched. The readme points out that the code won't work under Python 3.x but someone's managed to build the docs for the already-released versions. (using the make.bat under Windows, but AFAICT the unix-style Makefile would have the same issues). TJG

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Re: [Python-Dev] Formatting mini-language suggestion
by Guido van Rossum 12 Mar '09

12 Mar '09

On Wed, Mar 11, 2009 at 8:34 PM, Raymond Hettinger <python(a)rcn.com> wrote: >> I expect that nobody likes that idea, > > Do you mean the idea of a thousands separator > or the idea of also parameterizing the decimal point > or both? Sorry, neither. I meant the idea of having to write a PEP. :-) (Added back python-dev to clarify for all.) -- --Guido van Rossum (home page: http://www.python.org/~guido/)

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