Mailman 3 April 2006 - Python-Dev

Re: [Python-Dev] Adding functools.decorator
by Simon Belak April 30, 2006

April 30, 2006

Nick Coghlan wrote: > Some details that are up for discussion: > > - which of a function's special attributes should be copied/updated? > - should the __decorates__ and __decorator__ attributes be added? > > If people are happy with this idea, I can make sure it happens before > alpha 3. What about preserving decorated function's signature, like we do in TurboGears [1]? Cheers, Simon [1] http://trac.turbogears.org/turbogears/browser/trunk/turbogears/decorator.py

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rich comparisions and old-style classes
by Fredrik Lundh April 30, 2006

April 30, 2006

trying to come up with a more concise description of the rich comparision machinery for pyref.infogami.com, I stumbled upon an oddity that I cannot really explain: in the attached example below, why is the rich comparision machinery doing *four* attempts to use __eq__ in the old- class case? </F> $ more test.py class old: def __init__(self, name): self.name = name def __repr__(self): return self.name def __eq__(self, other): print "EQ", self, other return NotImplemented def __cmp__(self, other): print "CMP", self, other return 0 class new(object): def __init__(self, name): self.name = name def __repr__(self): return self.name def __eq__(self, other): print "EQ", self, other return NotImplemented def __cmp__(self, other): print "CMP", self, other return 0 a = old("A") b = old("B") print a == b a = new("A") b = new("B") print a == b $ python test.py EQ A B EQ B A EQ B A EQ A B CMP A B True EQ A B EQ B A CMP A B True

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draft of externally maintained packages PEP
by Brett Cannon April 30, 2006

April 30, 2006

here is the rough draft of the PEP for packages maintained externally from Python itself. There is some missing, though, that I would like help filling in. I don't know who to list as the contact person (i.e., the Python developer in charge of the code) for Expat, Optik or pysqlite. I know Greg Ward wrote Optik, but I don't know if he is still active at all (I saw AMK's email on Greg being busy). I also thought Gerhard Haering was in charge of pysqlite, but he has never responded to any emails about this topic. Maybe the responsibility should go to Anthony since I know he worked to get the package in and probably cares about keeping it updated? As for Expat (the parser), is that Fred? I also don't know what version of ctypes is in 2.5 . Thomas, can you tell me? Otherwise, I have cc:ed the people I do know who are in charge of some packages. Can you please look over your package information and let me know if you want anything changed? ------------------------------------------------------- PEP: XXX Title: Externally Maintained Packages Version: $Revision: 43251 $ Last-Modified: $Date: 2006-03-23 06:28:55 -0800 (Thu, 23 Mar 2006) $ Author: Brett Cannon <brett(a)python.org> Status: Active Type: Informational Content-Type: text/x-rst Created: XX-XXX-2006 Abstract ======== There are many great pieces of Python software developed outside of the Python standard library. Sometimes it makes sense to incorporate these externally maintained packages into the standard library in order to fill a gap in the tools provided by Python. But by having the packages maintained externally it means Python's developers do not have direct control over the packages. Some package developers prefer to have bug reports and patches go through them first instead of being directly applied by Python developers. This PEP is meant to record details of packages in the standard library. Specifically, it is meant to keep track of any specific maintenance needs for each package. It also is meant to allow people to know which version of a package is in which version of Python. Externally Maintained Packages ============================== Below is a list of modules/packages within Python that are externally maintained. Any special notes in terms of maintenance of the code within the Python code repository are mentioned. The section title is the name of the package as known outside of the Python standard library. The "standard library name" is what the package is named within Python. The "contact person" is the Python developer in charge of maintaining the package. The "synchronisation history" lists what external version of the package was included in each version of Python (if different from the previous version). ctypes ------ - Web page http://starship.python.net/crew/theller/ctypes/ - Standard library name ctypes - Contact person Thomas Heller - Synchronisation history * XXX (2.5) Bugs can be reported to either the Python tracker [#python-tracker]_ or the ctypes tracker [#ctypes-tracker]_ and assigned to Thomas Heller. ElementTree ----------- - Web page http://effbot.org/zone/element-index.htm - Standard library name xml.etree - Contact person Fredrik Lundh - Synchronisation history * 1.2.6 (2.5) Patches should not be directly applied to Python HEAD, but instead reported to the Python tracker [#python-tracker]_ (critical bug fixes are the exception). Bugs should also be reported to the Python tracker. Both bugs and patches should be assigned to Fredrik Lundh. Expat XML parser ---------------- - Web page http://www.libexpat.org/ - Standard library name N/A (this refers to the parser itself, and not the Python bindings) - Contact person XXX - Synchronisation history * 1.95.8 (2.4) * 1.95.7 (2.3) Optik ----- - Web site http://optik.sourceforge.net/ - Standard library name optparse - Contact person XXX - Synchronisation history * 1.5.1 (2.5) * 1.5a1 (2.4) * 1.4 (2.3) pysqlite -------- - Web site http://www.sqlite.org/ - Standard library name sqlite3 - Contact person XXX - Synchronisation history * 2.1.3 (2.5) References ========== .. [#python-tracker] Python tracker (http://sourceforge.net/tracker/?group_id=5470) .. [#ctypes-tracker] ctypes tracker (http://sourceforge.net/tracker/?group_id=71702) Copyright ========= This document has been placed in the public domain. .. Local Variables: mode: indented-text indent-tabs-mode: nil sentence-end-double-space: t fill-column: 70 coding: utf-8 End:

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Re: [Python-Dev] [Python-checkins] r45770 - in python/trunk:
by A.M. Kuchling April 30, 2006

April 30, 2006

On Fri, Apr 28, 2006 at 01:13:21AM +0200, thomas.wouters wrote: > - Warn-raise ImportWarning when importing would have picked up a directory > as package, if only it'd had an __init__.py. This swaps two tests (for > case-ness and __init__-ness), but case-test is not really more expensive, > and it's not in a speed-critical section. For the what's new, I'd like to clarify the purpose of this change. Is the plan to make __init__.py optional in subpackages in 2.6, and this warning is a first step toward that? Or is this just to improve the error reporting when a directory lacking an __init__.py is found, and no further changes will be in 2.6? --amk

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(hopefully) final draft of externally maintained code PEP
by Brett Cannon April 30, 2006

April 30, 2006

Only piece of info I am missing right now is who is in charge of expat. If no one steps forward I will just mark it as N/A. I would also like Gerhard to sign off on pysqlite section. Otherwise this PEP is finished and I will commit it once I get the info I need (or lack thereof) and Gerhard gives me an OK assuming no one else finds a problem with it. --------------------------------------------------------- PEP: XXX Title: Externally Maintained Packages Version: $Revision: 43251 $ Last-Modified: $Date: 2006-03-23 06:28:55 -0800 (Thu, 23 Mar 2006) $ Author: Brett Cannon <brett(a)python.org> Status: Active Type: Informational Content-Type: text/x-rst Created: XX-XXX-2006 Abstract ======== There are many great pieces of Python software developed outside of the Python standard library (aka, stdlib). Sometimes it makes sense to incorporate these externally maintained packages into the stdlib in order to fill a gap in the tools provided by Python. But by having the packages maintained externally it means Python's developers do not have direct control over the packages' evolution and maintenance. Some package developers prefer to have bug reports and patches go through them first instead of being directly applied to Python's repository. This PEP is meant to record details of packages in the stdlib that are maintained outside of Python's repository. Specifically, it is meant to keep track of any specific maintenance needs for each package. It also is meant to allow people to know which version of a package is released with which version of Python. Externally Maintained Packages ============================== The section title is the name of the package as known outside of the Python standard library. The "standard library name" is what the package is named within Python. The "contact person" is the Python developer in charge of maintaining the package. The "synchronisation history" lists what external version of the package was included in each version of Python (if different from the previous Python release). ctypes ------ - Web page http://starship.python.net/crew/theller/ctypes/ - Standard library name ctypes - Contact person Thomas Heller - Synchronisation history * 0.9.9.6 (2.5) Bugs can be reported to either the Python tracker [#python-tracker]_ or the ctypes tracker [#ctypes-tracker]_ and assigned to Thomas Heller. ElementTree ----------- - Web page http://effbot.org/zone/element-index.htm - Standard library name xml.etree - Contact person Fredrik Lundh - Synchronisation history * 1.2.6 (2.5) Patches should not be directly applied to Python HEAD, but instead reported to the Python tracker [#python-tracker]_ (critical bug fixes are the exception). Bugs should also be reported to the Python tracker. Both bugs and patches should be assigned to Fredrik Lundh. Expat XML parser ---------------- - Web page http://www.libexpat.org/ - Standard library name N/A (this refers to the parser itself, and not the Python bindings) - Contact person XXX - Synchronisation history * 1.95.8 (2.4) * 1.95.7 (2.3) Optik ----- - Web site http://optik.sourceforge.net/ - Standard library name optparse - Contact person Greg Ward - Synchronisation history * 1.5.1 (2.5) * 1.5a1 (2.4) * 1.4 (2.3) pysqlite -------- - Web site http://www.sqlite.org/ - Standard library name sqlite3 - Contact person Gerhard H√§ring - Synchronisation history * 2.2.2 (2.5) Bugs should be reported to the pysqlite bug tracker [#pysqlite-tracker]_ as well as any patches that are not deemed critical. References ========== .. [#python-tracker] Python tracker (http://sourceforge.net/tracker/?group_id=5470) .. [#ctypes-tracker] ctypes tracker (http://sourceforge.net/tracker/?group_id=71702) .. [#pysqlite-tracker] pysqlite tracker (http://pysqlite.org/) Copyright ========= This document has been placed in the public domain. .. Local Variables: mode: indented-text indent-tabs-mode: nil sentence-end-double-space: t fill-column: 70 coding: utf-8 End:

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Google Summer of Code proposal: improvement of long int and adding new types/modules.
by Mateusz Rukowicz April 29, 2006

April 29, 2006

I wish to participate in Google Summer of Code as a python developer. I have few ideas, what would be improved and added to python. Since these changes and add-ons would be codded in C, and added to python-core and/or as modules,I am not sure, if you are willing to agree with these ideas. First of all, I think, it would be good idea to speed up long int implementation in python. Especially multiplying and converting radix-2^k to radix-10^l. It might be done, using much faster algorithms than already used, and transparently improve efficiency of multiplying and printing/reading big integers. Next thing I would add is multi precision floating point type to the core and fraction type, which in some cases highly improves operations, which would have to be done using floating point instead. Of course, math module will need update to support multi precision floating points, and with that, one could compute asin or any other function provided with math with precision limited by memory and time. It would be also good idea to add function which computes pi and exp with unlimited precision. And last thing - It would be nice to add some number-theory functions to math module (or new one), like prime-tests, factorizations etc. Every of above improvements would be coded in pure C, and without using external libraries, so portability of python won't be cracked, and no new dependencies will be added. I am waiting for your responses about my ideas, which of these you think are good, which poor etc. Main reason I am posting my question here is that, I am not sure, how much are you willing to change the core of the python. At the end, let my apologize for my poor English, I am trying to do my best. Best regards, Mateusz Rukowicz.

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Re: [Python-Dev] [Web-SIG] Adding wsgiref to stdlib
by Phillip J. Eby April 29, 2006

April 29, 2006

At 01:19 PM 4/28/2006 -0700, Guido van Rossum wrote: >It still looks like an application of WSGI, not part of a reference >implementation. Multiple apps looks like an advanced topic to me; more >something that the infrastructure (Apache server or whatever) ought to >take care of. I'm fine with a super-simple implementation that emphasizes the concept, not feature-richness. A simple dict-based implementation showcases both the wsgiref function for path shifting, and the idea of composing an application out of mini-applications. (The point is to demonstrate how people can compose WSGI applications *without* needing a framework.) But I don't think that this demo should be a prefix mapper; people doing more sophisticated routing can use Paste or Routes. If it's small enough, I'd say to add this mapper to wsgiref.util, or if Guido is strongly set against it being in the code, we should at least put it in the documentation as an example of how to use 'shift_path_info()' in wsgiref.util.

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Float formatting and #
by Georg Brandl April 29, 2006

April 29, 2006

Is there a reason why the "alternate format" isn't documented for float conversions in http://docs.python.org/lib/typesseq-strings.html ? '%#8.f' % 1.0 keeps the decimal point while '%8.f' % 1.0 drops it. Also, for %g the alternate form keeps trailing zeroes. While at it, I noticed a difference between %f and %g: '%.3f' % 1.123 is "1.123" while '%.3g' % 1.123 is "1.12". Is that intentional? Georg

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Weekly Python Patch/Bug Summary
by Kurt B. Kaiser April 29, 2006

April 29, 2006

Patch / Bug Summary ___________________ Patches : 378 open ( +7) / 3199 closed ( +4) / 3577 total (+11) Bugs : 901 open ( -7) / 5792 closed (+25) / 6693 total (+18) RFE : 214 open ( +3) / 214 closed ( +2) / 428 total ( +5) New / Reopened Patches ______________________ Allow PyArg_ParseTupleAndKeywords to unpack tuples (2006-04-22) http://python.org/sf/1474454 reopened by loewis Allow PyArg_ParseTupleAndKeywords to unpack tuples (2006-04-21) http://python.org/sf/1474454 opened by Roger Upole detect %zd format for PY_FORMAT_SIZE_T (2006-04-22) http://python.org/sf/1474907 opened by Brett Cannon New doctest option: +SKIP (2006-04-23) CLOSED http://python.org/sf/1475231 opened by Edward Loper patch fixing #1448060 (gettext.py bug) (2006-04-24) http://python.org/sf/1475523 opened by Thenault Sylvain IndentationError for unexpected indent (2006-04-24) http://python.org/sf/1475845 opened by Roger Miller Add help reference on Mac (2006-04-25) http://python.org/sf/1476578 opened by Bruce Sherwood __init__.py'less package import warnings (2006-04-27) http://python.org/sf/1477281 opened by Thomas Wouters Allow os.listdir to accept file names longer than MAX_PATH (2006-04-26) http://python.org/sf/1477350 opened by Roger Upole Fix doctest nit. (2006-04-28) http://python.org/sf/1478292 opened by Thomas Heller Picky floats (2006-04-28) http://python.org/sf/1478364 opened by Skip Montanaro Patches Closed ______________ Allow PyArg_ParseTupleAndKeywords to unpack tuples (2006-04-22) http://python.org/sf/1474454 closed by loewis Weak linking support for OSX (2006-04-17) http://python.org/sf/1471925 closed by ronaldoussoren test for broken poll at runtime (2006-04-17) http://python.org/sf/1471761 closed by ronaldoussoren New doctest option: +SKIP (2006-04-23) http://python.org/sf/1475231 closed by tim_one start testing strings > 2GB (2006-04-17) http://python.org/sf/1471578 closed by twouters New / Reopened Bugs ___________________ non-keyword argument following keyword (2006-04-23) http://python.org/sf/1474677 opened by George Yoshida pickling files works with protocol=2. (2006-04-22) http://python.org/sf/1474680 opened by Kirill Simonov Document os.path.join oddity on Windows (2006-04-23) CLOSED http://python.org/sf/1475009 opened by Miki Tebeka example code in what's new/sqlite3 docs (2006-04-23) CLOSED http://python.org/sf/1475080 opened by James Pryor Tkinter hangs in test_tcl (2006-04-23) http://python.org/sf/1475162 opened by Thomas Wouters Poorly worded description for socket.makefile() (2006-04-24) http://python.org/sf/1475554 opened by Roy Smith replacing obj.__dict__ with a subclass of dict (2006-04-24) http://python.org/sf/1475692 opened by ganges master SystemError in socket sendto (2006-04-25) CLOSED http://python.org/sf/1476111 opened by CyDefect Documentation date stuck on "5th April 2006" (2006-04-25) CLOSED http://python.org/sf/1476216 opened by Mat Martineau StringIO should implement __str__() (2006-04-25) CLOSED http://python.org/sf/1476356 opened by Dom Lachowicz Finish PEP 343 terminology cleanup (2006-04-26) http://python.org/sf/1476845 opened by Nick Coghlan Missing import line in example (2006-04-26) CLOSED http://python.org/sf/1477102 opened by Bruce Eckel Incorrect code in example (2006-04-26) CLOSED http://python.org/sf/1477140 opened by Bruce Eckel test_bsddb skipped -- Failed to load /home/shashi/Python-2.4 (2006-04-27) http://python.org/sf/1477450 opened by shashi test_ctypes: undefined symbol: XGetExtensionVersion (2006-04-28) http://python.org/sf/1478253 opened by balducci Invalid value returned by util.get_platform() on HP (2006-04-28) CLOSED http://python.org/sf/1478326 opened by Sébastien Sablé test_capi crashed -- thread.error: can't allocate lock (2006-04-28) CLOSED http://python.org/sf/1478400 opened by shashi datetime.datetime.fromtimestamp ValueError. Rounding error (2006-04-28) CLOSED http://python.org/sf/1478429 opened by Erwin Bonsma size limit exceeded for read() from network drive (2006-04-28) http://python.org/sf/1478529 opened by Mark Sheppard Bugs Closed ___________ IDLE does not start 2.4.3 (2006-04-17) http://python.org/sf/1471806 closed by egrimes TempFile can hang on Windows (2006-04-20) http://python.org/sf/1473760 closed by tim_one import module with .dll extension (2006-04-18) http://python.org/sf/1472566 closed by gbrandl Document os.path.join oddity on Windows (2006-04-23) http://python.org/sf/1475009 closed by gbrandl example code in what's new/sqlite3 docs (2006-04-23) http://python.org/sf/1475080 closed by akuchling interactive: no cursors ctrl-a/e... in 2.5a1/linux/debian (2006-04-18) http://python.org/sf/1472173 closed by twouters doctest mishandles exceptions raised within generators (2005-10-25) http://python.org/sf/1337990 closed by tim_one SystemError in socket sendto (2006-04-25) http://python.org/sf/1476111 closed by twouters string parameter to ioctl not null terminated, includes fix (2006-02-17) http://python.org/sf/1433877 closed by twouters Documentation date stuck on "5th April 2006" (2006-04-25) http://python.org/sf/1476216 closed by akuchling can't send files via ftp on my MacOS X 10.3.9 (2006-02-23) http://python.org/sf/1437614 closed by tjreedy StringIO should implement __str__() (2006-04-25) http://python.org/sf/1476356 closed by rhettinger Missing import line in example (2006-04-26) http://python.org/sf/1477102 closed by akuchling Incorrect code in example (2006-04-26) http://python.org/sf/1477140 closed by akuchling Math mode not well handled in \documentclass{howto} (2005-02-17) http://python.org/sf/1124692 closed by fdrake Windows non-MS compiler doc updates (2003-11-10) http://python.org/sf/839709 closed by fdrake "print statement" in libref index broken (2006-01-21) http://python.org/sf/1411674 closed by fdrake AF_UNIX sockets do not handle Linux-specific addressing (2003-07-02) http://python.org/sf/764437 closed by gbrandl The -m option to python does not search zip files (2005-08-02) http://python.org/sf/1250389 closed by pmoore Invalid value returned by util.get_platform() on HP (2006-04-28) http://python.org/sf/1478326 closed by gbrandl test_capi crashed -- thread.error: can't allocate lock (2006-04-28) http://python.org/sf/1478400 closed by gbrandl datetime.datetime.fromtimestamp ValueError. Rounding error (2006-04-28) http://python.org/sf/1478429 closed by gbrandl shutil.copytree debug message problem (2006-04-19) http://python.org/sf/1472949 closed by gbrandl urllib2.Request constructor to urllib.quote the url given (2006-04-20) http://python.org/sf/1473560 closed by gbrandl New / Reopened RFE __________________ feature requests for logging lib (2006-04-22) http://python.org/sf/1474577 opened by blaize rhodes feature requests for logging lib (2006-04-22) CLOSED http://python.org/sf/1474609 opened by blaize rhodes compute/doc %z os-indep., time.asctime_tz / _TZ (2006-04-24) http://python.org/sf/1475397 opened by kxroberto Add SeaMonkey to webbrowser.py (2006-04-25) CLOSED http://python.org/sf/1476166 opened by Oleg Broytmann Drop py.ico and pyc.ico (2006-04-27) http://python.org/sf/1477968 opened by Martin v. LÃ¶wis RFE Closed __________ feature requests for logging lib (2006-04-22) http://python.org/sf/1474609 closed by gbrandl Add SeaMonkey to webbrowser.py (2006-04-25) http://python.org/sf/1476166 closed by gbrandl

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Re: [Python-Dev] [Web-SIG] Adding wsgiref to stdlib
by Phillip J. Eby April 28, 2006

April 28, 2006

At 04:34 PM 4/28/2006 -0700, Titus Brown wrote: >Hi, Phillip, > >I'm getting this error when I run the tests, with both Python 2.3 and >2.4: > >====================================================================== >FAIL: testHeaderFormats (wsgiref.tests.test_handlers.HandlerTests) >---------------------------------------------------------------------- >Traceback (most recent call last): > File "/disk/u/t/dev/misc/wsgiref/src/wsgiref/tests/test_handlers.py", > line 205, in testHeaderFormats > (stdpat%(version,sw), h.stdout.getvalue()) >AssertionError: ('HTTP/1.0 200 OK\\r\\nDate: \\w{3} \\w{3} [ 0123]\\d >\\d\\d:\\d\\d:\\d\\d \\d{4}\\r\\nServer: FooBar/1.0\r\nContent-Length: >0\\r\\n\\r\\n', 'HTTP/1.0 200 OK\r\nDate: Fri, 28 Apr 2006 23:28:11 >GMT\r\nServer: FooBar/1.0\r\nContent-Length: 0\r\n\r\n') > >---------------------------------------------------------------------- This is probably due to Guido's patch to make the Date: header more RFC compliant. I'll take a look at it this weekend. >On a separate note, what are you actually proposing to include? It'd be >good to remove the TODO list, for example, unless those are things To Be >Done before adding it into Python 2.5. Well, it looks like the "validate" bit will be going in, and we're talking about what to put in "router", so that'll take care of half the list right there. :) The other two items can wait, unless somebody wants to contribute them. >Will it be added as 'wsgi' or 'wsgiref? I assumed it would be wsgiref, which would allow compatibility with existing code that uses it. >I'd also personally suggest putting anything intended for common use >directly under the top level, i.e. > > wsgiref.WSGIServer > >vs > > wsgiref.simple_server.WSGIServer I'm against this, because it would force the handlers and simple_server modules to be imported, even for programs not using them. >And, finally, is there any documentation? Only the docstrings. Contributions are more than welcome.

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