Python-Dev December 2006

python-dev@python.org

79 participants
70 discussions

by Kurt B. Kaiser

Patch / Bug Summary ___________________ Patches : 414 open ( +1) / 3498 closed ( +9) / 3912 total (+10) Bugs : 949 open ( +6) / 6376 closed (+12) / 7325 total (+18) RFE : 247 open ( +1) / 245 closed ( +1) / 492 total ( +2) New / Reopened Patches ______________________ C99 _Bool support for struct (2006-12-07) http://python.org/sf/1610575 opened by David Remahl BSD version of ctypes.util.find_library (2006-12-07) http://python.org/sf/1610795 opened by Martin Kammerhofer whitespace in `svnversion .` (2006-10-15) CLOSED http://python.org/sf/1577756 reopened by schmaller Enhanced tabbed pane widget (2006-12-10) http://python.org/sf/1612746 opened by Tal Einat encoding directive -- more examples (2006-12-11) http://python.org/sf/1613352 opened by Jim Jewett Write mode option for fileinput module. (2006-12-11) http://python.org/sf/1613500 opened by Anthony Roy POSIX capabilities support (2006-12-13) http://python.org/sf/1615158 opened by Matt Kern Creating dicts for dict subclasses (2006-12-14) http://python.org/sf/1615701 opened by Walter Dörwald BZ2File.seek() fails for large files (2006-12-14) http://python.org/sf/1615868 opened by Lars Gustäbel Cached globals+builtins lookup optimization (2006-12-15) http://python.org/sf/1616125 opened by Andrea Griffini Patches Closed ______________ whitespace in `svnversion .` (2006-10-15) http://python.org/sf/1577756 closed by gbrandl traceback on exit if syslog handler fails to initialize (2006-12-05) http://python.org/sf/1609407 closed by vsajip Race condition in os.makedirs (2006-12-04) http://python.org/sf/1608579 closed by gbrandl Prevent race condition in os.makedirs (2005-07-17) http://python.org/sf/1239890 closed by gbrandl os.makedirs - robust against partial path (2005-10-05) http://python.org/sf/1314067 closed by gbrandl modsupport does not use va_copy when available (2003-12-11) http://python.org/sf/858318 closed by sf-robot acknowledge signals in non-main threads (2004-12-21) http://python.org/sf/1088832 closed by loewis Patch for bug 999042. (2004-12-23) http://python.org/sf/1090482 closed by loewis socket leak in SocketServer (2004-12-30) http://python.org/sf/1093468 closed by loewis mailbox.py: check that os.fsync is available before using it (2006-11-19) http://python.org/sf/1599256 closed by akuchling New / Reopened Bugs ___________________ GUI for Python 2.3, 2.4, and 2.5 is very sluggish (2006-12-06) CLOSED http://python.org/sf/1610485 reopened by g4rlik cgi.py multipart/form-data (2006-12-07) http://python.org/sf/1610654 opened by Chui Tey \b in unicode regex gives strange results (2006-12-07) CLOSED http://python.org/sf/1611131 opened by akaihola os.path.exists("file/") failure on Solaris 9 (2006-12-07) http://python.org/sf/1611154 opened by Paul Eggert can't pickle NAN's in binary mode (2006-12-08) CLOSED http://python.org/sf/1611753 opened by Wayne Christopher sndhdr.what() does not recognize wav file (2006-12-09) http://python.org/sf/1611944 reopened by klankschap sndhdr.what() does not recognize wav file (2006-12-09) http://python.org/sf/1611944 opened by Floris van Manen builtin compile() doc needs PyCF_DONT_IMPLY_DEDENT (2006-12-09) http://python.org/sf/1612012 opened by Anthony Baxter Dictionary ordering docs are too unclear of dangers (2006-12-09) http://python.org/sf/1612113 opened by Calvin Spealman webchecker/urllib chokes on 404 pages (2006-12-10) CLOSED http://python.org/sf/1612729 opened by Fredrik Lundh lambda tuple parameter bus error (2006-12-11) CLOSED http://python.org/sf/1613059 opened by Bruce Cropley str.split creates new string even if pattern not found (2006-12-11) http://python.org/sf/1613130 opened by Antoine Pitrou pydoc info for a package doesn't list all package contents (2006-12-11) http://python.org/sf/1613479 opened by Nishkar Grover xmlrpclib ServerProxy uses old httplib interface (2006-12-12) http://python.org/sf/1613573 opened by Matt Brown recv_into not documented (2006-12-11) http://python.org/sf/1613651 opened by Eric Huss AttributesImpl does not implement __contains__ on Linux (2006-12-13) http://python.org/sf/1614387 opened by Jason Briggs dict throwing inaccurate KeyError on small tuple keys (2006-12-13) CLOSED http://python.org/sf/1614429 opened by toidinamai python-logging compatability with Zope. (2006-12-13) http://python.org/sf/1614460 opened by Simon Hookway tempile.TemporaryFile differences between linux and windows (2006-12-13) http://python.org/sf/1615275 opened by hirzel subprocess doesn't handle SIGPIPE (2006-12-14) http://python.org/sf/1615376 opened by Mark Diekhans IA64/AMD64/x64 confusion (2006-12-14) http://python.org/sf/1616109 opened by Sidnei da Silva Bugs Closed ___________ GUI for Python 2.3, 2.4, and 2.5 is very sluggish (2006-12-06) http://python.org/sf/1610485 closed by kbk \b in unicode regex gives strange results (2006-12-07) http://python.org/sf/1611131 deleted by akaihola can't pickle NAN's in binary mode (2006-12-08) http://python.org/sf/1611753 closed by mwh race in os.makedirs() (2005-06-18) http://python.org/sf/1223238 closed by gbrandl simple moves freeze IDLE (2006-10-05) http://python.org/sf/1571112 closed by kbk webchecker/urllib chokes on 404 pages (2006-12-10) http://python.org/sf/1612729 closed by gbrandl lambda tuple parameter bus error (2006-12-11) http://python.org/sf/1613059 closed by gbrandl logger.config problems with comma separated lists (2006-06-09) http://python.org/sf/1503765 closed by vsajip mailbox: Maildir.get_folder does not inherit factory (2006-11-20) http://python.org/sf/1600152 closed by akuchling dict throwing inaccurate KeyError on small tuple keys (2006-12-12) http://python.org/sf/1614429 closed by rhettinger New / Reopened RFE __________________ Py_DEBUG (2006-12-09) http://python.org/sf/1612190 opened by nitro Class Browser doesn't show internal classes (2006-12-09) http://python.org/sf/1612262 opened by Tal Einat RFE Closed __________ "".translate() docs should mention string.maketrans() (2006-11-08) http://python.org/sf/1592899 closed by gbrandl

13 years, 7 months

Creating dicts from dict subclasses

by Walter Dörwald

I tried to reimplement weakref.WeakValueDictionary as a subclass of dict. The test passes except for one problem: To compare results test_weakref.py converts a weakdict to a real dict via dict(weakdict). This no longer works because PyDict_Merge() does a PyDict_Check() on the argument and then ignores all overwritten methods. (The old version worked because UserDict.UserDict was used). The simplest solution is to replace the PyDict_Check() call with PyDict_CheckExact(), but this might slow things down too much, because the fallback code basically does: for key in iter(arg.keys()): self[key] = arg.__getitem__(key) Why can't we use: for key in iter(arg): self[key] = arg.__getitem__(key) instead? Servus, Walter

13 years, 7 months

Adding resume (206) support to urllib(2)

by Daniel Watkins

Hi guys, I've just been putting together a podcasting doodad and have included resuming support in it. Is this something that's already in the pipeline or should I abstract it out to urllib and submit a patch? Dan

13 years, 7 months

Re: [Python-Dev] [Python-checkins] MSI being downloaded 10x morethan all other files?!

by Terry Jones

>>>>> "Guido" == Guido van Rossum <guido(a)python.org> writes: Guido> And I just found out (after everyone else probably :-) that YouTube Guido> is almost entirely written in Python. (And now I can rub shoulders Guido> with the developers since they're all Googlers now... :-) Are any other details available? I'm mainly curious to know if they were using Twisted. Terry

13 years, 7 months

MSI being downloaded 10x more than all other files?!

by Guido van Rossum

I looked through the python.org web stats (as I usually do when preparing for a keynote) and discovered that /ftp/python/2.5/python-2.5.msi is by far the top download -- 271,971 hits, more than 5x the next one, /ftp/python/2.5/Python-2.5.tgz (47,898 hits). Are these numbers real? (The byte counts suggest they are.) What could cause this dramatic popularity of Python on Windows? Does some vendor have an auto-install hook that installs Python whenever someone opens up their new computer? Or have we just hit the jackpot? -- --Guido van Rossum (home page: http://www.python.org/~guido/)

13 years, 7 months

Re: [Python-Dev] [Python-checkins] MSI being downloaded 10x more than all other files?!

by glyph＠divmod.com

On 11:17 pm, guido(a)python.org wrote: >On 12/11/06, Jim Jewett <jimjjewett(a)gmail.com> wrote: >> On 12/8/06, Guido van Rossum <guido(a)python.org> wrote: >> > /ftp/python/2.5/python-2.5.msi is by far the top download -- 271,971 >> > hits, more than 5x the next one, /ftp/python/2.5/Python-2.5.tgz >> > (47,898 hits). Are these numbers real? >> >> Why wouldn't it be? > >Just because in the past the ratio of downloads for a particular >version was always about 70% Windows vs. 30% source. Now it seems >closer to 90/10. Personally speaking, since switching to Ubuntu, I've been so happy with the speed of releases and the quality of packaged Python that I haven't downloaded a source release from python.org in over a year. If I need packages, they're already installed. If I need source from a release, I 'apt-get source' to conveniently install it from a (very fast) ubuntu mirror. When I need something outside the Ubuntu release structure, it's typically an SVN trunk checkout, not a release tarball. I don't know what Ubuntu's impact in the general user community has been, but it seems that the vast majority of python developers I interact with on a regular basis have switched. I wouldn't be surprised if this were a major part of the impact.

13 years, 7 months

Looking for new Python-Dev Summarizers

by Steven Bethard

It's been my pleasure to write the Python-Dev Summaries for the last year and a half -- 40 summaries all told, 8 of those with Tim Lesher and 23 with Tony Meyer. It's really been an incredible learning experience, both in how the Python development process works, and in how Python as a community interacts. As I'm now coming up on the last semester of so of my Ph.D., I need to make some more time to get research done, and so I'm looking to retire from the summaries. Hence, I'm soliciting for a good replacement (or a few) who would be willing to pick up the job. The job takes a few hours about once every two weeks. I have scripts to automate most of the grunt work (e.g. collecting the threads from mail.python.org and laying out the summary as necessary for the website), so the job is pretty much just writing a ReST-formatted paragraph or two on each topic. If you've been reading Python-Dev for a while, and you'd like to get involved, this is a great place to start - I can guarantee you'll learn a lot from it. Please drop me an email if you're interested! Thanks, Steve -- I'm not *in*-sane. Indeed, I am so far *out* of sane that you appear a tiny blip on the distant coast of sanity. --- Bucky Katt, Get Fuzzy

13 years, 7 months

fileinput module tests

by Anthony Roy

Hi all, I have a patch for the fileinput.FileInput class, adding a parameter to the __init__ method called write_mode in order to specify the write mode when using the class with the inplace parameter set to True. Before I submit the patch, I've added a test to the test module, and noticed that the module is pretty messy, with half of the tests being run in the module body, and the rest in a large function body. I propose to refactor the module, moving the tests into a unittest.TestCase subclass (essentially unchanged, bar changing verify calls to self.assert_ calls, raise TestFailed(...) to self.fail(...) etc). I think this will add clarity and modularity to the tests, and bring them into line with the unittest based test suite used by the test_file module amongst others (which I'm guessing are substantially more up to date than test_fileinput). Any thought? Cheers, -- Ant...

13 years, 7 months

Windows SDK

by Albert Strasheim

Hello all (A quick google of the python-dev archive didn't turn up any discussions on this topic. If this has already been discussed, please accept my humble apologies.) As part of the Windows Vista release, Microsoft have created the "Windows SDK" that looks like Platform SDK on steroids. It includes 32-bit and 64-bit libraries and compilers, debugging tools, etc. and supports Windows XP, Windows Server 2003 and Windows Vista. Check the Microsoft Windows SDK Blog for more info: http://blogs.msdn.com/windowssdk/ Go here for links to ISO and web install: http://blogs.msdn.com/windowssdk/archive/2006/11/08/windows-sdk-for-windows… I'm only guessing here, but I think the Windows SDK is probably going to become the de facto standard for building software on Windows in the absence of Visual Studio. Has anybody else looked at the Windows SDK yet? Any thoughts on what needs to be done with distutils so that the Windows SDK can be supported in Python 2.6? Cheers, Albert Strasheim

13 years, 7 months

help for a noob - version for a sharp ARM

by David Boddie

On Fri Dec 8 08:07:16 CET 2006, Josiah Carlson wrote: > a Fred <fghaibach at comcast.net> wrote: > > > > I'm looking for advice on stripping down Python for an SBC to run Numpy > > and Scipy. I have the following notes on the system > > > > We have code that requires recent versions of Numpy and Scipy. > > The processor is a 32 bit Sharp ARM Sharp LH7A404 32 bit ARM922TDMI with > > 32MB of SDRAM. > > 512 MB flash disk - but 400 MB is reserved for data > > The OS is Linux > > only a tty interface is used. > > > > Does anyone have a feel as to whether Python for Arm is the correct > > starting point? > > Sounds like plenty of muscle to handle Python certain domain number > crunching problems. It appears that this ARM variant doesn't have a floating point coprocessor. http://www.sharpsma.com/Page.aspx/americas/en/part/LH7A404/ I hope we're dealing with those problem domains here. ;-) > > What modules can I safely add/strip out? > > Most every C module you don't need. You can also compile without > unicode. I believe you can more or less toss everything except for the > base python binary and the pythonxy.so (or pythonxy.dll) for your > platform, but I am most likely wrong. I found that Python tries to import various modules when it starts up, so you might want to be a bit conservative with the ones you discard. However, if the target platform doesn't have libraries that various extension modules require then there's clearly no point in deploying those extensions. There are lots of irrelevant modules (for your application, at least) in the standard library. Anything that's platform-specific can go, apart from any Linux-specific modules, obviously, and even those might be unnecessary. I'm not sure if it's possible to automatically strip out Tkinter (lib-tk) and IDLE (idlelib), but it's probably worth doing so in your case. I should return to my own experiments and do all that again in a systematic way, just to see what can be removed. > My (awful) suggestion: start with > a Python installation in some user path, like ~/python . Toss > everything and start adding things that it complains about until it > starts working again. Or there's that approach. A module dependency graph would be useful to have, or even just a list of modules that are required to get to the interactive prompt. It might also be worthwhile compiling all the pure Python modules to bytecode and discarding the sources, but only if the compiled code is smaller, of course. > > Will Python take more than 5-6 seconds to load? > > I have previously gotten dos versions of Python (I think 1.5 or 1.4) to > load on a 486 sx 33 with 8 megs of ram in a couple seconds. You > shouldn't have issues with startup on an ARM. Less than a second, I would imagine. Extension modules will also increase the loading time, especially if they need to be perform some tasks when they start. > > Will old Python releases, like 1.5.x, work with newer Numpy and Scipy? > > I don't know. But you should be able to remove unused portions of > Python for your platform. There are somewhat recent posts in this > mailing lists about embedded systems and Python. Others may be able to > help you more. It should be possible to compile a version of Python for the ARM922TDMI that uses Thumb instructions. These are 16 bit instructions that are expanded on the fly so that they can be processed by the CPU as normal 32 bit wide instructions. This doesn't mean that the resulting executable and libraries will be half the size that they would have been when compiled normally, but you may be able to save some storage space that way. I have no idea whether this trick will help you save RAM as well. David

13 years, 7 months

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Python-Dev December 2006