Mailman 3 January 2010 - Python-Dev

3.1.2 / 2.6.5 maintenance releases?
by Ned Deily 17 Jan '10

17 Jan '10

I've recently seen a couple of references to 3.1.2 go by in checkins which made me wonder whether dates have been proposed yet for updates to either 3.1 or 2.6. I don't recall seeing any and I didn't see any references in the PEPs. Some advance warning would be nice. I assume that some critical problem could trigger planning for an update on short notice; is there a time-limit trigger as well? -- Ned Deily, nad(a)acm.org

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PYTHON3PATH
by R. David Murray 16 Jan '10

16 Jan '10

Please review issue 2375 [1], which is an enhancement request to add a PYTHON3PATH environment variable. Because we have elected to have both a python and a python3 command, I think this is an issue worth thinking about carefully to make sure we are serving the Python user community and easing the transition to python3. It could be that "use virtualenv" is the best answer, but I feel we should think about it carefully to make sure that is really true. [1] http://bugs.python.org/issue2375 -- R. David Murray www.bitdance.com Business Process Automation - Network/Server Management - Routers/Firewalls

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Summary of Python tracker Issues
by Python tracker 15 Jan '10

15 Jan '10

ACTIVITY SUMMARY (01/08/10 - 01/15/10) 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. 2536 open (+32) / 16993 closed (+16) / 19529 total (+48) Open issues with patches: 1024 Average duration of open issues: 710 days. Median duration of open issues: 469 days. Open Issues Breakdown open 2501 (+32) pending 34 ( +0) Issues Created Or Reopened (53) _______________________________ PYTHON3PATH environment variable to supersede PYTHONPATH for mul 01/13/10 CLOSED http://bugs.python.org/issue2375 reopened r.david.murray Mark the compiler package as deprecated 01/13/10 http://bugs.python.org/issue6837 reopened ezio.melotti test_distutils failure 01/15/10 CLOSED http://bugs.python.org/issue6961 reopened flox buildbot test_urllib: unsetting missing 'env' variable 01/08/10 CLOSED http://bugs.python.org/issue7026 reopened flox Two float('nan') are not equal 01/08/10 CLOSED http://bugs.python.org/issue7660 created jmfauth compiling ctypes fails with non-ascii path 01/08/10 http://bugs.python.org/issue7661 created pitrou patch time.utcoffset() 01/09/10 http://bugs.python.org/issue7662 created techtonik UCS4 build incorrectly translates cases for non-BMP code points 01/10/10 CLOSED http://bugs.python.org/issue7663 created exarkun python logger does not handle IOError Exception 01/10/10 CLOSED http://bugs.python.org/issue7664 created yateenjoshi test_urllib2 and test_ntpath fail if path contains "\" 01/10/10 http://bugs.python.org/issue7665 created flox test_lib2to3 fails if path contains space 01/10/10 CLOSED http://bugs.python.org/issue7666 created flox test_doctest fails with non-ascii path 01/10/10 http://bugs.python.org/issue7667 created flox buildbot test_httpservers fails with non-ascii path 01/10/10 http://bugs.python.org/issue7668 created flox buildbot test_unicode_file fails with non-ascii path 01/10/10 CLOSED http://bugs.python.org/issue7669 created flox _sqlite3: Block *all* operations on a closed Connection object 01/10/10 http://bugs.python.org/issue7670 created haypo patch test_popen fails if path contains special char like ";" 01/11/10 http://bugs.python.org/issue7671 reopened flox patch _ssl module causes segfault 01/10/10 http://bugs.python.org/issue7672 created ssoria patch audioop: check that length is a multiple of the size 01/11/10 http://bugs.python.org/issue7673 created haypo patch select.select() corner cases: duplicate fds, out-of-range fds 01/11/10 http://bugs.python.org/issue7674 created cdleary help() doesn't accept unicode literals in built in docstrings 01/11/10 http://bugs.python.org/issue7675 created psd patch IDLE shell shouldn't use TABs 01/11/10 http://bugs.python.org/issue7676 created cben distutils, better error message for setup.py upload -sign withou 01/11/10 http://bugs.python.org/issue7677 created illume subprocess.Popen pipeline example code in the documentation is l 01/11/10 http://bugs.python.org/issue7678 created steven.k.wong Warning building 2.7 on OS X 10.6 libintl.h "Present But Cannot 01/12/10 http://bugs.python.org/issue7679 created ssteinerX pythonw crash while attempting to start() a thread object 01/12/10 http://bugs.python.org/issue7680 created dontbugme Incorrect division in [wave.py] 01/12/10 CLOSED http://bugs.python.org/issue7681 created alfps patch, needs review Optimisation of if with constant expression 01/12/10 http://bugs.python.org/issue7682 created sdefresne patch Wrong link in HTML documentation 01/12/10 CLOSED http://bugs.python.org/issue7683 created francescor decimal.py: infinity coefficients in tuples 01/12/10 http://bugs.python.org/issue7684 created skrah minor typo in re docs 01/12/10 CLOSED http://bugs.python.org/issue7685 created mikejs patch redundant open modes 'rbb', 'wbb', 'abb' no longer work on Windo 01/13/10 http://bugs.python.org/issue7686 created ivank Bluetooth support untested 01/13/10 http://bugs.python.org/issue7687 created pitrou TypeError: __name__ must be set to a string object 01/13/10 http://bugs.python.org/issue7688 created frankmillman Pickling of classes with a metaclass and copy_reg 01/13/10 http://bugs.python.org/issue7689 created craigcitro patch Wrong PEP number in importlib module manual page 01/13/10 CLOSED http://bugs.python.org/issue7690 created francescor test_bsddb3 files are not always removed when test fails 01/13/10 CLOSED http://bugs.python.org/issue7691 created flox buildbot Pointless comparision of unsigned integer with zero 01/13/10 CLOSED http://bugs.python.org/issue7692 created Bugger tarfile.extractall can't have unicode extraction path 01/13/10 http://bugs.python.org/issue7693 created pbienst DeprecationWarning from distuils.commands.build_ext needs stackl 01/13/10 http://bugs.python.org/issue7694 created tseaver patch missing termios constants 01/13/10 http://bugs.python.org/issue7695 created conorh Improve Memoryview/Buffer documentation 01/13/10 http://bugs.python.org/issue7696 created flox os.getcwd() should raise UnicodeDecodeError for arbitrary bytes 01/13/10 CLOSED http://bugs.python.org/issue7697 created flox pystack macro in Misc/gdbinit incorrectly uses PyEval_EvalFrame 01/14/10 CLOSED http://bugs.python.org/issue7698 created exarkun patch strptime, strftime documentation 01/14/10 http://bugs.python.org/issue7699 created mikejs patch "-3" flag does not work anymore 01/14/10 CLOSED http://bugs.python.org/issue7700 created flox patch fix output string length for binascii.b2a_uu() 01/14/10 CLOSED http://bugs.python.org/issue7701 created haypo patch Wrong order of parameters of _get_socket in SMTP class in smtpli 01/14/10 http://bugs.python.org/issue7702 created alito Replace buffer()-->memoryview() in Lib/ctypes/test/ 01/14/10 http://bugs.python.org/issue7703 created flox patch Math calculation problem (1.6-1.0)>0.6, python said TRUE 01/14/10 CLOSED http://bugs.python.org/issue7704 created DhaReaL libpython2.6.so is not linked correctly on FreeBSD when threads 01/15/10 http://bugs.python.org/issue7705 created aballier patch, needs review Missing #include guards 01/15/10 http://bugs.python.org/issue7706 created akrpic77 patch multiprocess.Queue operations during import can lead to deadlock 01/15/10 http://bugs.python.org/issue7707 created kripken Conversion of longs to bytes and vice-versa. 01/11/10 http://bugs.python.org/issue1023290 reopened mark.dickinson patch Issues Now Closed (67) ______________________ segfault in curses when calling redrawwin() before refresh() 825 days http://bugs.python.org/issue1266 mark.dickinson "RuntimeError: dictionary changed size during iteration" in Tkin 751 days http://bugs.python.org/issue1658 flox patch Exception exceptions.AttributeError '_shutdown' in <module 'thre 718 days http://bugs.python.org/issue1947 nadiasvertex Backport dictviews to 2.7 713 days http://bugs.python.org/issue1967 alexandre.vassalotti patch, needs review Backport set and dict comprehensions 665 days http://bugs.python.org/issue2333 alexandre.vassalotti patch, 26backport Backport set literals 663 days http://bugs.python.org/issue2335 alexandre.vassalotti patch, 26backport PYTHON3PATH environment variable to supersede PYTHONPATH for mul 1 days http://bugs.python.org/issue2375 lemburg Extension module build fails for MinGW: missing vcvarsall.bat 625 days http://bugs.python.org/issue2698 cmcqueen1975 arg 2 of PyErr_SetFromErrnoWithFilename should be const 619 days http://bugs.python.org/issue2758 brian.curtin Trunk build issues in DragonFly BSD 613 days http://bugs.python.org/issue2797 brian.curtin patch, needs review Gzip cannot handle zero-padded output + patch 610 days http://bugs.python.org/issue2846 pitrou patch, needs review block operation on closed socket/pipe for multiprocessing 552 days http://bugs.python.org/issue3311 haypo patch, needs review Add gamma function, error functions and other C99 math.h functio 543 days http://bugs.python.org/issue3366 mark.dickinson patch, needs review Macros for PyLong: sign, number of digits, fits in an int 425 days http://bugs.python.org/issue4294 mark.dickinson patch reject unicode in zlib 379 days http://bugs.python.org/issue4757 haypo patch Distutils inappropriately reuses .o files between extension modu 320 days http://bugs.python.org/issue5372 tarek patch, patch, needs review Problem with email.MIME* library, using wrong new line 298 days http://bugs.python.org/issue5525 r.david.murray os.path.normpath doesn't preserve unicode 263 days http://bugs.python.org/issue5827 ezio.melotti patch smtplib exception smtp.connect TypeError encode_plain 173 days http://bugs.python.org/issue6523 r.david.murray email.parser clips trailing \n of multipart/mixed part if part e 152 days http://bugs.python.org/issue6681 r.david.murray patch Optimize PyBytes_FromObject. 151 days http://bugs.python.org/issue6688 alexandre.vassalotti patch in xmlrpclib.py: NameError: global name 'HTTPSConnection' is not 143 days http://bugs.python.org/issue6769 krisvale UnicodeDecodeError when retrieving binary data from cgi.FieldSto 126 days http://bugs.python.org/issue6854 r.david.murray test_distutils failure 0 days http://bugs.python.org/issue6961 flox buildbot tmpnam should not be used if tempfile or mkstemp are available 110 days http://bugs.python.org/issue6965 flox test_urllib: unsetting missing 'env' variable 0 days http://bugs.python.org/issue7026 orsenthil distutils and IronPython compatibility 73 days http://bugs.python.org/issue7071 tarek 26backport weak dict iterators are fragile because of unpredictable GC runs 89 days http://bugs.python.org/issue7105 pitrou patch email: msg.items() returns different values before and after ms 89 days http://bugs.python.org/issue7119 r.david.murray patch get_payload(decode=True) eats last newline 87 days http://bugs.python.org/issue7143 r.david.murray bytes.__getnewargs__ is broken; copy.copy() therefore doesn't wo 49 days http://bugs.python.org/issue7382 alexandre.vassalotti patch, easy Document inspect.get(full)argspec limitation to Python function 39 days http://bugs.python.org/issue7422 georg.brandl Py3.1: Fatal Python Error: Py_Initialize...unknown encoding: chc 35 days http://bugs.python.org/issue7441 georg.brandl when piping output between subprocesses some fd is left open blo 36 days http://bugs.python.org/issue7448 flox Solaris SPARC: _multiprocessing.so: symbol sem_timedwait: refere 35 days http://bugs.python.org/issue7454 srid cPickle: stack underflow in load_pop() 33 days http://bugs.python.org/issue7455 haypo patch crash in str.rfind() with an invalid start value 33 days http://bugs.python.org/issue7458 haypo patch test_multiprocessing test_rapid_restart fails if port 9999 alrea 27 days http://bugs.python.org/issue7498 r.david.murray patch, buildbot Extended slicing with classic class behaves strangely 3 days http://bugs.python.org/issue7532 mark.dickinson patch stringlib fastsearch could be improved on 64-bit builds 13 days http://bugs.python.org/issue7607 pitrou distutils.unixccompiler.UnixCCompiler.runtime_library_dir_option 7 days http://bugs.python.org/issue7617 tarek patch [patch] improve unicode methods: split() rsplit() and replace() 10 days http://bugs.python.org/issue7622 pitrou patch bytearray needs more tests for "b.some_method()[0] is not b" 10 days http://bugs.python.org/issue7625 pitrou patch test_urllib2 fails on Windows if not run from C: 4 days http://bugs.python.org/issue7648 orsenthil easy [patch] Enable additional bytes and memoryview tests. 5 days http://bugs.python.org/issue7654 pitrou patch test_ctypes failure on AIX 5.3 4 days http://bugs.python.org/issue7657 mallayya patch Two float('nan') are not equal 0 days http://bugs.python.org/issue7660 mark.dickinson UCS4 build incorrectly translates cases for non-BMP code points 1 days http://bugs.python.org/issue7663 lemburg python logger does not handle IOError Exception 1 days http://bugs.python.org/issue7664 vinay.sajip test_lib2to3 fails if path contains space 0 days http://bugs.python.org/issue7666 benjamin.peterson test_unicode_file fails with non-ascii path 2 days http://bugs.python.org/issue7669 ezio.melotti Incorrect division in [wave.py] 1 days http://bugs.python.org/issue7681 benjamin.peterson patch, needs review Wrong link in HTML documentation 0 days http://bugs.python.org/issue7683 ezio.melotti minor typo in re docs 0 days http://bugs.python.org/issue7685 ezio.melotti patch Wrong PEP number in importlib module manual page 0 days http://bugs.python.org/issue7690 brett.cannon test_bsddb3 files are not always removed when test fails 2 days http://bugs.python.org/issue7691 flox buildbot Pointless comparision of unsigned integer with zero 0 days http://bugs.python.org/issue7692 mark.dickinson os.getcwd() should raise UnicodeDecodeError for arbitrary bytes 0 days http://bugs.python.org/issue7697 pjenvey pystack macro in Misc/gdbinit incorrectly uses PyEval_EvalFrame 0 days http://bugs.python.org/issue7698 skip.montanaro patch "-3" flag does not work anymore 1 days http://bugs.python.org/issue7700 brett.cannon patch fix output string length for binascii.b2a_uu() 1 days http://bugs.python.org/issue7701 pitrou patch Math calculation problem (1.6-1.0)>0.6, python said TRUE 0 days http://bugs.python.org/issue7704 tim_one Support for sending multipart form data 2452 days http://bugs.python.org/issue727898 r.david.murray email.MIME*.as_string removes duplicate spaces 1440 days http://bugs.python.org/issue1422094 r.david.murray easy test_parsedate_acceptable_to_time_functions+DST == :-( 1394 days http://bugs.python.org/issue1454285 r.david.murray email module does not complay with RFC 2046: CRLF issue 1196 days http://bugs.python.org/issue1571841 r.david.murray email.FeedParser.BufferedSubFile improperly handles "\r\n" 969 days http://bugs.python.org/issue1721862 r.david.murray patch, easy Top Issues Most Discussed (10) ______________________________ 20 dtoa.c: oversize b in quorem 11 days open http://bugs.python.org/issue7632 18 _ssl module causes segfault 5 days open http://bugs.python.org/issue7672 12 Speed up cPickle's pickling generally 287 days open http://bugs.python.org/issue5683 8 OS X pythonw.c compile error with 10.4 or earlier deployment ta 7 days open http://bugs.python.org/issue7658 8 Fatal error on thread creation in low memory condition 27 days open http://bugs.python.org/issue7544 8 Direct calls to PyObject_Del/PyObject_DEL are broken for --with 558 days open http://bugs.python.org/issue3299 7 "-3" flag does not work anymore 1 days closed http://bugs.python.org/issue7700 7 tarfile.extractall can't have unicode extraction path 2 days open http://bugs.python.org/issue7693 7 test_urllib: unsetting missing 'env' variable 0 days closed http://bugs.python.org/issue7026 7 os.path.abspath with unicode argument should call os.getcwdu 542 days open http://bugs.python.org/issue3426

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[ANN] Python 2.5.5 Release Candidate 1.
by "Martin v. Löwis" 14 Jan '10

14 Jan '10

On behalf of the Python development team and the Python community, I'm happy to announce the release candidate 1 of Python 2.5.5. This is a source-only release that only includes security fixes. The last full bug-fix release of Python 2.5 was Python 2.5.4. Users are encouraged to upgrade to the latest release of Python 2.6 (which is 2.6.4 at this point). This releases fixes issues with the logging and tarfile modules, and with thread-local variables. See the detailed release notes at the website (also available as Misc/NEWS in the source distribution) for details of bugs fixed. For more information on Python 2.5.5, including download links for various platforms, release notes, and known issues, please see: http://www.python.org/2.5.5 Highlights of the previous major Python releases are available from the Python 2.5 page, at http://www.python.org/2.5/highlights.html Enjoy this release, Martin Martin v. Loewis martin(a)v.loewis.de Python Release Manager (on behalf of the entire python-dev team)

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PEP 391 - Please Vote!
by Vinay Sajip 14 Jan '10

14 Jan '10

In October 2009 I created PEP 391 to propose a new method of configuring logging using dictionaries: http://www.python.org/dev/peps/pep-0391/ In November 2009 I posted to this list that the PEP was ready for review. I have had numerous helpful comments from some of you, and I have incorporated most of them into updates to the PEP. Though I have the feeling from community discussions that the PEP has been generally favourably received - well I would think that, wouldn't I? ;-) - I've not asked for a vote and so I don't know the state of community consensus regarding this PEP. So, can you please indicate your vote for or against incorporating PEP 391 into Python? It would be nice if I could incorporate the changes before 2.7a3 is released! Ideally, I would like to check in the changes unless there are objections to doing so. All those who think that logging is currently hard to configure will benefit from these changes, so here's the opportunity to pipe up and improve things. Thanks & regards, Vinay Sajip

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static (Modules/Setup) builds?
by skip＠pobox.com 13 Jan '10

13 Jan '10

Just out of curiosity, is the static build stuff (use the old Modules/Setup file to build modules) exercised at all any more? Skip

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Fwd: Download Page - AMD64
by Michael Foord 13 Jan '10

13 Jan '10

I presume the email below is about the Windows binary. Does the AMD64 release work on intel 64bit and can we make the wording clearer on the download page? The current description is " Windows AMD64 binary". All the best, Michael -------- Original Message -------- Subject: Download Page - AMD64 Date: Fri, 11 Dec 2009 04:03:16 -0600 From: Thomas Brownback <thomas.brownback(a)gmail.com> To: webmaster(a)python.org Should I use the AMD64 version of Python on an Intel 64 chip? I know those 64-bit implementations are very similar, but are they similar enough that your AMD64 will work on Intel? If so, perhaps a note should be placed on that page to help avoid confusion. Explicit being better than implicit and all. Thanks for your time, Thomas -- http://www.ironpythoninaction.com/ http://www.voidspace.org.uk/blog READ CAREFULLY. By accepting and reading this email you agree, on behalf of your employer, to release me from all obligations and waivers arising from any and all NON-NEGOTIATED agreements, licenses, terms-of-service, shrinkwrap, clickwrap, browsewrap, confidentiality, non-disclosure, non-compete and acceptable use policies ("BOGUS AGREEMENTS") that I have entered into with your employer, its partners, licensors, agents and assigns, in perpetuity, without prejudice to my ongoing rights and privileges. You further represent that you have the authority to release me from any BOGUS AGREEMENTS on behalf of your employer.

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[RELEASED] Python 2.7 alpha 2
by Benjamin Peterson 13 Jan '10

13 Jan '10

On behalf of the Python development team, I'm gleeful to announce the second alpha release of Python 2.7. Python 2.7 is scheduled to be the last major version in the 2.x series. It includes many features that were first released in Python 3.1. The faster io module, the new nested with statement syntax, improved float repr, and the memoryview object have been backported from 3.1. Other features include an ordered dictionary implementation, unittests improvements, and support for ttk Tile in Tkinter. For a more extensive list of changes in 2.7, see http://doc.python.org/dev/whatsnew/2.7.html or Misc/NEWS in the Python distribution. To download Python 2.7 visit: http://www.python.org/download/releases/2.7/ Please note that this is a development release, intended as a preview of new features for the community, and is thus not suitable for production use. The 2.7 documentation can be found at: http://docs.python.org/2.7 Please consider trying Python 2.7 with your code and reporting any bugs you may notice to: http://bugs.python.org Have fun! -- Benjamin Peterson 2.7 Release Manager benjamin at python.org (on behalf of the entire python-dev team and 2.7's contributors)

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topics I plan to discuss at the language summit
by Brett Cannon 13 Jan '10

13 Jan '10

Michael has given me the hg transition/stdlib time slot at the language summit this year. In regards to that I plan to lead a discussion on: * where we are at w/ the Hg transition (Dirkjan should be there and I did a blog post on this topic recently: http://sayspy.blogspot.com/2010/01/where-hg-transition-stands.html) * argparse (PEP 389) * brief mention on still wanting to break out the stdlib from CPython * an official policy on extension modules? (i.e. must have a pure Python implementation which can mean a ctypes implementation unless given an explicit waiver) That's everything from a stdlib perspective. I have half-baked ideas, but nothing concrete enough to bring up unless people really want to discuss stuff like how to potentially standardize module deprecation warnings, etc. In terms of me personally, I do plan to bring up at some point during the summit these points which don't squarely fit during my time slot: * an official unofficial policy on how new proposed features should come to us (i.e. working code to python-ideas with a shell of a PEP that includes abstract and motivation -> hashed out PEP to python-dev -> pronouncement) * any changes needed to the issue tracker to help with the workflow? (stage field seems like a failed experiment and we now have several effective triage people who can help w/ guiding changes) If there is something missing from the stdlib discussion that you think should be brought up at the summit let me know. And if there is something here you want to discuss before the summit let me know and I can start a separate thread on it. -Brett

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regex module
by MRAB 13 Jan '10

13 Jan '10

Hi all, I'm back on the regex module after doing other things and I'd like your opinion on a number of matters: Firstly, the current re module has a bug whereby it doesn't split on zero-width matches. The BDFL has said that this behaviour should be retained by default in case any existing software depends on it. My question is: should my regex module still do this for Python 3? Speaking personally, I'd like it to behave correctly, and Python 3 is the version where backwards-compatibility is allowed to be broken. Secondly, Python 2 is reaching the end of the line and Python 3 is the future. Should I still release a version that works with Python 2? I'm thinking that it could be confusing if new regex module did zero-width splits correctly in Python 3 but not in Python 2. And also, should I release it only for Python 3 as a 'carrot'? Finally, the module allows some extra backslash escapes, eg \g<name>, in the pattern. Should it treat ill-formed escapes, eg \g, as it would have treated them in the re module? Thanks

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