Mailman 3 July 2010 - Python-Dev

issue 9141
by Kristján Valur Jónsson 04 Jul '10

04 Jul '10

Dear colleagues: I'd like to have your input on http://bugs.python.org/issue9141 "Allow objects to decide if they can be collected by GC." This generalizes the dynamic discovery of finalization state of objects, as already provided for generator objects with PyGen_NeedsFinalizing(),to any object. Kristján

1 0

distutils2 checking mails
by Tarek Ziadé 04 Jul '10

04 Jul '10

Hi all ! I am sorry about the flood of mails in checkins this morning. It was annoying. It seems to me that this is a general problem that will appear in CPython too once it's in mercurial. I think this can be easily fixed by a patch policy. I have just sent a mail to python-ideas about this, to propose something. Regards Tarek -- Tarek Ziadé | http://ziade.org

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Are you ready for Mercurial migration?
by anatoly techtonik 03 Jul '10

03 Jul '10

To shed some light on the readiness of Python community for the switch I've opened public Google Wave. Please add your opinion if you can and send this link to other contributors you may know: https://wave.google.com/wave/waveref/googlewave.com/w+G12NYQbDA -- anatoly t.

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Summary of Python tracker Issues
by Python tracker 02 Jul '10

02 Jul '10

ACTIVITY SUMMARY (2010-06-25 - 2010-07-02) 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. 2796 open (+44) / 18167 closed (+20) / 20963 total (+64) Open issues with patches: 1126 Average duration of open issues: 709 days. Median duration of open issues: 504 days. Open Issues Breakdown open 2763 (+44) languishing 14 ( +0) pending 18 ( +0) Issues Created Or Reopened (70) _______________________________ assumption about unsigned long byte size in struct module usag 2010-06-25 CLOSED http://bugs.python.org/issue1789 reopened mark.dickinson patch, easy optparse doesn’t disallow adding one-dash long options (“- 2010-06-26 http://bugs.python.org/issue4640 reopened haypo mimetypes.guess_extension result changes after mimetypes.init( 2010-06-26 http://bugs.python.org/issue4963 reopened r.david.murray patch, easy PyDateTime_IMPORT macro incorrectly marked up 2010-06-26 CLOSED http://bugs.python.org/issue9024 reopened belopolsky patch test_sysconfig failure 2010-06-25 CLOSED http://bugs.python.org/issue9081 created michael.foord warnings.filterwarnings doesn't work with -O 2010-06-25 http://bugs.python.org/issue9082 created michael.foord At least some Tools utilities are still Python 2 2010-06-25 http://bugs.python.org/issue9083 created holdenweb vimrc: use matchall() instead of ":match" to allow multiple ma 2010-06-26 http://bugs.python.org/issue9084 created blueyed patch, needs review Version number inconsistency in email package 2010-06-28 http://bugs.python.org/issue9085 reopened r.david.murray Wrong linking terminology in windows FAQ 2010-06-26 http://bugs.python.org/issue9086 created john.miller json docstrings on 3.x still use 'unicode' and 'str' 2010-06-26 http://bugs.python.org/issue9087 created ezio.melotti revert distutils to its 3.1 state 2010-06-26 http://bugs.python.org/issue9088 created tarek PyNumber_Int is still mentioned in number protocol docs 2010-06-27 CLOSED http://bugs.python.org/issue9089 created belopolsky Error code 10035 calling socket.recv() on a socket with a time 2010-06-27 http://bugs.python.org/issue9090 created ehohenstein patch str.capitalize() should not lower the rest of the string 2010-06-27 CLOSED http://bugs.python.org/issue9091 created eka static behavior of local variables 2010-06-27 CLOSED http://bugs.python.org/issue9092 created Aslanidi Tools/README is out of date 2010-06-27 http://bugs.python.org/issue9093 created belopolsky Make python-m pickletools do something useful 2010-06-27 http://bugs.python.org/issue9094 created belopolsky patch, easy patchcheck should handle extraneous whitespace in .rst files 2010-06-27 http://bugs.python.org/issue9095 created brett.cannon easy importlib doesn't handle valid marshalled data with invalid se 2010-06-28 http://bugs.python.org/issue9096 created benjamin.peterson os.chdir(path) to return current dir 2010-06-28 CLOSED http://bugs.python.org/issue9097 created techtonik MSYS build fails with `S_IXGRP' undeclared 2010-06-28 http://bugs.python.org/issue9098 created Martin.Ellison multiprocessing/win32: WindowsError: [Error 0] Success on Pipe 2010-06-28 http://bugs.python.org/issue9099 created honeyman test_sysconfig fails (test_user_similar) 2010-06-28 http://bugs.python.org/issue9100 created csernazs reference json format in file formats chapter 2010-06-28 http://bugs.python.org/issue9101 created techtonik pybench: Cannot compare 2.x and 3.x benchmarks 2010-06-28 http://bugs.python.org/issue9102 created belopolsky API keyword 2010-06-28 CLOSED http://bugs.python.org/issue9103 created techtonik test_exceptions does not test pickling with pickle.py 2010-06-28 http://bugs.python.org/issue9104 created belopolsky patch pickle security note should be more prominent 2010-06-28 http://bugs.python.org/issue9105 created techtonik easy remove numbers from 3-.. level entries in docs toc 2010-06-28 CLOSED http://bugs.python.org/issue9106 created techtonik PyModule_Create not working properly 2010-06-28 CLOSED http://bugs.python.org/issue9107 created Krauzi list object variable assign with multiplication sign 2010-06-28 CLOSED http://bugs.python.org/issue9108 created muzuiget absolute import cleanups for Python 3 2010-06-28 http://bugs.python.org/issue9109 created nas contextlib.ContextDecorator 2010-06-28 CLOSED http://bugs.python.org/issue9110 created michael.foord patch cmd.do_help documentation should mention docstrings 2010-06-29 http://bugs.python.org/issue9111 created tebeka argparse missing documentation for error() method 2010-06-29 http://bugs.python.org/issue9112 created mark Tools/msi still uses string exceptions 2010-06-29 CLOSED http://bugs.python.org/issue9113 created doko br"" string literals don't appear to be documented 2010-06-29 CLOSED http://bugs.python.org/issue9114 created mark test_site: support for systems without unsetenv 2010-06-29 http://bugs.python.org/issue9115 created csernazs patch test_capi.test_no_FatalError_infinite_loop crash on Windows 2010-06-29 http://bugs.python.org/issue9116 created brian.curtin class syntax not fully documented in reference manual 2010-06-29 http://bugs.python.org/issue9117 created mark.dickinson patch help() on a property descriptor launches interactive help 2010-06-29 http://bugs.python.org/issue9118 created jackdied patch Python download page needs to mention crypto code in Windows i 2010-06-29 http://bugs.python.org/issue9119 created lemburg Reduce pickle size for an empty set 2010-06-29 http://bugs.python.org/issue9120 created belopolsky patch Glossary entry for nested scope incorrect 2010-06-29 CLOSED http://bugs.python.org/issue9121 created stoneleaf Problems with multiprocessing, Python embedding and Windows 2010-06-29 http://bugs.python.org/issue9122 created honeyman insecure os.urandom on VMS 2010-06-30 http://bugs.python.org/issue9123 created zooko Mailbox module demonstrates infeasibly slow performance 2010-06-30 http://bugs.python.org/issue9124 created holdenweb parser module doesn't like except-as syntax. 2010-06-30 CLOSED http://bugs.python.org/issue9125 created mark.dickinson patch errors='replace' does not work at Windows command line 2010-06-30 CLOSED http://bugs.python.org/issue9126 created jvanpraag subprocess.Popen.communicate() and SIGCHLD handlers 2010-06-30 http://bugs.python.org/issue9127 created zarkdav Parser module fails to validate class decorators correctly. 2010-06-30 http://bugs.python.org/issue9128 created mark.dickinson patch DoS smtpd module vulnerability 2010-06-30 http://bugs.python.org/issue9129 created giampaolo.rodola Parser module fails on short relative imports 2010-06-30 http://bugs.python.org/issue9130 created mark.dickinson patch test_set_reprs in test_pprint is fragile 2010-06-30 http://bugs.python.org/issue9131 created stutzbach Documentation for comparing dictionaries is out of date 2010-06-30 http://bugs.python.org/issue9132 created stutzbach easy Invalid UTF8 Byte sequence not raising exception/being substit 2010-06-30 CLOSED http://bugs.python.org/issue9133 created Mike.Lewis sre bug: lastmark_save/restore 2010-06-30 http://bugs.python.org/issue9134 created arigo XMLRPC documentation binary file example does not execute. 2010-06-30 CLOSED http://bugs.python.org/issue9135 created Delaney.Gillilan RuntimeError when profiling Decimal 2010-06-30 http://bugs.python.org/issue9136 created ubershmekel patch x.update(red=5, blue=6, other=7) doesn't work, where x is a Mu 2010-07-01 http://bugs.python.org/issue9137 created stutzbach patch Tutorial: classes intro paragraph icky 2010-07-01 http://bugs.python.org/issue9138 created aahz Add examples for str.format() 2010-07-02 http://bugs.python.org/issue9139 created ezio.melotti patch SocketServer.BaseRequestHandler not a new-style class? 2010-07-02 CLOSED http://bugs.python.org/issue9140 created phf Allow objects to decide if they can be collected by GC 2010-07-02 http://bugs.python.org/issue9141 created krisvale patch, patch, needs review while executing python 2010-07-02 CLOSED http://bugs.python.org/issue9142 created rajesh.chandran test_ctypes: fails on sparc64 long double 2010-07-02 CLOSED http://bugs.python.org/issue9143 created jengelh Import error for multiprocessing in 2.7rc2 on Windows 2010-07-02 http://bugs.python.org/issue9144 created ot tracebacks eat up memory by holding references to locals and g 2010-06-25 http://bugs.python.org/issue1565525 reopened ghazel recursive urlparse 2010-06-30 CLOSED http://bugs.python.org/issue1643370 reopened techtonik easy Issues Now Closed (74) ______________________ pickle's documentation is severely outdated 940 days http://bugs.python.org/issue1536 alexandre.vassalotti assumption about unsigned long byte size in struct module usag 4 days http://bugs.python.org/issue1789 mark.dickinson patch, easy Backport: Mixing default keyword arguments with *args 886 days http://bugs.python.org/issue1909 ezio.melotti ctypes.util fails to find libc in some environments 709 days http://bugs.python.org/issue3383 tjreedy patch cPickle to pickle conversion in py3k missing methods 712 days http://bugs.python.org/issue3385 alexandre.vassalotti patch httplib.HTTPMessage undocumented 707 days http://bugs.python.org/issue3428 orsenthil easy ssl.wrap_socket() is incompatible with servers that drop privi 658 days http://bugs.python.org/issue3823 pitrou 3.0rc2.msi Install Fails (Error Code 2755) 592 days http://bugs.python.org/issue4299 mark.dickinson Add a warnings.showwarning replacement for logging 586 days http://bugs.python.org/issue4384 merwok easy SequenceMatcher bug with long sequences 562 days http://bugs.python.org/issue4622 tjreedy 2.6.1 build issues on solaris with SunStudio 12 530 days http://bugs.python.org/issue4919 benjamin.peterson Duplicate UTF-16 BOM if a file is open in append mode 527 days http://bugs.python.org/issue5006 Conrad.Irwin patch [reopening] native build of python win32 using msys under both 520 days http://bugs.python.org/issue5026 tjreedy RFC: improve distutils bdist_rpm so it builds pure python modu 471 days http://bugs.python.org/issue5482 tjreedy patch os.getpwent returns unsigned 32bit value, os.setuid refuses it 297 days http://bugs.python.org/issue5705 ezio.melotti patch [Distutils][PATCH] Add bdist_rpm option to select the name of 339 days http://bugs.python.org/issue6546 tjreedy patch smtpd.SMTPServer can cause asyncore.loop to enter infinite eve 338 days http://bugs.python.org/issue6589 giampaolo.rodola patch deepcopy erroneously doesn't call __setstate__ if __getstate__ 300 days http://bugs.python.org/issue6827 r.david.murray easy Silence DeprecationWarning by default 63 days http://bugs.python.org/issue7319 benjamin.peterson patch setup.py ignores SDK root on OSX 161 days http://bugs.python.org/issue7724 ronaldoussoren patch, needs review Piped parent's multiprocessing.Process children cannot write t 118 days http://bugs.python.org/issue8056 Vojtech.Fried pep-0370 on osx duplicates existing functionality 50 days http://bugs.python.org/issue8084 ronaldoussoren patch, needs review, buildbot buildbot: DeprecationWarning not raised for icglue (test_py3kw 70 days http://bugs.python.org/issue8446 ronaldoussoren patch, buildbot buildbot: test_urllib2_localnet failures (Connection refused) 69 days http://bugs.python.org/issue8455 ronaldoussoren patch, buildbot test_distutils fails if srcdir != builddir 12 days http://bugs.python.org/issue8577 ronaldoussoren patch uuid.uuid4() generates non-unique values on OSX 6 days http://bugs.python.org/issue8621 ronaldoussoren patch urlparse.urlparse/urlsplit doc missing 52 days http://bugs.python.org/issue8653 orsenthil Link to PEP 3147 from importlib docs 50 days http://bugs.python.org/issue8667 brett.cannon patch, easy, needs review Proxy exception lookup fails on MacOS in urllib. 24 days http://bugs.python.org/issue8883 ronaldoussoren patch email.encoders.encode_base64 sets payload to bytes, should set 22 days http://bugs.python.org/issue8896 merwok patch Provide as_integer_ratio() method to Decimal 21 days http://bugs.python.org/issue8947 mark.dickinson patch PyDateTime_IMPORT macro incorrectly marked up 1 days http://bugs.python.org/issue9024 belopolsky patch add test_support.run_unittest command line options and argumen 9 days http://bugs.python.org/issue9027 georg.brandl errors='replace' works in IDLE, fails at Windows command line. 12 days http://bugs.python.org/issue9029 benjamin.peterson using MIMEApplication to attach a PDF raises a TypeError excep 5 days http://bugs.python.org/issue9040 r.david.murray 2to3 doesn't handle byte comparison well 4 days http://bugs.python.org/issue9043 tjreedy [optparse] confusion over an option and its value without any 6 days http://bugs.python.org/issue9044 georg.brandl Python 2.7rc2 doesn't build on Mac OS X 10.4 6 days http://bugs.python.org/issue9046 ronaldoussoren Backwards compatibility 4 days http://bugs.python.org/issue9059 georg.brandl pdb enhancement up/down traversals 4 days http://bugs.python.org/issue9064 georg.brandl patch test_float failure on Solaris 3 days http://bugs.python.org/issue9069 mark.dickinson TarFile doesn't support member files with a leading "./" 5 days http://bugs.python.org/issue9071 niemeyer ssl module sets "debug" flag on SSL struct 5 days http://bugs.python.org/issue9075 srid argparse does not handle arguments correctly after -- 4 days http://bugs.python.org/issue9077 georg.brandl Fix C API documentation of unicode 2 days http://bugs.python.org/issue9078 georg.brandl patch test_sysconfig failure 0 days http://bugs.python.org/issue9081 pitrou PyNumber_Int is still mentioned in number protocol docs 1 days http://bugs.python.org/issue9089 mark.dickinson str.capitalize() should not lower the rest of the string 0 days http://bugs.python.org/issue9091 orsenthil static behavior of local variables 0 days http://bugs.python.org/issue9092 mark.dickinson os.chdir(path) to return current dir 2 days http://bugs.python.org/issue9097 techtonik API keyword 1 days http://bugs.python.org/issue9103 merwok remove numbers from 3-.. level entries in docs toc 1 days http://bugs.python.org/issue9106 techtonik PyModule_Create not working properly 0 days http://bugs.python.org/issue9107 amaury.forgeotdarc list object variable assign with multiplication sign 0 days http://bugs.python.org/issue9108 ezio.melotti contextlib.ContextDecorator 2 days http://bugs.python.org/issue9110 michael.foord patch Tools/msi still uses string exceptions 0 days http://bugs.python.org/issue9113 loewis br"" string literals don't appear to be documented 0 days http://bugs.python.org/issue9114 merwok Glossary entry for nested scope incorrect 0 days http://bugs.python.org/issue9121 benjamin.peterson parser module doesn't like except-as syntax. 0 days http://bugs.python.org/issue9125 mark.dickinson patch errors='replace' does not work at Windows command line 1 days http://bugs.python.org/issue9126 r.david.murray Invalid UTF8 Byte sequence not raising exception/being substit 0 days http://bugs.python.org/issue9133 ezio.melotti XMLRPC documentation binary file example does not execute. 0 days http://bugs.python.org/issue9135 ezio.melotti SocketServer.BaseRequestHandler not a new-style class? 0 days http://bugs.python.org/issue9140 phf while executing python 0 days http://bugs.python.org/issue9142 mark.dickinson test_ctypes: fails on sparc64 long double 0 days http://bugs.python.org/issue9143 mark.dickinson cPickle not always same as pickle 2749 days http://bugs.python.org/issue655802 alexandre.vassalotti Generate rpm filelist including directories 2567 days http://bugs.python.org/issue755286 tjreedy patch bdist_rpm failure when no setup.py 2439 days http://bugs.python.org/issue828743 tjreedy Specify a source baseurl for bdist_rpm. 2111 days http://bugs.python.org/issue1028432 tjreedy patch Add New RPM-friendly record option to setup.py 2098 days http://bugs.python.org/issue1035576 tjreedy patch difflib.SequenceMatcher.find_longest_match() wrong result 1432 days http://bugs.python.org/issue1528074 tjreedy Py3k: Fix pybench so it runs 1262 days http://bugs.python.org/issue1634499 merwok patch recursive urlparse 2 days http://bugs.python.org/issue1643370 r.david.murray easy New byte packing format for the struct module 1088 days http://bugs.python.org/issue1749662 mark.dickinson patch Top Issues Most Discussed (10) ______________________________ 25 RuntimeError when profiling Decimal 2 days open http://bugs.python.org/issue9136 22 test_float failure on Solaris 3 days closed http://bugs.python.org/issue9069 17 3.1 cannot unpickle 2.7-created pickle 510 days open http://bugs.python.org/issue5180 16 Add pure Python implementation of datetime module to CPython 130 days open http://bugs.python.org/issue7989 12 test_exceptions does not test pickling with pickle.py 4 days open http://bugs.python.org/issue9104 11 Reduce pickle size for an empty set 3 days open http://bugs.python.org/issue9120 11 tracebacks eat up memory by holding references to locals and gl 7 days open http://bugs.python.org/issue1565525 9 remove numbers from 3-.. level entries in docs toc 1 days closed http://bugs.python.org/issue9106 9 mimetypes.guess_extension result changes after mimetypes.init() 6 days open http://bugs.python.org/issue4963 8 Instance methods are misreporting the number of arguments 824 days open http://bugs.python.org/issue2516

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How are the bdist_wininst binaries built ?
by David Cournapeau 01 Jul '10

01 Jul '10

Hi, I would like to modify the code of the bdist installers, but I don't see any VS project for VS 9.0. How are the wininst-9.0*exe built ? thanks, David

2 4

Taking over the Mercurial Migration
by "Martin v. Löwis" 01 Jul '10

01 Jul '10

It seems that both Dirkjan and Brett are very caught up with real life for the coming months. So I suggest that some other committer who favors the Mercurial transition steps forward and takes over this project. If nobody volunteers, I propose that we release 3.2 from Subversion, and reconsider Mercurial migration next year. Regards, Martin

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Regarding socket timeouts in httplib
by Anders Sandvig 01 Jul '10

01 Jul '10

Consider the following code for retreieving a web page using httplib: def get_url(hostname, port, url, timeout=5): con = httplib.HTTPConnection(hostname, port, timeout) con.request("GET", url) res = con.getresponse() data = res.read() return res, data As expected, this will raise a socket.error if the client is unable to connect before the timeout has expired. However, once the connection has been made, the timeout parameter no longer has any effect and con.getresponse() will block forever if the server does not send any data. I think the reason for this is that the socket object created in HTTPConnection.connect() has a default timeout of 0 (i.e. it is never set explicitly): def connect(self): """Connect to the host and port specified in __init__.""" self.sock = socket.create_connection((self.host,self.port), self.timeout) For now I have been able to work around this by manually setting the timeout of the (private) socket object after calling con.request(), like this: ... con.request("GET", url) con.sock.settimeout(timeout) res = con.getresponse() ... However, I don't think this is a very good solution as it relies on knowledge about the inner workings of httplib (and I had to read the library source code to come up with it). >From the top of my head, I can come up with three (four) ways of properly solving the issue: 1) Documenting the timeout behavior and describing the above hack in the httplib documentation. 2) Modify HTTPConnection.connect() to set the timeout on the socket object after it has been created (using the same timeout as given on the HTTPConnection constructor). 3) Adding (optional) timeout parameters to HTTPConnection.getresponse() and HTTPResponse.read() (and possibly other functions with the same problem). 4) A combination of 2) and 3). Any thoughts on this? BTW: Once I figure out how, I wouldn't mind submitting a patch for either 2), 3) or 4), but personally I don't like 1). Anders

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Re: [Python-Dev] [pypy-dev] PyPy 1.3 released
by Maciej Fijalkowski 01 Jul '10

01 Jul '10

On Wed, Jun 30, 2010 at 3:24 PM, Phyo Arkar <phyo.arkarlwin(a)gmail.com> wrote: > So far , python-mysql still not working.. > > Anyone had sucessfully got it work? Hey. I'm not aware of anyone who had any success. You can come to #pypy on irc.freenode.net and we can see how to solve the problem. > > On Fri, Jun 25, 2010 at 11:27 PM, Maciej Fijalkowski <fijall(a)gmail.com> > wrote: >> >> ======================= >> PyPy 1.3: Stabilization >> ======================= >> >> Hello. >> >> We're please to announce release of PyPy 1.3. This release has two major >> improvements. First of all, we stabilized the JIT compiler since 1.2 >> release, >> answered user issues, fixed bugs, and generally improved speed. >> >> We're also pleased to announce alpha support for loading CPython extension >> modules written in C. While the main purpose of this release is increased >> stability, this feature is in alpha stage and it is not yet suited for >> production environments. >> >> Highlights of this release >> ========================== >> >> * We introduced support for CPython extension modules written in C. As of >> now, >> this support is in alpha, and it's very unlikely unaltered C extensions >> will >> work out of the box, due to missing functions or refcounting details. The >> support is disable by default, so you have to do:: >> >> import cpyext >> >> before trying to import any .so file. Also, libraries are >> source-compatible >> and not binary-compatible. That means you need to recompile binaries, >> using >> for example:: >> >> python setup.py build >> >> Details may vary, depending on your build system. Make sure you include >> the above line at the beginning of setup.py or put it in your >> PYTHONSTARTUP. >> >> This is alpha feature. It'll likely segfault. You have been warned! >> >> * JIT bugfixes. A lot of bugs reported for the JIT have been fixed, and >> its >> stability greatly improved since 1.2 release. >> >> * Various small improvements have been added to the JIT code, as well as a >> great >> speedup of compiling time. >> >> Cheers, >> Maciej Fijalkowski, Armin Rigo, Alex Gaynor, Amaury Forgeot d'Arc and >> the PyPy team >> _______________________________________________ >> pypy-dev(a)codespeak.net >> http://codespeak.net/mailman/listinfo/pypy-dev > >

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OS X buildbots: why am I skipping these tests?
by Bill Janssen 01 Jul '10

01 Jul '10

My Leopard and Tiger PPC buildbots are momentarily green! But I'm looking into why I'm skipping some tests. My buildbots are up-to-date OS-wise and very vanilla, with the latest applicable Xcode. 4 skips unexpected on darwin: test_gdb test_ioctl test_readline test_ttk_guionly Three of these (gdb, readline, ttk_guionly) are just bad predictions of which tests should skip on Darwin, I think -- gdb is only version 6, so that test won't run, readline doesn't get built, ttk doesn't work without Tcl/Tk 8.5. But the the skip of test_ioctl baffles me. "test_ioctl skipped -- Unable to open /dev/tty" But when I log in via ssh and try it with the system python: ~ wjanssen$ python python Python 2.5.1 (r251:54863, Jun 17 2009, 20:37:34) [GCC 4.0.1 (Apple Inc. build 5465)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> open("/dev/tty") open("/dev/tty") <open file '/dev/tty', mode 'r' at 0x597b8> >>> Seems to work fine. So this I don't understand. Any ideas, anyone? Bill

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