Mailman 3 February 2009 - Python-Dev

Fwd: IDLE on a Mac
by ringhome 09 Feb '09

09 Feb '09

Begin forwarded message: > From: python-3000-owner(a)python.org > Date: Feb 06, 2009 8:11:23 AM GMT-07:00 > To: ringhome(a)cox.net > Subject: IDLE on a Mac > > This mailing list is closed now. Please use python-dev(a)python.org > instead. > > > From: ringhome <ringhome(a)cox.net> > Date: Feb 06, 2009 8:11:19 AM GMT-07:00 > To: python-3000(a)python.org > Subject: IDLE on a Mac > > > Hi. First, I'd like to say how wonderful 3.0 is. I'm using it at > work, and it it indispensable. > > I am, however, having a small difficulty at home on my Mac. Not > willing to wait for a nice, pre-packaged bundle, I went and > downloaded the files and built 3.0 myself. The issue comes from > launching the IDLE.app from the Mac GUI versus a Terminal Shell. > From the GUI, IDLE launches fine, but the FILE dropdown menu only > has "Recent Files" in it. No way to create new one, save, etc. > > The README pages say to write to you if we're not sure if something > is a feature or a bug.... So, here I am. :) > > Thanks. > >

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Pycon and Randall Munroe
by Jeroen Ruigrok van der Werven 09 Feb '09

09 Feb '09

Whoever thought this one up [1], thank you for making me almost choke on my meal due to laughing fits. :-) [1] http://pycon.blogspot.com/2009/02/randall-munroe.html -- Jeroen Ruigrok van der Werven <asmodai(-at-)in-nomine.org> / asmodai イェルーンラウフロックヴァンデルウェルヴェン http://www.in-nomine.org/ | http://www.rangaku.org/ | GPG: 2EAC625B Earth to earth, ashes to ashes, dust to dust...

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Partial function application 'from the right'
by Ben North 09 Feb '09

09 Feb '09

Hi, As suggested, I've created http://bugs.python.org/issue5191 to hold the patches for this feature, and the relation to the 'partial.skip' feature request. Could somebody with appropriate privileges close the issue as rejected, if indeed that is the decision? Thanks, Ben.

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Missing operator.call
by Hrvoje Niksic 08 Feb '09

08 Feb '09

Is there a reason why the operator module doesn't have an operator.call function? It would seem logical to be able to write: map(operator.call, lst) which calls each object in lst, just like map(operator.neg, lst) negates every object. Of course, operator.call is equivalent to lambda x: x(), but such an equivalence exists for all functions in the operator module. __call__ should also be provided for symmetry with other operators that correspond to special-name methods. If there is interest in this and no reason why it shouldn't be done, I can write up an issue in the tracker and provide a patch.

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IDLE reading IDLESTARTUP or PYTHONSTARTUP on restart
by Mitchell L Model 08 Feb '09

08 Feb '09

I have a small change (shown below) to PyShell.py in idlelib that causes the subprocess interpreter to read IDLESTARTUP or PYTHONSTARTUP each time it restarts. To me this would make IDLE much more useful for myself and students I teach. It isn't quite clear what behavior to install with the enabling patch, so I would like some feedback before submitting it. The main question is: Shouldn't IDLE always read IDLESTARTUP (if defined) or PYTHONSTARTUP (if IDLESTARTUP is not defined and PYTHONSTARTUP is) when it starts rather than that requiring a command-line switch as it does now? This is the behavior of python, and I don't see why it should be any different for IDLE. More importantly, there is no convenient way to say "and read my startup file" when double-clicking the IDLE icon. (I'm on a Mac. On Windows the -s switch could be added to an icon for IDLE, but that's still awkward.) Secondary questions; If IDLE is changed to read a startup file, should the -s switch be dropped altogether? If so, should a -q switch be added (as with emacs) to start without loading the startup file? I think yes to both. When the subprocess interpreter is restarted should it look in the environment for the current values of IDLESTARTUP and PYTHONSTARTUP, or should IDLE store those values in a property of the subprocess interpreter when first started and have restart go directly to the saved path even if the value of IDLESTARTUP or PYTHONSTARTUP has changed since IDLE had been started. I think restart should go to the path as it was when IDLE was started and ignore subsequent changes. Or at least the reststart should notice the change and present a dialog asking the user to choose between the old path and the new one. The diff modifies PyShell by copying the four lines of code that load IDLESTARTUP or PYTHONSTARTUP from where they appear in the initial startup code and adding to where the subprocess interpreter writes "RESTART" to the console. @@ -434,6 +434,10 @@ console.write(halfbar + ' RESTART ' + halfbar) console.text.mark_set("restart", "end-1c") console.text.mark_gravity("restart", "left") + filename = os.environ.get("IDLESTARTUP") or \ + os.environ.get("PYTHONSTARTUP") + if filename and os.path.isfile(filename): + self.execfile(filename) console.showprompt() # restart subprocess debugger if debug:

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str() on memoryview of bytearray failing on py3k
by Mark Hammond 07 Feb '09

07 Feb '09

Hi all, I'm not sure if the following is a bug I should report or simply an artifact of the implementation and/or simply the way things work on py3k: % py30 -c "str(memoryview(bytearray((1,2,3))))" Traceback (most recent call last): File "<string>", line 1, in <module> TypeError: __str__ returned non-string (type bytes) Cheers, Mark

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Are property descriptors intended to be immutable?
by Curt Hagenlocher 07 Feb '09

07 Feb '09

...because they're not quite :). Should I file this as a bug report? (I get the same results under 2.6 and 3.0.) PS C:\Program Files (x86)\CCP\EVE> C:\Python25\python.exe Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> class x(object): ... @property ... def foo(self): return 1 ... >>> inst = x() >>> inst.foo 1 >>> x.foo.__init__(lambda self: 2) >>> inst.foo 2 >>> ^Z -- Curt Hagenlocher curt(a)hagenlocher.org

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negative PyLong integer -> unsigned integer, TypeError or OverflowError?
by Lisandro Dalcin 07 Feb '09

07 Feb '09

While hacking on Cython to make it recognize 'size_t' as a pre-defined C integral type, I've found somethig that seems to be (pretty small) inconsistency. At Objects/longobject.c, you should see that in almost all cases OverflowError is raised when a unsigned integral is requested from a negative PyLong. However, See this one: int _PyLong_AsByteArray(PyLongObject* v, unsigned char* bytes, size_t n, int little_endian, int is_signed) { <...> if (!is_signed) { PyErr_SetString(PyExc_TypeError, "can't convert negative long to unsigned"); return -1; } <...> } Does it make sense to change that code to raise OverflowError? -- Lisandro Dalcín --------------- Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) PTLC - Güemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594

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Partial function application 'from the right'
by Ben North 06 Feb '09

06 Feb '09

Hi, Thanks for the further responses. Again, I'll try to summarise: Scott David Daniels pointed out an awkward interaction when chaining partial applications, such that it could become very unclear what was going to happen when the final function is called: > If you have: > def button(root, position, action=None, text='*', color=None): > ... > ... > blue_button = partial(button, my_root, color=(0,0,1)) > > Should partial_right(blue_button, 'red') change the color or the text? Calvin Spealman mentioned a previous patch of his which took the 'hole' approach, i.e.: > [...] my partial.skip patch, which allows the following usage: > > split_one = partial(str.split, partial.skip, 1) This would solve my original problems, and, continuing Scott's example, def on_clicked(...): ... _ = partial.skip clickable_blue_button = partial(blue_button, _, on_clicked) has a clear enough meaning I think: clickable_blue_button('top-left corner') = blue_button('top-left corner', on_clicked) = button(my_root, 'top-left corner', on_clicked, color=(0,0,1)) Calvin's idea/patch sounds good to me, then. Others also liked it. Could it be re-considered, instead of the partial_right idea? Ben.

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Summary of Python tracker Issues
by Python tracker 06 Feb '09

06 Feb '09

ACTIVITY SUMMARY (01/30/09 - 02/06/09) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue number. Do NOT respond to this message. 2364 open (+44) / 14630 closed (+16) / 16994 total (+60) Open issues with patches: 793 Average duration of open issues: 698 days. Median duration of open issues: 10 days. Open Issues Breakdown open 2341 (+44) pending 23 ( +0) Issues Created Or Reopened (61) _______________________________ "if 0: return" not raising SyntaxError 02/02/09 http://bugs.python.org/issue1875 reopened amaury.forgeotdarc patch, needs review Incorrect documentation for PyErr_BadInternalCall 01/30/09 CLOSED http://bugs.python.org/issue5112 created md5i 2.5.4.3 / test_posix failing on HPUX systems 01/30/09 http://bugs.python.org/issue5113 created andreask 2.5.4.3 / test_threading hangs 01/30/09 http://bugs.python.org/issue5114 created andreask Extend subprocess.kill to be able to kill process groups 01/31/09 http://bugs.python.org/issue5115 created erickt patch expose _CrtSetReportMode via the msvcrt module 01/31/09 http://bugs.python.org/issue5116 created mhammond patch, patch, needs review os.path.relpath problem with root directory 01/31/09 http://bugs.python.org/issue5117 created eliben patch '%.2f' % 2.545 doesn't round correctly 01/31/09 CLOSED http://bugs.python.org/issue5118 created Ultrasick wide character parameter handling in ctypes 01/31/09 CLOSED http://bugs.python.org/issue5119 created jaraco Disabling test_ttk_guionly on mac 01/31/09 CLOSED http://bugs.python.org/issue5120 created gpolo PyRun_InteractiveLoop disagrees with documentation? 02/01/09 http://bugs.python.org/issue5121 created bkuhn test_tcl and test_ttk_guionly don't like each other 02/01/09 http://bugs.python.org/issue5122 created gpolo patch Virus found in python-3.0.msi 02/01/09 CLOSED http://bugs.python.org/issue5123 created hlqyq IDLE - pasting text doesn't delete selection 02/01/09 http://bugs.python.org/issue5124 created weeble Strange locale problem with Python 3 02/01/09 http://bugs.python.org/issue5125 created retoo Space character returns false from isprintable() method 02/01/09 http://bugs.python.org/issue5126 created dlfjessup patch UnicodeEncodeError - I can't even see license 02/02/09 http://bugs.python.org/issue5127 created bupjae patch compileall: consider ctime 02/02/09 http://bugs.python.org/issue5128 created gagern patch indentation in IDLE 2.6 different from IDLE 2.5, 2.4 or vim 02/02/09 http://bugs.python.org/issue5129 created sy12 Obsolete reference to "unicode" in glossary 02/02/09 CLOSED http://bugs.python.org/issue5130 created MLModel pprint doesn't know how to print a set or a defaultdict 02/02/09 http://bugs.python.org/issue5131 created ncw distutils: libpython not found when building python extensions o 02/02/09 CLOSED http://bugs.python.org/issue5132 created dpeterson patch Error with Eval 02/02/09 CLOSED http://bugs.python.org/issue5133 created davidnicol Compiler warnings in sqlite module 02/02/09 http://bugs.python.org/issue5134 created rhettinger patch Expose simplegeneric function in functools module 02/02/09 http://bugs.python.org/issue5135 created pmoore patch, needs review Deprecating (and removing) "globalcall", "merge" and "globaleval 02/03/09 http://bugs.python.org/issue5136 created gpolo SystemError when __len__ returns a non-number 02/03/09 http://bugs.python.org/issue5137 created rhettinger File Reload for IDLE 02/03/09 http://bugs.python.org/issue5138 created rhettinger Add combinatoric counting functions to the math module. 02/03/09 http://bugs.python.org/issue5139 created rhettinger Some Built-in Functions entries in Library Manual are missing Pe 02/03/09 CLOSED http://bugs.python.org/issue5140 created rbtyod C API for appending to arrays 02/03/09 http://bugs.python.org/issue5141 created hniksic pdb feature request: Ability to skip standard lib modules and ot 02/03/09 http://bugs.python.org/issue5142 created orsenthil OS X: Py_SetProgramName argument has type char*; should be wchar 02/03/09 http://bugs.python.org/issue5143 created marketdickinson PySys_SetArgv has wrong documentation 02/03/09 CLOSED http://bugs.python.org/issue5144 created matejcik struct.calcsize('cd') returns 16 instead of 9 02/03/09 http://bugs.python.org/issue5145 created bgailer threading via uid method doesn't work in imaplib 02/03/09 http://bugs.python.org/issue5146 created abhishek MozillaCookieJar should not store leading whitespace in Magic he 02/03/09 http://bugs.python.org/issue5147 created aantony gzip.open breaks with 'U' flag 02/04/09 http://bugs.python.org/issue5148 created Chris.Barker patch, easy, needs review syntactic sugar: type coercion on pointer assignment 02/04/09 http://bugs.python.org/issue5149 created PeterASilva IDLE to support reindent.py 02/04/09 http://bugs.python.org/issue5150 created rhettinger extractall method for TarFile objects not setting owner:group on 02/04/09 CLOSED http://bugs.python.org/issue5151 created npatters Add a JSON-RPC module 02/04/09 CLOSED http://bugs.python.org/issue5152 created rhettinger Extra ) in optparse sample 02/04/09 CLOSED http://bugs.python.org/issue5153 created adamvan OSX broken poll testing doesn't work 02/04/09 http://bugs.python.org/issue5154 created bbangert Multiprocessing.Queue created by sub-process fails when used in 02/05/09 http://bugs.python.org/issue5155 created bbutler IDLE exits with UnicodeDecodeError on Ctrl+Space 02/05/09 http://bugs.python.org/issue5156 created scav os.stat('foo') succeds if 'foo.exe' exists on cygwin 02/05/09 CLOSED http://bugs.python.org/issue5157 created calandoa Document distutils 'depends' option for extensions 02/05/09 http://bugs.python.org/issue5158 created mbalsera patch Indicating packages to be loaded when a Tcl interpreter is creat 02/05/09 http://bugs.python.org/issue5159 created gpolo patch Intermittant segmentation fault with ctrl-c (threads and queues) 02/05/09 http://bugs.python.org/issue5160 created cgoldberg wrong paths for ctypes cleanup 02/06/09 http://bugs.python.org/issue5161 created nascheme multiprocessing cannot spawn child from a Windows service 02/06/09 http://bugs.python.org/issue5162 created orlenko tkinter.scrolledtext: new text is hidden after using insert() 02/06/09 http://bugs.python.org/issue5163 created ringhome backport distutils 3.x changes into 2.7 when appliabl 02/06/09 http://bugs.python.org/issue5164 created tarek os.rename and other raise WindowsError 02/06/09 CLOSED http://bugs.python.org/issue5165 created krisvale ElementTree and minidom don't prevent creation of not well-forme 02/06/09 http://bugs.python.org/issue5166 created ods distutils/test_customize_compiler fails on windows 02/06/09 CLOSED http://bugs.python.org/issue5167 created ocean-city patch shutil.copystat does not copy the "hidden" flag on windows 02/06/09 http://bugs.python.org/issue5168 created throbi Default hash not equal to id on AMD Sempron 02/06/09 http://bugs.python.org/issue5169 created chemacortes logging to file + encoding 02/06/09 http://bugs.python.org/issue5170 created shamilbi itertools.product docstring missing 'repeat' argument 02/06/09 http://bugs.python.org/issue5171 created marketdickinson Issues Now Closed (54) ______________________ Distutils add ability to skip build [Feature Request] 387 days http://bugs.python.org/issue1815 tarek Update version number in __init__.py 388 days http://bugs.python.org/issue1835 lemburg easy __import__ with fromlist=[''] causes double initialization of mo 356 days http://bugs.python.org/issue2090 brett.cannon distutils package_dir/package_data failure 248 days http://bugs.python.org/issue3031 tarek socket.socket.recv broken (unbearably slow) 154 days http://bugs.python.org/issue3766 samslists removed types from distutils.core [patch] 131 days http://bugs.python.org/issue3987 tarek patch python tests failure if builddir <> sourcedir 121 days http://bugs.python.org/issue4070 nascheme patch update SIG web pages 111 days http://bugs.python.org/issue4137 georg.brandl Separate build dir broken 108 days http://bugs.python.org/issue4151 nascheme patch Use a named tuple for sys.version_info 89 days http://bugs.python.org/issue4285 eric.smith patch, easy Python 2.6 fails to build with Py_NO_ENABLE_SHARED 62 days http://bugs.python.org/issue4494 loewis patch Wrong formatting of contributor list in About page 61 days http://bugs.python.org/issue4563 georg.brandl wsgiref package totally broken 28 days http://bugs.python.org/issue4718 benjamin.peterson patch Object allocation stress leads to segfault on RHEL 44 days http://bugs.python.org/issue4732 farshad cmp gone documentations 39 days http://bugs.python.org/issue4760 georg.brandl ctypes.util.find_library incorrectly documented 33 days http://bugs.python.org/issue4820 georg.brandl optparse: Callback example 1 is confusing 32 days http://bugs.python.org/issue4827 georg.brandl Allow buffering for HTTPResponse 26 days http://bugs.python.org/issue4879 krisvale patch, patch binascii.crc32() - document signed vs unsigned results 21 days http://bugs.python.org/issue4903 gregory.p.smith update distutils.README 18 days http://bugs.python.org/issue4987 tarek yield's documentation not updated 18 days http://bugs.python.org/issue4992 georg.brandl The Py_SetPythonHome C API function is undocumented 16 days http://bugs.python.org/issue5015 georg.brandl Thread.daemon docs 14 days http://bugs.python.org/issue5031 georg.brandl patch, needs review xml.parsers.expat make a dictionary which keys are broken if buf 8 days http://bugs.python.org/issue5036 benjamin.peterson Policy.DomainStrict in cookielib example code 11 days http://bugs.python.org/issue5059 georg.brandl Distutils should create install dir if needed 7 days http://bugs.python.org/issue5070 tarek Distutils should not fail if install dir is not in PYTHONPATH 7 days http://bugs.python.org/issue5071 tarek weird memory usage in multiprocessing module 2 days http://bugs.python.org/issue5092 LambertDW strange thing after call PyObject_CallMethod 7 days http://bugs.python.org/issue5096 georg.brandl sqlite3.Row class, handling duplicate column names resulting fro 7 days http://bugs.python.org/issue5105 georg.brandl Update Naming & Binding statement for 3.0 1 days http://bugs.python.org/issue5106 benjamin.peterson built-in open(..., encoding=vague_default) 6 days http://bugs.python.org/issue5107 georg.brandl Incorrect documentation for PyErr_BadInternalCall 1 days http://bugs.python.org/issue5112 benjamin.peterson '%.2f' % 2.545 doesn't round correctly 0 days http://bugs.python.org/issue5118 marketdickinson wide character parameter handling in ctypes 3 days http://bugs.python.org/issue5119 amaury.forgeotdarc Disabling test_ttk_guionly on mac 1 days http://bugs.python.org/issue5120 gpolo Virus found in python-3.0.msi 1 days http://bugs.python.org/issue5123 gpolo Obsolete reference to "unicode" in glossary 3 days http://bugs.python.org/issue5130 georg.brandl distutils: libpython not found when building python extensions o 3 days http://bugs.python.org/issue5132 tarek patch Error with Eval 0 days http://bugs.python.org/issue5133 ezio.melotti Some Built-in Functions entries in Library Manual are missing Pe 2 days http://bugs.python.org/issue5140 georg.brandl PySys_SetArgv has wrong documentation 2 days http://bugs.python.org/issue5144 georg.brandl extractall method for TarFile objects not setting owner:group on 0 days http://bugs.python.org/issue5151 lars.gustaebel Add a JSON-RPC module 1 days http://bugs.python.org/issue5152 rhettinger Extra ) in optparse sample 1 days http://bugs.python.org/issue5153 georg.brandl os.stat('foo') succeds if 'foo.exe' exists on cygwin 1 days http://bugs.python.org/issue5157 calandoa os.rename and other raise WindowsError 0 days http://bugs.python.org/issue5165 krisvale distutils/test_customize_compiler fails on windows 0 days http://bugs.python.org/issue5167 tarek patch Set option for subprocess in setup.py 1925 days http://bugs.python.org/issue831643 tarek list(obj) can swallow KeyboardInterrupt 199 days http://bugs.python.org/issue1242657 rhettinger patch dirutils.mkpath (verbose option does not work) 1255 days http://bugs.python.org/issue1276768 tarek Distutils bugfix: Read $AR from the environment/Makefile. 940 days http://bugs.python.org/issue1520877 tarek patch Text search gives bad count if called from variable trace 836 days http://bugs.python.org/issue1581476 gpolo patch Give Partial the ability to skip positionals 652 days http://bugs.python.org/issue1706256 jpe Top Issues Most Discussed (10) ______________________________ 35 Python on Windows disables all C runtime library assertions 36 days open http://bugs.python.org/issue4804 13 Expose simplegeneric function in functools module 4 days open http://bugs.python.org/issue5135 13 UnicodeEncodeError - I can't even see license 5 days open http://bugs.python.org/issue5127 13 Add Google's ipaddr.py to the stdlib 135 days open http://bugs.python.org/issue3959 10 Add combinatoric counting functions to the math module. 4 days open http://bugs.python.org/issue5139 10 xml.sax and xml.dom fetch DTDs by default 357 days open http://bugs.python.org/issue2124 9 compileall: consider ctime 4 days open http://bugs.python.org/issue5128 9 Faster opcode dispatch on gcc 42 days open http://bugs.python.org/issue4753 9 tkinter memory leak problem 612 days open http://bugs.python.org/issue1731706 8 Compiler warnings in sqlite module 4 days open http://bugs.python.org/issue5134

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