Mailman 3 May 2003 - Python-Dev

python-dev Summary for 2003-05-01 through 2003-05-15
by Brett C. May 19, 2003

May 19, 2003

It's that time of the month again. The only thing I would like help with this summary is if someone knows the attribute lookup order (instance, class, class descriptor, ...) off the top of their heads, can you let me know? If not I can find it out by going through the docs but I figure someone out there has to know it by heart and any possible quirks (like whether descriptors take precedence over non-descriptor attributes). I won't send this off until Wednesday. ---------------------- +++++++++++++++++++++++++++++++++++++++++++++++++++++ python-dev Summary for 2003-05-01 through 2003-05-15 +++++++++++++++++++++++++++++++++++++++++++++++++++++ This is a summary of traffic on the `python-dev mailing list`_ from May 1, 2003 through May 15, 2003. It is intended to inform the wider Python community of on-going developments on the list and to have an archived summary of each thread started on the list. To comment on anything mentioned here, just post to python-list(a)python.org or `comp.lang.python`_ with a subject line mentioning what you are discussing. All python-dev members are interested in seeing ideas discussed by the community, so don't hesitate to take a stance on something. And if all of this really interests you then get involved and join `python-dev`_! This is the seventeenth summary written by Brett Cannon (going to grad school, baby!). All summaries are archived at http://www.python.org/dev/summary/ . Please note that this summary is written using reStructuredText_ which can be found at http://docutils.sf.net/rst.html . Any unfamiliar punctuation is probably markup for reST_ (otherwise it is probably regular expression syntax or a typo =); you can safely ignore it, although I suggest learning reST; its simple and is accepted for `PEP markup`__. Also, because of the wonders of programs that like to reformat text, I cannot guarantee you will be able to run the text version of this summary through Docutils_ as-is unless it is from the original text file. __ http://www.python.org/peps/pep-0012.html The in-development version of the documentation for Python can be found at http://www.python.org/dev/doc/devel/ . To view files in the Python CVS online, go to http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/python/ . .. _python-dev: http://www.python.org/dev/ .. _python-dev mailing list: http://mail.python.org/mailman/listinfo/python-dev .. _comp.lang.python: http://groups.google.com/groups?q=comp.lang.python .. _Docutils: http://docutils.sf.net/ .. _reST: .. _reStructuredText: http://docutils.sf.net/rst.html .. contents:: .. _last summary: http://www.python.org/dev/summary/2003-04-16_2003-04-30.html ====================== Summary Announcements ====================== So, to help keep my sanity longer than my predecessors I am no longer going to link to individual modules in the stdlib nor to files in CVS. It sucks down a ton of time and at least Raymond Hettinger thinks it clutters the summaries. Along the lines of the look of the summaries, I am trying out a new layout for listing splinter threads. If you have a preference in comparison to the old style or new style speak up and let me know. ========================== `Dictionary sparseness`__ ========================== __ http://mail.python.org/pipermail/python-dev/2003-May/035295.html Splinter threads: `Where'd my memory go?`__ __ http://mail.python.org/pipermail/python-dev/2003-May/035340.html After all the work Raymond Hettinger did on dictionaries he suggested two possible methods on dictionaries that would allow the programmer to control how sparse (at what point a dictionary doubles its size in order to lower collisions) a dictionary should be. Both got shot down on the grounds that most people would not know how to properly use the methods and are more likely to shoot themselves in the foot than get any gain out of them. There was also a bunch of talk about the "old days" when computers were small and didn't measure the amount of RAM they had in megabytes unless they were supercomputers. But then the discussion changed to memory footprints. There was some mention of the extra output one can get from a special build (all listed in Misc/SpecialBuilds.txt) such as Py_DEBUG. But the issue at hand is that there int, float, and frameobject free lists which keep alive any and all created constant values (although the frameobject is bounded in size). This is why if you do ``range(2000000)`` you won't get the memory allocated for all of those integers back until you shut down the interpreter. This led to the suggestion of just doing away with the free lists. There would be a performance hit since numerical constants would have to be reallocated if they are constantly created deleted, and then created again. It was also suggested to limit the size of the free lists and basically chop off the tail if they grew too large. But it turns out that the memory is allocated in large blocks that are chopped up by intobject.c. Thus there is no way to just get rid of a few entries without taking out a whole block of objects. ================================= `__slots__ and default values`__ ================================= __ http://mail.python.org/pipermail/python-dev/2003-May/035575.html Ever initialized a variable in a class that uses __slots__? If you have you may have discovered that the variable becomes read-only:: class Parrot(object): __ slots__ = ["dead"] dead = True bought_bird = Parrot() bought_bird.dead = False That raises an AttributeError saying that 'dead' is read-only. This occurs because the class attribute "overrides the descriptor created by __slots__" and "now appears read-only because there is no instance dict" thanks to __slots__ suppressing the creation of one. But don't go using this trick! If you want read-only attributes use a property with its set function set to raise an exception. If you want to avoid this problem just do your initialization of attributes in the __init__ call. You can also include __dict__ in __slots__ and then your instances will have a fully functioning instance __dict__ (new in 2.3). The key thing to come away with this twofold. One is the resolution order of attribute lookup which is XXX. The other is that __slots__ is meant purely to cut down on memory usage, nothing more. Do not start abusing it with little tricks like the one mentioned above or Guido will pull it from the language. ========= Quickies ========= `Draft of dictnotes.txt`__ After all the work Raymond Hettinger did to try to speed up dictionaries, he wrote a text file documenting everything he tried and learned. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035246.html `_socket efficiencies ideas`__ This thread was first covered in the `last summary`_. Guido discovered that the socket module used to special-case receiving a numeric address in order to skip any overhead in bother to resolve the IP address. It has been put back into the code. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035248.html `Demos and Tools in binary distributions`__ Jack Jansen asked where other platform-specific binary distributions of Python put the Demo and Tools directories. The thread ended with the winning solution be putting them in /Applications/Python2.3/Extras/ so they are a level below the root directory to prevent newbies from getting overwhelmed by the code there since it is not all simple. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035252.html `updated notes about building bsddb185 module`__ Splinter threads: - `bsddb185 module changes checked in`__ Someone wanted the bsddb185 module back. Initially it was suggested to build that module as bsddb if the new bsddb3 module could not be built (since that module currently gets named bsddb). The final outcome was that bsddb185 will get built under certain conditions and be named bsddb185. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035257.html __ http://mail.python.org/pipermail/python-dev/2003-May/035409.html `broke email date parsing`__ ... but it got fixed. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035259.html `New thread death in test_bsddb3`__ This is a continuation from the `last summary`_. You can create as many thread states as you like as long as you only use one at any given point. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035230.html `removing csv directory from nondist/sandbox - how?`__ Joys of CVS. You can never removed a directory unless you have direct access the the physical directory on the CVS root server. The best you can do is to empty the directory (make sure to get files named ".*") and assume people will do an ``cvs update -dP``. You can also remove the empty directories locally by hand if you like. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035270.html `posixmodule.c patch to support forkpty`__ A patch was sent to python-dev incorrectly that tries to get os.forkpty to work on more platforms. It is now up on SourceForge_ and it is `patch #732401 <http://www.python.org/sf/732401>`__. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035281.html .. _SourceForge: http://www.sf.net/projects/python `Timbot?`__ There is a real Timbot robot out there: http://www.cse.ogi.edu/~mpj/timbot/#Programming . .. __: http://mail.python.org/pipermail/python-dev/2003-May/035287.html `optparse docs need proofreading`__ What the 'subject' says. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035288.html `heaps`__ This is a continuation of a thread from the `last summary`_. Lots of talk about heaps, priority queues, and other theoretical algorithm talk. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035343.html Weekly Python Bug/Patch Summary First one ended on `2003-05-04 <http://mail.python.org/pipermail/python-dev/2003-May/035292.html>`__. The second one ended on `2003-05-11 <http://mail.python.org/pipermail/python-dev/2003-May/035537.html>`__. `Distutils using apply`__ Since Distutils must be kept backwards-compatible (as stated in `PEP 291`_), it still uses 'apply'. This raises a PendingDeprecation warning which is normally silent unless you want all warnings raised. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035293.html .. _PEP 291: http://www.python.org/peps/pep-0291.html `How to test this?`__ Dummy files can be checked into Lib/test . .. __: http://mail.python.org/pipermail/python-dev/2003-May/035318.html `Windows installer request...`__ Someone wanted the default drive on the Windows installer to be your boot drive and not C. It has been fixed. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035319.html `Election of Todd Miller as head of numpy team`__ What the 'subject' says. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035326.html `Startup time`__ Guido noticed that although Python 2.3 is already faster than 2.2, its startup time is slower. It looks like it is from failing stat calls. Speeding this all up is still being worked on. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035359.html `testing with and without pyc files present`__ Why does ``make test`` delete all .pyc and .pyo files before running the regression tests? To act as a large scale test of the marshaling code. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035362.html `pyconfig.h not regenerated by "config.status --recheck"`__ ``./config.status --recheck`` doesn't work too well. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035366.html `Python Technical Lead, New York, NY - 80-85k`__ Wrong place for a job announcement. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035369.html `RedHat 9 _random failure under -pg`__ gcc ain't perfect. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035386.html `SF CVS offline`__ ... but it came back up. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035398.html `Microsoft speedup`__ It was noticed that turning on more aggressive inlining for VC6 sped up pystone by 2.5% while upping the executable size by 13%. Tim Peters noted that "A couple employers ago, we disabled all magical inlining options, because sometimes they made critical loops faster, and sometimes slower, and you couldn't guess which as the code changed". .. __: http://mail.python.org/pipermail/python-dev/2003-May/035454.html `Relying on ReST in the core?`__ Although docutils_ is not in the core yet, it is being used more and more. But is this safe? As long as it's kept conservative and not required anywhere, yes. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035465.html `Make _strptime only time.strptime implementation?`__ As long as no one complains to loudly by 2.3b2, _strptime.strptime will become the exclusive implementation of time.strptime. _strptime.strptime also learned how to recognize UTC and GMT as timezones. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035481.html `Building Python with .NET 2003 SDK`__ Logistix was nice enough to try to build Python on .NET 2003 and post notes on how he did it at http://www.cathoderaymission.net/~logistix/python/buildingPythonWithDotNet.… . .. __: http://mail.python.org/pipermail/python-dev/2003-May/035485.html `local import cost`__ Trying to find out how the cost of doing imports in the local namespace costs compared to doing it at the global level. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035486.html `Subclassing int?`__ This thread started `two summaries ago <http://www.python.org/dev/summary/2003-04-01_2003-04-15.html>`__. Subclassing int to make it mutable just doesn't work. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035500.html `patch 718286`__ The patch was applied. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035538.html `Need some patches checked`__ Some patches needed to be cleared by more senior members of python-dev since they were being handled by the young newbie of the group. Jeremy Hylton also mentioned that a full-scale refactoring of urllib2 is needed and would allow the closure of some patches. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035540.html `os.path.walk() lacks 'depth first' option`__ Splinter threads: - `os.walk() silently ignores errors`__ This thread started in the `last summary`_. LookupError exists and subclasses both IndexError and KeyError. Rather handy when you don't care whether you are dealing with a list or dictionary but do care if what you are looking for doesn't exist. os.walk also gained a parameter argument called onerror that takes a function that will be passed any exception raised by os.walk as it does its thing; previously os.walk ignored all errors. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035546.html __ http://mail.python.org/pipermail/python-dev/2003-May/035574.html `Random SF tracker ettiquete questions`__ Does python-dev care about dealing with RFEs? Sort of; it isn't a priority like patches and bugs, but cleaning them out once in a while doesn't hurt. Is it okay to assign a tracker item to yourself even if it is already assigned to another person? If the original person it was assigned to is not actively working on it, then yes. When should someone be put into the Misc/ACKS file? When they have done anything that required some amount of brain power (yes, this includes one-line patches). .. __: http://mail.python.org/pipermail/python-dev/2003-May/035549.html `codeop: small details (Q); commit priv request`__ Some issues with codec were worked out and Samuele Pedroni got commit privileges. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035556.html `Python 2.3b1 _XOPEN_SOURCE value from configure.in`__ Python.h should always be included in extension modules first before any other header files. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035560.html `Inplace multiply`__ Someone thought they had found a bug. Michael Hudson thought it was an old bug that was fixed. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035591.html `sf.net/708007: expectlib.py telnetlib.py split`__ A request for people to look at http://www.python.org/sf/708007 . .. __: http://mail.python.org/pipermail/python-dev/2003-May/035605.html `Simple dicts`__ Tim Peters suggested that if someone wanted something to do they could try re-implementing dicts to using chaining instead of open addressing. It turns out Damien Morton (who did a ton of work trying to optimize Python's bytecode) is working on an immplementation. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035625.html `python/dist/src/Lib warnings.py,1.19,1.20`__ As part of the attempts to speed up startup time, the attempted elimination of the required import of the re module came up. This thread brought up the question as to whether it was desired to be able to pass a regexp as an argument for the -W command-line option for Python. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035616.html `[PEP] += on return of function call result`__ You can't assign on the return value of a method calls. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035640.html `Vacation; Python 2.2.3 release.`__ Guido is going on vacation and won't be back until May 26. He would like Python 2.2.3 to be out shortly after he gets back, although if it comes out while he is gone he definitely won't complain. =) You can get an anonymous CVS checkout of the 2.2 maintenance branch by executing ``cvs -d :pserver:anonymous@cvs.python.sourceforge.net:/cvsroot/python checkout -d <dir to store in> -r release22-maint python`` and changing the <> note to be the directory you want to put your CVS copy into. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035642.html `MS VC 7 offer`__ At `Python UK`_ Guido was offered free copies of `Visual C++ 2003`_ by the project lead of VC, Nick Hodapp, for key developers (a free copy of the compiler is available at http://www.msdn.microsoft.com/netframework/downloads/howtoget.aspx ). This instantly led to the discussion of whether Python's binary distribution for Windows should be moved off of VC 6 to 7. The biggest issue is that apparently passing FILE * values across library boundaries breaks code. The final decision seemed to be that Tim, Guido, and developers of major extensions should get free copies. Then an end date of when Python will be moved off of VC 6 and over to 7 will be decided. None of this will affect Python 2.3 . This thread was 102 emails long. I don't use Windows. This was painful. .. __: http://mail.python.org/pipermail/python-dev/2003-May/035375.html .. _Python UK: http://www.python-uk.org/ .. _Visual C++ 2003: http://msdn.microsoft.com/visualc/

3 2

C new-style classes and GC
by Jim Fulton May 18, 2003

May 18, 2003

Lately I've been re-learning how to write new types in C. Things changed drastically (for the better) in 2.2. I've been updating the documentation on writing new types as I go: http://www.python.org/dev/doc/devel/ext/defining-new-types.html (I'm also updating modulator.) I'm starting to try to figure out how to integrate support for GC. The current documentation in the section "Supporting the Cycle Collector" doesn't reflect new-style types and is, thus, out of date. Frankly, I'm taking the approach that there is only One Way to create types in C, the new way, based on new-style types as now documented in the manual. I'll also note that most new-style types don't need and thus don't implement custom allocators. They leave the tp_alloc and tp_free slots empty. So given that we have a new style type, to add support for GC, we need to: - Set the Py_TPFLAGS_HAVE_GC type flag, - Provide implementations of tp_traverse and tp_clear, as described in the section "Supporting the Cycle Collector" section of the docs. - Call PyObject_GC_UnTrack at the beginning of the deallocator, before decrefing any members. I think that that is *all* we have to do. In particular, since we have a new style type that inherits the standard allocator, we don't need to fool with PyObject_GC_New, and PyObject_GC_DEL, because the default tp_alloc and tp_free take care of that for us. Similarly, we don't need to call PyObject_GC_Track, because that is done by the default allocator. (Because of that, our traverse function has to check for null object pointers in our object's members.) Did I get this right? I intend to update the docs to reflect this understanding (or a corrected one, of course). Jim -- Jim Fulton mailto:jim@zope.com Python Powered! CTO (703) 361-1714 http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org

5 20

finances got you down?
by Silkz May 18, 2003

May 18, 2003

1 0

Weekly Python Bug/Patch Summary
by Skip Montanaro May 18, 2003

May 18, 2003

Bug/Patch Summary ----------------- 403 open / 3646 total bugs (-11) 141 open / 2161 total patches (+6) New Bugs -------- Problem With email.MIMEText Package (2003-05-12) http://python.org/sf/736407 allow HTMLParser error recovery (2003-05-12) http://python.org/sf/736428 markupbase parse_declaration cannot recognize comments (2003-05-12) http://python.org/sf/736659 forcing function to act like an unbound method dumps core (2003-05-13) http://python.org/sf/736892 CGIHTTPServer does not handle scripts in sub-dirs (2003-05-13) http://python.org/sf/737202 os.symlink docstring is ambiguous. (2003-05-13) http://python.org/sf/737291 need doc for new trace module (2003-05-14) http://python.org/sf/737734 Failed assert in stringobject.c (2003-05-14) http://python.org/sf/737947 Interpreter crash: sigfpe on Alpha (2003-05-14) http://python.org/sf/738066 Section 13.3: htmllib.HTMLParser constructor definition amen (2003-05-15) http://python.org/sf/738090 pdb doesn't find some source files (2003-05-15) http://python.org/sf/738154 crash error in glob.glob; directories with brackets (2003-05-15) http://python.org/sf/738361 csv.Sniffer docs need updating (2003-05-15) http://python.org/sf/738471 On Windows, os.listdir() throws incorrect exception (2003-05-15) http://python.org/sf/738617 urllib2 CacheFTPHandler doesn't work on multiple dirs (2003-05-16) http://python.org/sf/738973 array.insert and negative indices (2003-05-17) http://python.org/sf/739313 New Patches ----------- Mutable PyCObject (2001-11-02) http://python.org/sf/477441 Improvement of cgi.parse_qsl function (2002-01-25) http://python.org/sf/508665 CGIHTTPServer execfile should save cwd (2002-01-25) http://python.org/sf/508730 rlcompleter does not expand on [ ] (2002-04-22) http://python.org/sf/547176 ConfigParser.read() should return list of files read (2003-01-30) http://python.org/sf/677651 DESTDIR improvement (2003-05-12) http://python.org/sf/736413 Put DEFS back to Makefile.pre.in (2003-05-12) http://python.org/sf/736417 Trivial improvement to NameError message (2003-05-12) http://python.org/sf/736730 interpreter final destination location (2003-05-12) http://python.org/sf/736857 docs for interpreter final destination location (2003-05-12) http://python.org/sf/736859 Port tests to unittest (Part 2) (2003-05-13) http://python.org/sf/736962 traceback module caches sources invalid (2003-05-13) http://python.org/sf/737473 minor codeop fixes (2003-05-14) http://python.org/sf/737999 for i in range(N) optimization (2003-05-15) http://python.org/sf/738094 fix for glob with directories which contain brackets (2003-05-15) http://python.org/sf/738389 Add use_default_colors support to curses module. (2003-05-17) http://python.org/sf/739124 Closed Bugs ----------- Regular expression tests: SEGV on Mac OS (2001-04-16) http://python.org/sf/416526 CGIHTTPServer crashes Explorer in WinME (2001-05-31) http://python.org/sf/429193 MacPy21: sre "recursion limit" bug (2001-06-29) http://python.org/sf/437472 provide a documented serialization func (2001-10-02) http://python.org/sf/467384 Security review of pickle/marshal docs (2001-10-16) http://python.org/sf/471893 Improvement of cgi.parse_qsl function (2002-01-25) http://python.org/sf/508665 CGIHTTPServer execfile should save cwd (2002-01-25) http://python.org/sf/508730 metaclasses and 2.2 highlights (2002-02-08) http://python.org/sf/515137 bsddb keys corruption (2002-02-25) http://python.org/sf/522780 test_pyclbr: bad dependency for input (2002-03-12) http://python.org/sf/529135 Wrong exception from re.compile() (2002-04-18) http://python.org/sf/545855 regex segfault on Mac OS X (2002-04-19) http://python.org/sf/546059 rlcompleter does not expand on [ ] (2002-04-22) http://python.org/sf/547176 os.spawnv() fails with underscores (2002-06-30) http://python.org/sf/575770 Print line number of string if at EOF (2002-07-04) http://python.org/sf/577295 Build error using make VPATH feature (2002-10-22) http://python.org/sf/626926 Have exception arguments keep their type (2003-01-27) http://python.org/sf/675928 No documentation of static/dynamic python modules. (2003-03-12) http://python.org/sf/702157 Distutils documentation amputated (2003-04-01) http://python.org/sf/713722 datetime types don't work as bases (2003-04-13) http://python.org/sf/720908 _winreg doesn't handle NULL bytes in value names (2003-04-16) http://python.org/sf/722413 add timeout support in socket using modules (2003-04-17) http://python.org/sf/723287 Minor /Tools/Scripts/crlf.py bugs (2003-04-20) http://python.org/sf/724767 rexec not listed as dead (2003-04-29) http://python.org/sf/729817 Clarification of "pos" and "endpos" for match objects. (2003-05-04) http://python.org/sf/732124 telnetlib.read_until: float req'd for timeout (2003-05-08) http://python.org/sf/734806 cStringIO.StringIO (2003-05-09) http://python.org/sf/735535 libwinsound.tex is missing MessageBeep() description (2003-05-10) http://python.org/sf/735674 Closed Patches -------------- xmlrpclib: Optional 'nil' support (2002-10-24) http://python.org/sf/628208 Remove type-check from urllib2 (2002-11-15) http://python.org/sf/639139 urllib2.Request's headers are case-sens. (2002-12-06) http://python.org/sf/649742 has_function() method for CCompiler (2003-04-07) http://python.org/sf/717152 DESTDIR variable patch (2003-04-09) http://python.org/sf/718286 socketmodule inet_ntop built when IPV6 is disabled (2003-04-30) http://python.org/sf/730603 make threading join() method return a value (2003-05-02) http://python.org/sf/731607 exit status of latex2html "ignored" (2003-05-04) http://python.org/sf/732143 build of html docs broken (liboptparse.tex) (2003-05-04) http://python.org/sf/732174 Docs for test package (2003-05-04) http://python.org/sf/732394 Python2.3b1 makefile improperly installs IDLE (2003-05-10) http://python.org/sf/735613 Python makefile may install idle in the wrong place (2003-05-10) http://python.org/sf/735614

1 0

SF oddity
by Raymond Hettinger May 18, 2003

May 18, 2003

When I look at www.python.org/sf/732174 , there is no Submit button on the screen. But I see it for other docs and patches. Is anyone else having the same issue? Without a submit button, it is darned difficult to mark the bug as fixed and close it. --R

3 2

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May 18, 2003

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1 0

grlsp ihort pjjkku tz w
by Louise Hamilton May 17, 2003

May 17, 2003

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Re: [Python-Dev] test_urllibnet failing on Windows
by Brett C. May 16, 2003

May 16, 2003

Tim Peters wrote: >>... >>The docs for fdopen say nothing about this restriction. Anyone mind if >>I add to the docs a mention of this limitation? > > > AFAICT, you only asked me, so I'll answer <wink>: Joys of missing the "reply all" button. I am cc'ing python-dev on this now. > I think this is better > spelled out in the docs for socket.fileno(). What it says now: > > Return the socket's file descriptor (a small integer). This is > useful with select.select(). > > is correct for Unix, but on Windows it does not return a file descriptor (it > returns a Windows socket handle, which is also "a small integer", and is > also useful select.select() -- although on both Windows and Unix, > select.select() extracts the fileno() from socket objects automatically, so > there's no *need* to invoke fileno() explicitly in order to call select()). > OK. I will fix those docs. -Brett

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a strange case
by Fred L. Drake, Jr. May 16, 2003

May 16, 2003

Here's a strange case we just ran across, led along by a typo in an import statement. This is using the head of the 2.2.x maintenance branch; I've not tested this against the trunk yet. >>> import os >>> class Foo(os): ... pass ... >>> Foo <module '?' (built-in)> I suspect this isn't intentional behavior. ;-) -Fred -- Fred L. Drake, Jr. <fdrake at acm.org> PythonLabs at Zope Corporation

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test_time fails with current CVS
by M.-A. Lemburg May 16, 2003

May 16, 2003

Just thought you'd like to know: test test_time failed -- Traceback (most recent call last): File "/home/lemburg/projects/Python/Dev-Python/Lib/test/test_time.py", line 107, in test_tzset self.failUnless(time.tzname[1] == 'AEDT', str(time.tzname[1])) File "/home/lemburg/projects/Python/Dev-Python/Lib/unittest.py", line 268, in failUnless if not expr: raise self.failureException, msg AssertionError: AEST In case it helps: I live on the northern hemisphere :-) BTW, the correct time zone names are: EAST and EADT -- perhaps that's what's causing the problem ? -- Marc-Andre Lemburg eGenix.com Professional Python Software directly from the Source (#1, May 16 2003) >>> Python/Zope Products & Consulting ... http://www.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ EuroPython 2003, Charleroi, Belgium: 39 days left

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