PyPy 1.4 released
=== PyPy 1.4: Ouroboros in practice === We're pleased to announce the 1.4 release of PyPy. This is a major breakthrough in our long journey, as PyPy 1.4 is the first PyPy release that can translate itself faster than CPython. Starting today, we are using PyPy more for our every-day development. So may you :) You can download it here: http://pypy.org/download.html What is PyPy PyPy is a very compliant Python interpreter, almost a drop-in replacement for CPython. It's fast (`pypy 1.4 and cpython 2.6`_ comparison) Among its new features, this release includes numerous performance improvements (which made fast self-hosting possible), a 64-bit JIT backend, as well as serious stabilization. As of now, we can consider the 32-bit and 64-bit linux versions of PyPy stable enough to run `in production`_. Numerous speed achievements are described on `our blog`_. Normalized speed charts comparing `pypy 1.4 and pypy 1.3`_ as well as `pypy 1.4 and cpython 2.6`_ are available on benchmark website. For the impatient: yes, we got a lot faster! More highlights === * PyPy's built-in Just-in-Time compiler is fully transparent and automatically generated; it now also has very reasonable memory requirements. The total memory used by a very complex and long-running process (translating PyPy itself) is within 1.5x to at most 2x the memory needed by CPython, for a speed-up of 2x. * More compact instances. All instances are as compact as if they had ``__slots__``. This can give programs a big gain in memory. (In the example of translation above, we already have carefully placed ``__slots__``, so there is no extra win.) * `Virtualenv support`_: now PyPy is fully compatible with virtualenv_: note that to use it, you need a recent version of virtualenv (= 1.5). * Faster (and JITted) regular expressions - huge boost in speeding up the `re` module. * Other speed improvements, like JITted calls to functions like map(). .. _virtualenv: http://pypi.python.org/pypi/virtualenv .. _`Virtualenv support`: http://morepypy.blogspot.com/2010/08/using-virtualenv-with-pypy.html .. _`in production`: http://morepypy.blogspot.com/2010/11/running-large-radio-telescope-software.html .. _`our blog`: http://morepypy.blogspot.com .. _`pypy 1.4 and pypy 1.3`: http://speed.pypy.org/comparison/?exe=1%2B41,1%2B172ben=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20env=1hor=falsebas=1%2B41chart=normal+bars .. _`pypy 1.4 and cpython 2.6`: http://speed.pypy.org/comparison/?exe=2%2B35,1%2B172ben=1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20env=1hor=falsebas=2%2B35chart=normal+bars Cheers, Carl Friedrich Bolz, Antonio Cuni, Maciej Fijalkowski, Amaury Forgeot d'Arc, Armin Rigo and the PyPy team -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Camelot 10.11.27 : leverage Python, QT and SQLAlchemy
Dear all, Camelot 10.11.27 has been released. Camelot is an open source RAD framework that leverages Python, Sqlalchemy and Qt to build database applications. Inspired by the Django admin interface, Camelot allows a developer to define the database model and Camelot will create the views. Homepage : www.python-camelot.com Demonstration video : http://www.youtube.com/watch?v=HZ5i257N6cc Regards, Erik New in this release : - tab based desktop - faster table view - improved search queries - much more dynamic field attributes : tooltip, background_color, editable, choices, prefix, suffix, arrow - SQLAlchemy 0.6.x support - Matplotlib integration - move to new style signal/slot connections - frozen columns in a table view -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Re: Newbie question about python garbage collection when keeping only a reference to an object's member
Some specialists tell that a href=http://bestfinance-blog.com;loan/a help people to live their own way, because they are able to feel free to buy necessary things. Moreover, various banks offer small business loan for young and old people. -- http://mail.python.org/mailman/listinfo/python-list
Re: Kind of plugin system
Am 26.11.2010 18:46, schrieb Gaëtan Podevijn: I need to get some informations from files stored on my filesystem, Flickr and Picasa. So the idea is to create a class (for instance, InformationsProvider) that provides common methods for those three sources, then, for each source, I create a class that inherits from InformationsProvider such as InformationsLocalProvider, InformationsFlickrProvider and InformationPicasaProvider. It is clearly needed because the method to get the informations is totally different for each source (the connection with flickr or picasa for exemple). However, I'd like, in the future, to be able to add new source and thus, just add a new class that implements the methods from Provider. The thing is, I'd like to add only one class, and that the rest of the application is able to use that class without really knowing how many class there are. I'd have something like : for each provider that exists: get the informations file and if I add a new .py that implements a new provider (say Delicious of GMail), the code above takes account of the new class. It must be dynamic. Hello Gaëtan, if all your classes are direct descendants of InformationsProvider you might get away with looping over InformationsProvider.__subclasses__(). See http://docs.python.org/library/stdtypes.html#class.__subclasses__ Greetings Rainer -- http://mail.python.org/mailman/listinfo/python-list
Re: Needed: Real-world examples for Python's Cooperative Multiple Inheritance
John Nagle na...@animats.com writes: On 11/26/2010 4:21 PM, Mark Wooding wrote: John Naglena...@animats.com writes: @This catches the case where two classed both inherit from, say threading.thread, each expecting to have a private thread. Why on earth would anyone do such a bizarre thing? If you want a private thread, then attach one as an attribute. Inheriting is simply madness. This must be from someone who hasn't used threads in Python. Wrong again. The usual way to write a thread in Python is to subclass threading.thread. The subclass provides a run function, which will be called from the new thread. Yes, it is. Does that conflict with what I wrote? No. If you want you class to have a private thread, make /another/ class to represent the behaviour of this private thread, and attach an instance of this to the first class. Or you can pass a closure or a bound method to the thread constructor. (That's probably cleaner, actually, but doesn't fit culturally.) If you stopped whining about how Python's object system might theoretically go wrong if you try to use it like it was C++ and started thinking about how to actually make effective use of the features it offers -- features which long predate Python, and have been thought about over many years, in languages such as Zetalisp, Common Lisp, Dylan, Scheme, and variants of Smalltalk -- you might got on much better. Ah, fanboys. Not exactly. I collect programming languages like some people collect postage stamps; it gives one a useful perspective. I mentioned those languages because they seem most historically relevant. Zetalisp's `Flavors' system introduced multiple inheritance; Common Lisp and Dylan fix the linearization properly (eventually culminating in the C3 linearization algorithm); Scheme has no standardized object system, but there are a number of -- mainly CLOS-like -- object systems available; and Smalltalk is both the classic dynamic object-oriented language and a single-dispatch contrast to the CLOS/Dylan generic-functions approach. Of those, I've written code in Common Lisp, Scheme, and Smalltalk. Most of the LISP variants really did objects very well; objects were an afterthought. Smalltalk went a bit too far in the other direction; the everything is an object mindset was overdoing it. CLOS actually does a remarkable integration job, bringing the existing types into the object system; but, yes, the seams are still visible, because you can't subclass some of the classes. Python is reasonably well balanced in the object area. Everything isn't an object. There are explicit classes, unlike the instance-copying model of Self and Javascript. Is that a major win? Self's prototype-based approach seems quite capable of expressing anything you might want to express with classes, and a few other things besides. (The implementation works by attempting to deduce class structures dynamically, so there's an isomorphism here, of a sort, but the dynamism would make inventing classes on the fly rather inconvenient.) There's a significant difference between Javascript and Self, by the way: a Self object can have multiple `parent' slots, consequently with a form of multiple inheritance, while Javascript is limited to single inheritance (unless you fake it up). However, multiple inheritance is something of a mess, as the original starter of this thread found when he tried to document how to use it. Python's object system certainly isn't ideal. The main problem that I see is that dynamic delegation with `super' is hideously inconvenient to use, which means that programmers will tend towards C++'s static delegation instead. The Python object construction protocol (__new__ and __init__) is somewhat simplistic; constructing instances of multiply inherited classes in general requires a somewhat complicated dance with *args and **kw arguments -- and you lose the ability to reject unknown arguments -- which again leads to programmers taking shortcuts. Most of the rest of the object system seems pretty sound to me. If you have real trouble writing documentation for a feature, it's usually because the feature is badly designed. It might be that it was misunderstood. There seem to be two obvious ways of learning a programming language. One is to try and interpret its concepts in terms of concepts that you already understand. This works, but you end up having to `translate' between the new language; if the translation is imperfect then you'll be confused or frustrated. There's a constant temptation to force one's existing conceptual framework onto the new language -- to use it as if it worked just like something else one is more familiar with that doesn't quite work `right'. The new language is `broken Blub with funny syntax'. The other is to try to understand it on its own terms. This is the harder road that leads to mastery. -- [mdw] --
Re: inverse of a matrix with Fraction entries
casevh cas...@gmail.com writes: I coded a quick matrix inversion function and measured running times using GMPY2 rational and floating point types. For the floating point tests, I used a precision of 1000 bits. With floating point values, the running time grew as n^3. With rational values, the running time grew as n^4*ln(n). Did you clear the denominators before you started? -- [mdw] -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python for a demonstration in historical linguistics
2010/11/27 Dax Bloom bloom@gmail.com:
On Nov 6, 6:41 am, Vlastimil Brom vlastimil.b...@gmail.com wrote:
2010/11/6 Dax Bloom bloom@gmail.com:
...
Rask_Grimm_re = ur[bdgptk]ʰ?
Rask_Grimm_dct = {ub:up, ubʰ: ub, ut: uþ, } # ...
def repl_fn(m):
return Rask_Grimm_dct.get(m.group(), m.group())
ie_txt = u bʰrāter ...
almost_germ_txt = re.sub(Rask_Grimm_re, repl_fn, ie_txt)
print u%s %s % (ie_txt, almost_germ_txt) # vowel changes etc. TBD
bʰrāter ... brāþer ...
hth,
vbr
...
Hello Vlastimil,
Could you please explain what the variables %s and % mean and how to
implement this part of the code in a working python program? I can't
fully appreciate Peter's quote on rules
Best regards,
Dax Bloom
Hi, the mentioned part is called string interpolation;
the last line is equivalent to
print u%s %s % (ie_txt, almost_germ_txt) # vowel changes etc. TBD
is equivalent to the simple string concatenation:
print ie_txt+ u + almost_germ_txt
see:
http://docs.python.org/library/stdtypes.html#string-formatting-operations
The values of the tuple (or eventually dict or another mapping) given
after the modulo operator % are inserted at the respective positions
(here %s) of the preceding string (or unicode);
some more advanced adjustments or conversions are also possible here,
which aren't needed in this simple case.
(There is also another string formatting mechanism in the newer
versions of python
http://docs.python.org/library/string.html#formatstrings
which may be more suitable for more complex tasks.)
The implementation depends on the rest of your program and the
input/output of the data, you wish to have (to be able to print the
output with rather non-trivial characters, you will need the unicode
enabled console (Idle is a basic one available with python).
Otherwise the sample is self contained and should be runnable as is;
you can add other needed items to Rask_Grimm_dct and all substrings
matching Rask_Grimm_re will be replaced in one pass.
You can also add a series of such replacements (re pattern and a dict
of a ie: germ pairs), of course only for context-free changes.
On the other hand, I have no simple idea how th deal with Verner's Law
and the like (even if you passed the accents in the PIE forms); well
besides a lexicographic approach, where you would have to identify the
word stems to decide the changes to be applied.
hth,
vbr
--
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Re: MATLAB to Python?
MATLABdude matlab.d...@mbnet.fi wrote: Also the values themselves are not identical compared to the values of the MATLAB program. In numerical analysis there is no such thing as identical. If they differ by 1.e-10 I'd call it close enough. The difference comes from differing numerical methods. Victor. -- Victor Eijkhout -- eijkhout at tacc utexas edu -- http://mail.python.org/mailman/listinfo/python-list
Convert QStingList to Python list
The following code generates a QStringList: fileNames = QFileDialog.getOpenFileNames(None,Chose raw file,.,) Printing it: print Files selected +QStringList(fileNames) Results in: TypeError: cannot concatenate 'str' and 'QStringList' objects Any idea how to convert a QStingList into a python list? pythonQtConv seems to come up in google but I've no idea how to import or invoke it. Thoughts? Pete -- http://www.petezilla.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert QStingList to Python list
Peter Chant wrote: The following code generates a QStringList: fileNames = QFileDialog.getOpenFileNames(None,Chose raw file,.,) Printing it: print Files selected +QStringList(fileNames) You say that fileNames already is a QStringList. Why are you trying to convert it to a QStringList then? Anyway, it wouldn't work with a python list either. Results in: TypeError: cannot concatenate 'str' and 'QStringList' objects Any idea how to convert a QStingList into a python list? pythonQtConv seems to come up in google but I've no idea how to import or invoke it. Thoughts? Try it out yourself in the interactive interpreter. Here's a sample session: files = QStringList([alpha.txt, beta.txt]) print files PyQt4.QtCore.QStringList object at 0x7f64cb73e668 print list(files) [PyQt4.QtCore.QString(u'alpha.txt'), PyQt4.QtCore.QString(u'beta.txt')] print [str(f) for f in files] ['alpha.txt', 'beta.txt'] print Selected files:, , .join(str(f) for f in files) Selected files: alpha.txt, beta.txt files = QStringList([uäöü.txt, beta.txt]) print Selected files:, , .join(str(f) for f in files) Selected files: Traceback (most recent call last): File stdin, line 1, in module File stdin, line 1, in genexpr UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-2: ordinal not in range(128) print Selected files:, , .join(unicode(f) for f in files) Selected files: äöü.txt, beta.txt Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: inverse of a matrix with Fraction entries
On Nov 27, 4:00 am, m...@distorted.org.uk (Mark Wooding) wrote: casevh cas...@gmail.com writes: I coded a quick matrix inversion function and measured running times using GMPY2 rational and floating point types. For the floating point tests, I used a precision of 1000 bits. With floating point values, the running time grew as n^3. With rational values, the running time grew as n^4*ln(n). Did you clear the denominators before you started? -- [mdw] No. It more of an exercise in illustrating the difference between arithmetic operations that have a constant running time versus those that have an n*ln(n) or worse running time. casevh -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert QStingList to Python list
Peter Otten wrote: Try it out yourself in the interactive interpreter. Here's a sample session: Peter, thanks. I've got some way to go with python and have only just started looking at Qt, your help has been very useful. Pete -- http://www.petezilla.co.uk -- http://mail.python.org/mailman/listinfo/python-list
RE: Kind of plugin system
I guess you could just define an entry-point in your source provider files that would return a specific instance of an InformationProvider class. This entry-point would be called by your main app (maybe at startup time or during an update phase). There are plenty of articles on the web about python plugins that could help you out, such as this one: http://wehart.blogspot.com/2009/01/python-plugin-frameworks.html -mab From: python-list-bounces+marc-andre.belzile=autodesk@python.org [mailto:python-list-bounces+marc-andre.belzile=autodesk@python.org] On Behalf Of Gaëtan Podevijn Sent: Friday, November 26, 2010 12:46 PM To: python-list@python.org Subject: Kind of plugin system Hello, Here is my problem. I need to get some informations from files stored on my filesystem, Flickr and Picasa. So the idea is to create a class (for instance, InformationsProvider) that provides common methods for those three sources, then, for each source, I create a class that inherits from InformationsProvider such as InformationsLocalProvider, InformationsFlickrProvider and InformationPicasaProvider. It is clearly needed because the method to get the informations is totally different for each source (the connection with flickr or picasa for exemple). However, I'd like, in the future, to be able to add new source and thus, just add a new class that implements the methods from Provider. The thing is, I'd like to add only one class, and that the rest of the application is able to use that class without really knowing how many class there are. I'd have something like : for each provider that exists: get the informations file and if I add a new .py that implements a new provider (say Delicious of GMail), the code above takes account of the new class. It must be dynamic. Could you help me with that ? I hope I was clear enough. Thanks a lot, Gaëtan -- http://mail.python.org/mailman/listinfo/python-list
Re: Scheme as a virtual machine?
On 2010-11-25 11:30:12 -0500, Mario S. Mommer said: In the realm of pure logic, ad hominems are logically invalid, period. We don't live in the realm of pure logic (whatever that would mean - pretty sure no human beings exist in the realm of pure logic, so there is no homo hominis to make an ad hominem argument against in the land of pure logic...) Here in the real world, no amount of the rigid application of pure logic is going to substitute for the very necessary social skill of inferring the motives of a participant to a debate. Again, not all ad hominem arguments are ad hominem fallacies. JH has repeatedly trumpeted the virtues of languages whose adoption by others brings him financial gain, and repeatedly made pejorative statements about other languages in newsgroups for these other langauges, in a clear attempt to drum up clients for his training consultancy. Pure logic alone won't help you here; the ordinary human social skill of inferring a person's motives does. warmest regards, Ralph -- Raffael Cavallaro -- http://mail.python.org/mailman/listinfo/python-list
Re: AIX 5.3 - Enabling Shared Library Support Vs Extensions
Hi Stefan, I followed your suggestion and configured LDFLAGS but the make step fails for another error now. My configuration options are as follows ./configure --enable-shared --disable-ipv6 --with-gcc=gcc CPPFLAGS=-I /opt/freeware/include -I /opt/freeware/include/readline -I /opt/freeware/include/ncurses LDFLAGS=-L. -L/usr/local/lib Below is the transcript from the make step. ++ running build running build_ext ldd: /lib/libreadline.a: File is an archive. INFO: Can't locate Tcl/Tk libs and/or headers building '_struct' extension gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I. -I/u01/home/apli/wm/GDD/Python-2.6.6/./Include -I. -IInclude -I./Include -I/opt/freeware/include -I/opt/freeware/include/readline -I/opt/freeware/include/ncurses -I/usr/local/include -I/u01/home/apli/wm/GDD/Python-2.6.6/Include -I/u01/home/apli/wm/GDD/Python-2.6.6 -c /u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.c -o build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.o ./Modules/ld_so_aix gcc -pthread -bI:Modules/python.exp -L. -L/usr/local/lib build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.o -L. -L/usr/local/lib -lpython2.6 -o build/lib.aix-5.3-2.6/_struct.so *Fatal Python error: Interpreter not initialized (version mismatch?)* *make: 1254-059 The signal code from the last command is 6.* ++ The last command that i see above (ld_so_aix) seems to have completed as the file _struct.so exists after this command and hence I am not sure which step is failing. There is no other Python version on my machine. Please guide. On Thu, Nov 25, 2010 at 3:41 PM, Stefan Krah stefan-use...@bytereef.orgwrote: Anurag Chourasia anurag.choura...@gmail.com wrote: When I configure python to enable shared libraries, none of the extensions are getting built during the make step due to this error. building 'cStringIO' extension gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I. -I/u01/home/apli/wm/GDD/Python-2.6.6/./Include -I. -IInclude -I./Include -I/opt/freeware/include -I/opt/freeware/include/readline -I/opt/freeware/include/ncurses -I/usr/local/include -I/u01/home/apli/wm/GDD/Python-2.6.6/Include -I/u01/home/apli/wm/GDD/Python-2.6.6 -c /u01/home/apli/wm/GDD/Python-2.6.6/Modules/cStringIO.c -o build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/cStringIO.o ./Modules/ld_so_aix gcc -pthread -bI:Modules/python.exp build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/cStringIO.o -L/usr/local/lib *-lpython2.6* -o build/lib.aix-5.3-2.6/cStringIO.so Try these flags: -L. -L/usr/local/lib If this solves the problem and the issue is also present in Python-2.7, you should report a bug at http://bugs.python.org/ . Stefan Krah -- http://mail.python.org/mailman/listinfo/python-list
Python make fails with error Fatal Python error: Interpreter not initialized (version mismatch?)
Hi All, During the make step of python, I am encountering a weird error. This is on AIX 5.3 using gcc as the compiler. My configuration options are as follows ./configure --enable-shared --disable-ipv6 --with-gcc=gcc CPPFLAGS=-I /opt/freeware/include -I /opt/freeware/include/readline -I /opt/freeware/include/ncurses LDFLAGS=-L. -L/usr/local/lib Below is the transcript from the make step. ++ running build running build_ext ldd: /lib/libreadline.a: File is an archive. INFO: Can't locate Tcl/Tk libs and/or headers building '_struct' extension gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I. -I/u01/home/apli/wm/GDD/Python-2.6.6/./Include -I. -IInclude -I./Include -I/opt/freeware/include -I/opt/freeware/include/readline -I/opt/freeware/include/ncurses -I/usr/local/include -I/u01/home/apli/wm/GDD/Python-2.6.6/Include -I/u01/home/apli/wm/GDD/Python-2.6.6 -c /u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.c -o build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.o ./Modules/ld_so_aix gcc -pthread -bI:Modules/python.exp -L. -L/usr/local/lib build/temp.aix-5.3-2.6/u01/home/apli/wm/GDD/Python-2.6.6/Modules/_struct.o -L. -L/usr/local/lib -lpython2.6 -o build/lib.aix-5.3-2.6/_struct.so *Fatal Python error: Interpreter not initialized (version mismatch?)* *make: 1254-059 The signal code from the last command is 6.* ++ The last command that i see above (ld_so_aix) seems to have completed as the file _struct.so exists after this command and hence I am not sure which step is failing. There is no other Python version on my machine. Please guide. -- http://mail.python.org/mailman/listinfo/python-list
What's wrong with my logging configuration
Hello,
I am using python logging and as of today it stopped working. Here is
my program:
#!/usr/bin/env python
import base64
import getpass
import httplib
import logging
import logging.config
import sys
import urlparse
logging.config.fileConfig('logging.config')
logger = logging.getLogger(sys.argv[0])
def main():
from optparse import OptionParser
usage = '%prog -u user [options] url'
parser = OptionParser(usage=usage)
parser.add_option('-u', '--user',
help='The user that will be authenticated')
(options, args) = parser.parse_args()
if len(args) != 1:
logger.error('Please provide a url')
sys.exit(1)
url = args[0]
if not options.user:
logger.error('Please provide a user')
sys.exit(2)
password = getpass.getpass('Password: ')
if __name__ == '__main__':
main()
Here is my logging.config:
[loggers]
keys=root
[handlers]
keys=console,file
[formatters]
keys=consolefmt,filefmt
[formatter_consolefmt]
format=%(name)-12s: %(levelname)-8s %(message)s
class=logging.Formatter
[formatter_filefmt]
format=%(asctime)s %(name)-12s %(levelname)-8s %(message)s
datefmt=%d/%m/%Y %H:%M:%S
[handler_console]
class=StreamHandler
level=INFO
formatter=consolefmt
args=(sys.stdout,)
[handler_file]
class=FileHandler
level=DEBUG
formatter=filefmt
args=('dav.log', 'a')
[logger_root]
level=NOTSET
handlers=console,file
Yesterday, it was working and I have not touched it - logging has been
working for months. This morning it stopped working and I was
debugging it for half a day and I am clueless. It does not the errors
neither on the console nor in the log file.
I will appreciate any help! Thank you in advance!
Regards
Rambius
--
http://mail.python.org/mailman/listinfo/python-list
Re: What's wrong with my logging configuration
On Nov 27, 4:07 pm, rambius rambiusparkisan...@gmail.com wrote: Hello, I am using python logging and as of today it stopped working. Here is my program: I forgot to give my environment: $ uname -a Darwin arielmac.lan 10.5.0 Darwin Kernel Version 10.5.0: Fri Nov 5 23:20:39 PDT 2010; root:xnu-1504.9.17~1/RELEASE_I386 i386 $ python -V Python 2.6.6 Regards Rambius -- http://mail.python.org/mailman/listinfo/python-list
Re: What's wrong with my logging configuration
Hello,
I was able to reproduce the problem with even a smaller program:
#!/usr/bin/env python
import logging
import logging.config
logging.config.fileConfig('logging.config')
logger = logging.getLogger('test')
def main():
logger.fatal('test1')
import optparse
logger.fatal('test2')
if __name__ == '__main__':
main()
When I run this program the logger statement after 'import optparse'
does not appear. The first logger statement before optparse does
appear. Has anyone experienced similar behaviour?
Regards
Rambius
--
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Re: What's wrong with my logging configuration
rambius rambiusparkisan...@gmail.com writes: When I run this program the logger statement after 'import optparse' does not appear. The first logger statement before optparse does appear. Has anyone experienced similar behaviour? I use the same config file (from your first message) and your shorter program, and I see this output: = test: CRITICAL test1 test: CRITICAL test2 = -- \ “I have a large seashell collection, which I keep scattered on | `\the beaches all over the world. Maybe you've seen it.” —Steven | _o__) Wright | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: What's wrong with my logging configuration
Hello Ben, On what environment did you try it? On Nov 27, 5:09 pm, Ben Finney ben+pyt...@benfinney.id.au wrote: rambius rambiusparkisan...@gmail.com writes: When I run this program the logger statement after 'import optparse' does not appear. The first logger statement before optparse does appear. Has anyone experienced similar behaviour? I use the same config file (from your first message) and your shorter program, and I see this output: = test : CRITICAL test1 test : CRITICAL test2 = This is so strange. If I import optparse outside of main() it works. If I import it between the two logging statement, the second one does not appear. Regards Rambius -- http://mail.python.org/mailman/listinfo/python-list
Re: Matlab equivalent syntax in Python
On 2010-11-26 18:23 , Akand Islam wrote: On Nov 26, 3:50 pm, Cameron Simpsonc...@zip.com.au wrote: On 26Nov2010 13:15, Akand Islamsohel...@gmail.com wrote: | Thanks for your posting. Like, here is the following Matlab codes | which I am trying to transform into Python. Here you | will find profile clear, profile on, profile off, profile resume, | profile viewer, and drawnow syntaxes. So, what will be these | equivalents | in Python? I would start by looking at the profile python module: http://docs.python.org/library/profile.html#module-profile Cheers, -- Cameron Simpsonc...@zip.com.au DoD#743http://www.cskk.ezoshosting.com/cs/ Their are thre mistakes in this sentence. - Rob Ray DoD#3r...@linden.msvu.ca Dear Cameron Simpson, Thanks for co-operation. I have gone through the link, however, I am not much clear. Can you please show me some python syntaxes which contain Matlab like profile on.., drawnow.. and so forth? Perhaps you could explain what those MATLAB commands do. Not everyone here is familiar with MATLAB. For the most part, an API like profile on; profile off is inappropriate for the profile Python module. It profiles the times each function call takes, not each line. Turning it on and off doesn't make much sense. The API described in the above link is better for what it does. If you want to visualize the profile, you may want to try RunSnakeRun: http://www.vrplumber.com/programming/runsnakerun/ If you want line-by-line profiling, you may want to check out my package, line_profiler: http://pypi.python.org/pypi/line_profiler/ Again, we don't turn it on and off like you might do in MATLAB. Just follow the directions and give up trying to find a correspondence with the MATLAB commands. -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Needed: Real-world examples for Python's Cooperative Multiple Inheritance
On Fri, 26 Nov 2010 23:24:30 -0800, John Nagle wrote: On 11/26/2010 4:21 PM, Mark Wooding wrote: [...] @This catches the case where two classed both inherit from, say threading.thread, each expecting to have a private thread. Why on earth would anyone do such a bizarre thing? If you want a private thread, then attach one as an attribute. Inheriting is simply madness. This must be from someone who hasn't used threads in Python. The usual way to write a thread in Python is to subclass threading.thread. The subclass provides a run function, which will be called from the new thread. Wanting a private thread, and writing a thread, are not the same. Of course you have to subclass threading.thread to write a thread. But if you want a private thread, there's no need to subclass thread just to get one. You would add a thread as an attribute, exactly as you would add a list or a dict or an int as an attribute if you wanted a private list or dict or int. Trying to juggle access from *multiple* classes to a *private* thread doesn't seem sensible, which was Mark's point. If you stopped whining about how Python's object system might theoretically go wrong if you try to use it like it was C++ and started thinking about how to actually make effective use of the features it offers -- features which long predate Python, and have been thought about over many years, in languages such as Zetalisp, Common Lisp, Dylan, Scheme, and variants of Smalltalk -- you might got on much better. Ah, fanboys. Of those, I've written code in Common Lisp, Scheme, and Smalltalk. Most of the LISP variants really did objects very well; objects were an afterthought. Describing something as an afterthought is normally meant as a pejorative. To say that Lisp really did objects very well *and* that they were afterthoughts seems like a contradiction. Smalltalk went a bit too far in the other direction; the everything is an object mindset was overdoing it. Python is reasonably well balanced in the object area. Everything isn't an object. I don't understand what you mean by this. Can you give an example of a thing in Python that is not an object? There are explicit classes, unlike the instance-copying model of Self and Javascript. However, multiple inheritance is something of a mess, as the original starter of this thread found when he tried to document how to use it. If you have real trouble writing documentation for a feature, it's usually because the feature is badly designed. The problem isn't writing documentation for the feature, but coming up with real-world use-cases. The documentation for super and the MRO is extensive and detailed. It's also complicated, because multiple inheritance is complicated. But it seems that multiple inheritance might not be that useful outside of a small number of cases. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Comparing floats
I'm defining a class (Spam) of objects that are characterized by three parameters, A, B, C, where A and C are n-tuples of floats and B is an n*n tuple-of-tuples of floats. I'm defining a limited multiplication for these objects, like this: Spam(A, B, C) * Spam(D, E, F) = Spam(A, dot(B, E), F) if and only if C == D. (Here dot(B, E) represents the matrix multiplication of B and E). In other words, this multiplication is defined only for the case where the last parameter of the first object is equal to first parameter of the second object. An exception should be thrown if one attempts to multiply two objects that fail to meet this requirement. Therefore, to implement this multiplication operation I need to have a way to verify that the float tuples C and D are equal. Certainly, I want to do this in in a way that takes into account the fact machine computations with floats can produce small differences between numbers that are notionally the same. E.g. (in Python 2.6.1 at least): 49.0 * (1.0/49.0) 0.99989 1.0 == 49.0 * (1.0/49.0) False The only approach I know of is to pick some arbitrary tolerance epsilon (e.g. 1e-6) and declare floats x and y equal iff the absolute value of x - y is less than epsilon. Does the Python standard library provide any better methods for performing such comparisons? I understand that, in Python 2.7 and 3.x = 3.1, when the interactive shell displays a float it shows the shortest decimal fraction that rounds correctly back to the true binary value. Is there a way to access this rounding functionality from code that must be able to run under version 2.6? (The idea would be to implement float comparison as a comparison of the rounded versions of floats.) Absent these possibilities, does Python provide any standard value of epsilon for this purpose? TIA! ~kj -- http://mail.python.org/mailman/listinfo/python-list
Re: inverse of a matrix with Fraction entries
On Fri, 26 Nov 2010 19:21:47 -0800, casevh wrote: On Nov 26, 2:11 pm, Steven D'Aprano steve +comp.lang.pyt...@pearwood.info wrote: On Fri, 26 Nov 2010 12:54:12 -0800, John Nagle wrote: For ordinary number crunching, rational arithmetic is completely inappropriate. Why? -- Steven As you perform repeated calculations with rationals, the size of the values (usually) keep growing. (Where size is measured as the length of numerator and denominator.) The speed and memory requirements are no longer constant. You're not comparing apples with apples. You're comparing arbitrary precision calculations with fixed precision calculations. If you want fixed memory requirements, you should use fixed-precision rationals. Most rationals I know of have a method for limiting the denominator to a maximum value (even if not necessarily convenient). On the other hand, if you want infinite precision, there are floating point implementations that offer that too. How well do you think they perform relative to rationals? (Hint: what are the memory requirements for an infinite precision binary float equal to fraction(1, 3)? *wink*) Forth originally didn't offer floats, because there is nothing you can do with floats that can't be done slightly less conveniently but more accurately with a pair of integers treated as a rational. Floats, after all, *are* rationals, where the denominator is implied rather than explicit. I suspect that if rational arithmetic had been given half the attention that floating point arithmetic has been given, most of the performance difficulties would be significantly reduced. Perhaps not entirely eliminated, but I would expect that for a fixed precision calculation, we should have equivalent big-Oh behaviour, differing on the multiplicative factors. In any case, the real lesson of your benchmark is that infinite precision is quite costly, no matter how you implement it :) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparing floats
On 11/27/2010 5:55 PM, kj wrote: Therefore, to implement this multiplication operation I need to have a way to verify that the float tuples C and D are equal. I might try the average relative difference: sum(abs((i-j)/(i+j)) for i,j in zip(C,D))/n # assuming lengths constant Certainly, I want to do this in in a way that takes into account the fact machine computations with floats can produce small differences between numbers that are notionally the same. The problem is that the appropriate value may depend on the application and the source of the floats. If they are measured to 3 decimal places, you need a large value. If they are calculated, you need much smaller. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: What's wrong with my logging configuration
Hello, I found the culprit. Yesterday I added a file called copy.py. It clashed with the python built-in module copy and caused that nasty error. Regards Rambius -- http://mail.python.org/mailman/listinfo/python-list
Re: inverse of a matrix with Fraction entries
On Nov 27, 3:08 pm, Steven D'Aprano steve +comp.lang.pyt...@pearwood.info wrote: On Fri, 26 Nov 2010 19:21:47 -0800, casevh wrote: On Nov 26, 2:11 pm, Steven D'Aprano steve +comp.lang.pyt...@pearwood.info wrote: On Fri, 26 Nov 2010 12:54:12 -0800, John Nagle wrote: For ordinary number crunching, rational arithmetic is completely inappropriate. Why? -- Steven As you perform repeated calculations with rationals, the size of the values (usually) keep growing. (Where size is measured as the length of numerator and denominator.) The speed and memory requirements are no longer constant. You're not comparing apples with apples. You're comparing arbitrary precision calculations with fixed precision calculations. If you want fixed memory requirements, you should use fixed-precision rationals. Most rationals I know of have a method for limiting the denominator to a maximum value (even if not necessarily convenient). On the other hand, if you want infinite precision, there are floating point implementations that offer that too. How well do you think they perform relative to rationals? (Hint: what are the memory requirements for an infinite precision binary float equal to fraction(1, 3)? *wink*) Forth originally didn't offer floats, because there is nothing you can do with floats that can't be done slightly less conveniently but more accurately with a pair of integers treated as a rational. Floats, after all, *are* rationals, where the denominator is implied rather than explicit. I suspect that if rational arithmetic had been given half the attention that floating point arithmetic has been given, most of the performance difficulties would be significantly reduced. Perhaps not entirely eliminated, but I would expect that for a fixed precision calculation, we should have equivalent big-Oh behaviour, differing on the multiplicative factors. In any case, the real lesson of your benchmark is that infinite precision is quite costly, no matter how you implement it :) -- Steven I think most users are expecting infinite precision when they use rationals. Trying to explain limited precision rational arithmetic might be interesting. Knuth described floating-slash arithmetic that used a fixed number of bits for both the numerator and denominator and a rounding algorithm that prefers simple fractions versus more complex fractions. IIRC, the original paper was from the 1960s. casevh -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparing floats
Terry Reedy tjre...@udel.edu writes: On 11/27/2010 5:55 PM, kj wrote: Therefore, to implement this multiplication operation I need to have a way to verify that the float tuples C and D are equal. I might try the average relative difference: sum(abs((i-j)/(i+j)) for i,j in zip(C,D))/n # assuming lengths constant That'll throw an exception if i == -j. You could replace (i+j) with math.hypot(i, j) or abs(i)+abs(j) but it will still fail when i == j == 0. -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
Re: inverse of a matrix with Fraction entries
On Sat, 27 Nov 2010 15:44:38 -0800, casevh wrote: I think most users are expecting infinite precision when they use rationals. Trying to explain limited precision rational arithmetic might be interesting. Most users are expecting infinite precision decimals when they use floats, and get surprised and dismayed by things like these: sum([0.1]*10) == 1 False 0.1 + 1e50 + 0.1 - 1e50 0.0 a, b, c = 0.1, 0.7, 0.3 a*b + a*c == a*(b+c) False Trying to explain arithmetic on computers is interesting, no matter what you use. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: What's wrong with my logging configuration
rambius rambiusparkisan...@gmail.com writes: On what environment did you try it? I get the same results with both Python 2 and Python 3 on GNU+Linux: = $ python Python 2.6.6 (r266:84292, Oct 9 2010, 13:53:14) […] $ python3 Python 3.1.3rc1 (r313rc1:86453, Nov 14 2010, 05:49:40) […] = This is so strange. If I import optparse outside of main() it works. If I import it between the two logging statement, the second one does not appear. Troubleshooting questions: Is there a rogue module in your project tree that, by being named the same as one of the standard library modules, shadows that module? Does the same problem behaviour occur if you import some other module in place of ‘optparse’? Can you reduce the content of your ‘logging.config’ and still see the same problem behaviour (i.e. do you really have the minimum complete example yet)? What is the minimal config file that still results in the same behaviour for you? -- \ “Welchen Teil von ‘Gestalt’ verstehen Sie nicht? [What part of | `\‘gestalt’ don't you understand?]” —Karsten M. Self | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: What's wrong with my logging configuration
rambius rambiusparkisan...@gmail.com writes: I found the culprit. Yesterday I added a file called copy.py. It clashed with the python built-in module copy and caused that nasty error. You may be glad to know that newer versions of Python can distinguish absolute imports from relative imports, to address this very problem URL:http://www.python.org/dev/peps/pep-0328/. -- \“I don't accept the currently fashionable assertion that any | `\ view is automatically as worthy of respect as any equal and | _o__) opposite view.” —Douglas Adams | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparing floats
On Sat, 27 Nov 2010 22:55:10 +, kj wrote: [...] Therefore, to implement this multiplication operation I need to have a way to verify that the float tuples C and D are equal. That C and D are tuples of floats is irrelevant. The problem boils down to testing floats for equality. It's easy to test two floats for equality, that's exactly what == does, but two floats which should be equal might not be due to calculation errors. To work around this, we loosen the definition of equal to give some allowance for rounding errors. Unfortunately, you need to decide what you mean by two floats are equal, since that will depend on the semantics of your problem and data. There is no standard answer that applies everywhere. I suggest you leave it up to the user to decide what tolerance their data can support, and offer a sensible default for cases that they don't know or don't care. This might be useful for you, or at least give you some ideas: http://code.activestate.com/recipes/577124-approximately-equal/ [...] The only approach I know of is to pick some arbitrary tolerance epsilon (e.g. 1e-6) and declare floats x and y equal iff the absolute value of x - y is less than epsilon. The four basic approaches are: (1) Is the absolute difference between the values = some tolerance? (2) Is the relative difference between the values = some tolerance? (3) Round the two values to a fixed number of decimal places, then compare for equality. This is a variation on (1) above. (4) How many differences in the least significant bits of the two values do we accept? I understand that, in Python 2.7 and 3.x = 3.1, when the interactive shell displays a float it shows the shortest decimal fraction that rounds correctly back to the true binary value. Is there a way to access this rounding functionality from code that must be able to run under version 2.6? (The idea would be to implement float comparison as a comparison of the rounded versions of floats.) How do you expect to access code in the Python 2.7 interpreter from Python 2.6? If you have 2.7 available, just use 2.7 :) It is a standard, royalty-free algorithm that you can find on the Internet somewhere. Worst case, you could copy it from the Python 2.7 source code, re-write it in Python if need be, and distribute it in your own application. But I don't think it will help you, since it isn't dealing with the fundamental problem that: * equality between two floats is well-defined, but not useful * equality given some tolerance is useful, but not well-defined (there is no tolerance that is always best, and there is no general way to decide whether absolute or relative error is more important) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Needed: Real-world examples for Python's Cooperative Multiple Inheritance
On 11/27/2010 4:34 PM, Steven D'Aprano wrote: [...] The problem isn't writing documentation for the feature, but coming up with real-world use-cases. The documentation for super and the MRO is extensive and detailed. It's also complicated, because multiple inheritance is complicated. But it seems that multiple inheritance might not be that useful outside of a small number of cases. It isn't. Even inheritance itself isn't as useful as it at first appears, and composition turns out in practice to be much more useful. That goes double for multiple inheritance. regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 PyCon 2011 Atlanta March 9-17 http://us.pycon.org/ See Python Video! http://python.mirocommunity.org/ Holden Web LLC http://www.holdenweb.com/ -- http://mail.python.org/mailman/listinfo/python-list
ANJELINA JOLIE - KATE WINSLET HOT PICTURES AND PROFILES HERE
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Re: Matlab equivalent syntax in Python
On Nov 27, 4:38 pm, Robert Kern robert.k...@gmail.com wrote: On 2010-11-26 18:23 , Akand Islam wrote: On Nov 26, 3:50 pm, Cameron Simpsonc...@zip.com.au wrote: On 26Nov2010 13:15, Akand Islamsohel...@gmail.com wrote: | Thanks for your posting. Like, here is the following Matlab codes | which I am trying to transform into Python. Here you | will find profile clear, profile on, profile off, profile resume, | profile viewer, and drawnow syntaxes. So, what will be these | equivalents | in Python? I would start by looking at the profile python module: http://docs.python.org/library/profile.html#module-profile Cheers, -- Cameron Simpsonc...@zip.com.au DoD#743http://www.cskk.ezoshosting.com/cs/ Their are thre mistakes in this sentence. - Rob Ray DoD#3r...@linden.msvu.ca Dear Cameron Simpson, Thanks for co-operation. I have gone through the link, however, I am not much clear. Can you please show me some python syntaxes which contain Matlab like profile on.., drawnow.. and so forth? Perhaps you could explain what those MATLAB commands do. Not everyone here is familiar with MATLAB. For the most part, an API like profile on; profile off is inappropriate for the profile Python module. It profiles the times each function call takes, not each line. Turning it on and off doesn't make much sense. The API described in the above link is better for what it does. If you want to visualize the profile, you may want to try RunSnakeRun: http://www.vrplumber.com/programming/runsnakerun/ If you want line-by-line profiling, you may want to check out my package, line_profiler: http://pypi.python.org/pypi/line_profiler/ Again, we don't turn it on and off like you might do in MATLAB. Just follow the directions and give up trying to find a correspondence with the MATLAB commands. -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco Dear Robert Kern, I do appreciate your reply. Surely I will dig through your package. -- Akand -- http://mail.python.org/mailman/listinfo/python-list
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[RELEASED] Python 2.7.1
On behalf of the Python development team, I'm happy as a clam to announce the immediate availability of Python 2.7.1. 2.7 includes many features that were first released in Python 3.1. The faster io module, the new nested with statement syntax, improved float repr, set literals, dictionary views, and the memoryview object have been backported from 3.1. Other features include an ordered dictionary implementation, unittests improvements, a new sysconfig module, auto-numbering of fields in the str/unicode format method, and support for ttk Tile in Tkinter. For a more extensive list of changes in 2.7, see http://doc.python.org/dev/whatsnew/2.7.html or Misc/NEWS in the Python distribution. To download Python 2.7.1 visit: http://www.python.org/download/releases/2.7.1/ The 2.7.1 changelog is at: http://svn.python.org/projects/python/tags/r271/Misc/NEWS 2.7 documentation can be found at: http://docs.python.org/2.7/ This is a production release. Please report any bugs you find to the bug tracker: http://bugs.python.org/ Enjoy! -- Benjamin Peterson Release Manager benjamin at python.org (on behalf of the entire python-dev team and 2.7.1's contributors) -- http://mail.python.org/mailman/listinfo/python-list
[RELEASED] Python 3.1.3
On behalf of the Python development team, I'm happy as a lark to announce the third bugfix release for the Python 3.1 series, Python 3.1.3. This bug fix release features numerous bug fixes and documentation improvements over 3.1.2. The Python 3.1 version series focuses on the stabilization and optimization of the features and changes that Python 3.0 introduced. For example, the new I/O system has been rewritten in C for speed. File system APIs that use unicode strings now handle paths with undecodable bytes in them. Other features include an ordered dictionary implementation, a condensed syntax for nested with statements, and support for ttk Tile in Tkinter. For a more extensive list of changes in 3.1, see http://doc.python.org/3.1/whatsnew/3.1.html or Misc/NEWS in the Python distribution. This is a production release. To download Python 3.1.3 visit: http://www.python.org/download/releases/3.1.3/ A list of changes in 3.1.3 can be found here: http://svn.python.org/projects/python/tags/r313/Misc/NEWS The 3.1 documentation can be found at: http://docs.python.org/3.1 Bugs can always be reported to: http://bugs.python.org Enjoy! -- Benjamin Peterson Release Manager benjamin at python.org (on behalf of the entire python-dev team and 3.1.3's contributors) -- http://mail.python.org/mailman/listinfo/python-list
[issue10516] Add list.clear() and list.copy()
Changes by Eli Bendersky eli...@gmail.com: -- nosy: +eli.bendersky ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10521] str methods don't accept non-BMP fillchar on a narrow Unicode build
Ezio Melotti ezio.melo...@gmail.com added the comment:
I agree that s.center(char, n).encode('utf-8') should be the same on both the
builds -- even if their len() will be different -- for the following reasons:
1) the string will eventually be encoded, and if they the result is the same on
both builds, it will look the same too;
2) trying to keep the same len() will generate different results and it won't
work in case of odd width like 'foo'.center(surrogate_pair, 5) because you
can't put half surrogate.
--
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http://bugs.python.org/issue10521
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[issue10541] regrtest.py -T broken
Alexander Belopolsky belopol...@users.sourceforge.net added the comment: Apparently something in the test changes the cwd. Both of the following invocations work: $ ./python.exe `pwd`/Lib/test/regrtest.py -T -N test_urllib $ ./python.exe -m test.regrtest -T -N test_urllib I would suggest changing the coverage target in the Makefile. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10541 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Eli Bendersky eli...@gmail.com added the comment: Éric, good idea - I'll do it. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Eli Bendersky eli...@gmail.com added the comment: There's something weird going on with cmdoption... I've applied for subscription to the docs mailing list, but while I'm awaiting moderator approval, here's the brain-dump. Suppose this option description: .. program:: trace .. cmdoption:: -c, --count Blah blah blah And now this reference: This is a test long :option:`--count` and then short :option:`-c`, test. Only the -c gets linked to ..cmdoption, not --count. If I list --count before -c in ..cmdoption, then it's the other way around. What makes it kinda work (link both the long and short names) is: .. cmdoption:: -c --count Blah blah blah But this isn't standard (although it doesn't look too bad). Actually, the original listing (the short name first, then the long one) is customary in the library docs. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10242] unittest's assertItemsEqual() method makes too many assumptions about its input
Raymond Hettinger rhettin...@users.sourceforge.net added the comment: Applied in r86828. The output could still be made nicer, perhaps something along the lines of: expected 6, got 4: 'wand of fireballs' expected 2, got 7: 'ring of invisibility' . . . -- priority: high - normal resolution: - fixed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10242 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10544] yield expression inside generator expression does nothing
Raymond Hettinger rhettin...@users.sourceforge.net added the comment: Hmm, what an interesting and unexpected side-effect of the efforts to hide the loop induction variable. -- nosy: +rhettinger ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10544 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Eli Bendersky eli...@gmail.com added the comment: Objects/listobject.c has a static function named list_clear used internally. Is it possible to just expose this function as a clear() method? One problem is that it has this strange comment in the end: /* Never fails; the return value can be ignored. Note that there is no guarantee that the list is actually empty at this point, because XDECREF may have populated it again! */ However, looking at the code I'm not sure the list can be cleared any more than the function does, and it actually deallocates the ob_item field of the list. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10242] unittest's assertItemsEqual() method makes too many assumptions about its input
Raymond Hettinger rhettin...@users.sourceforge.net added the comment: Attaching possible code for nicer output. -- assignee: rhettinger - michael.foord resolution: fixed - Added file: http://bugs.python.org/file19833/nice_output.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10242 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Xuanji Li xua...@gmail.com added the comment: Hi, I'm also looking at listobject.c also... if we want list.clear() to behave exactly like del list[], we may be able to just call list_ass_slice on the list. Similarly for list.copy which should behave like a=l[:] -- nosy: +xuanji ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Eli Bendersky eli...@gmail.com added the comment: Hi, I'm also looking at listobject.c also... if we want list.clear() to behave exactly like del list[], we may be able to just call list_ass_slice on the list. Similarly for list.copy which should behave like a=l[:] Note that when executed to do 'del lst[:]' (i.e. with argument v set to 0 and ilow/ihigh to the maximal range of the list), list_ass_slice will just call list_clear anyway, which is a cue that this indeed is the right way to do it, despite the strange comment I mentioned in my message above. -- Added file: http://bugs.python.org/file19834/unnamed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___div dir=ltrbrdiv class=gmail_quoteblockquote class=gmail_quote style=margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex; br Hi, I#39;m also looking at listobject.c also... if we want list.clear() to behave exactly like del list[], we may be able to just call list_ass_slice on the list. Similarly for list.copy which should behave like a=l[:]br /blockquote/divbrNote that when executed to do #39;del lst[:]#39; (i.e. with argument v set to 0 and ilow/ihigh to the maximal range of the list), list_ass_slice will just call list_clear anyway, which is a cue that this indeed is the right way to do it, despite the strange comment I mentioned in my message above.br br/div ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Georg Brandl ge...@python.org added the comment: Yes, list_clear should be called, but no, it cannot be used directly because a method needs a PyObject* return value. So a wrapper method is needed that looks like listappend() does for list.append(). list_copy() will just look like list_slice() with the index fiddling removed. -- nosy: +georg.brandl ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10542] Py_UNICODE_NEXT and other macros for surrogates
Marc-Andre Lemburg m...@egenix.com added the comment: Raymond Hettinger wrote: Raymond Hettinger rhettin...@users.sourceforge.net added the comment: Mark, can you opine on this? Yes, I'll have a look later today. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10542 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10383] test_os leaks under Windows
Stefan Krah stefan-use...@bytereef.org added the comment: Fixed original leaks in r86804, r86806 and r86804. Fixed additional leaks in r86829. -- components: +Extension Modules -Library (Lib), Windows resolution: - fixed stage: - committed/rejected status: open - closed versions: +Python 2.7, Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10383 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Xuanji Li xua...@gmail.com added the comment: That's good if it's so... can you explain why list_clear doesn't guarantee that the list is empty? Why would XDECREF populate the list? I don't quite understand it. eli: are you writing a patch for this? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Éric Araujo mer...@netwok.org added the comment: I noticed too that the second form given in a cmdoption directive cannot be linked to from an option construct. The workaround looks like this: :option:`--long -l`. This uses a generic Sphinx (or reST) property: When using :role:`text thing`, “thing” will be given as argument to the role but “text” will be displayed. It’s very useful for references for example, if you don’t want title case in the middle of your sentence of if you need to rephrase the title: “Have a look at the :ref:`detailed explanation config-explanation`”. Even if it can be worked around, can you report this Sphinx bug? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Eli Bendersky eli...@gmail.com added the comment: Georg, Thanks. Of course it should be wrapped like the others :-) Xuanji, Yes, I will try to get in something preliminary today. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Eli Bendersky eli...@gmail.com added the comment: Éric, I sent an inquiry about this problem to the d...@python.org list. In the meantime, I will implement it with the workaround you suggest (I checked it works in this case too). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Eli Bendersky eli...@gmail.com added the comment:
Attaching a patch for list.clear():
1. Implements a new function in Objects/listobject.c named listclear() (to be
consistent with the other method functions)
2. listclear() is registered in list_methods and just calls list_clear(),
returning None
3. A documentation string is modeled after dict.clear(), but shaped a bit
differently to follow the conventions of other list method docs.
If this look fine to the more experienced devs, things left to do are:
1. Add tests
2. Implement the .copy() method in a similar manner + tests for it
Some random observations:
1. The naming of functions/methods could be made more consistent. See, for
example, list_reversed vs. listreverse.
2. The documentation style of list and dict methods is different for no
apparent reason:
help({}.pop) gives:
pop(...)
D.pop(k[,d]) - v, remove specified key and return the corresponding value.
If key is not found, d is returned if given, otherwise KeyError is raised
While help([].pop) gives:
pop(...)
L.pop([index]) - item -- remove and return item at index (default last).
Raises IndexError if list is empty or index is out of range.
Note the '--' which separates the signature from description in the list
version.
--
keywords: +patch
Added file: http://bugs.python.org/file19835/issue10516.1.patch
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[issue10516] Add list.clear() and list.copy()
Changes by Eli Bendersky eli...@gmail.com: Removed file: http://bugs.python.org/file19834/unnamed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10547] FreeBSD: wrong value for LDSHARED in sysconfig
New submission from Stefan Krah stefan-use...@bytereef.org:
On FreeBSD, the config variable LDSHARED contains the literal '${LDFLAGS}',
causing this failure in test_distutils:
'test_get_outputs (distutils.tests.test_build_ext.BuildExtTestCase) ... gcc: ':
No such file or directory
ERROR
The patch fixes the issue and all tests pass.
Benjamin, are you ok with the change for 2.7? I'm not sure why autoreconf
generated a bit of extra noise; I used version 2.65. Also, OpenBSD and
NetBSD should be affected as well.
--
components: Build
files: freebsd_ldshared.patch
keywords: needs review, patch
messages: 122525
nosy: benjamin.peterson, skrah
priority: normal
severity: normal
stage: patch review
status: open
title: FreeBSD: wrong value for LDSHARED in sysconfig
type: behavior
versions: Python 2.7
Added file: http://bugs.python.org/file19836/freebsd_ldshared.patch
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[issue10547] FreeBSD: wrong value for LDSHARED in sysconfig
Changes by Stefan Krah stefan-use...@bytereef.org: -- keywords: +buildbot -needs review, patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10547 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Eli Bendersky eli...@gmail.com added the comment: Attaching an updated patch for Doc/library/trace.rst in 3.2 Changed the formatting of command-line options per Éric's suggestion of using program/cmdoption/option combos (great idea Éric - it looks much better). -- Added file: http://bugs.python.org/file19837/issue9264.py32.2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9509] argparse FileType raises ugly exception for missing file
Steven Bethard steven.beth...@gmail.com added the comment: Tried to comment in Rietveld but it didn't work for some reason. Anyway, I think the argparse.py patch isn't good - changing the type error message to 'invalid %s value: %r details: %s' will change the behavior of a bunch of programs, and it's not clearly for the better. Instead, you should raise an ArgumentTypeError instead of a ValueError, and give it whatever message you want there. That is, let's keep this patch local to the FileType, and not touch the rest of argparse. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9509 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9509] argparse FileType raises ugly exception for missing file
SilentGhost michael.mischurow+...@gmail.com added the comment: Steven, I'm not sure why you're insisting on ArgumentTypeError, when it should be ArgumentError. The file name is not coerced into a different file type, but rather the error occurs when trying to use parameter passed. In any way, my patch is still available. Do you not like something about it? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9509 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Éric Araujo mer...@netwok.org added the comment:
Thanks for your work on this!
``dir/package/module.cover`` → :file:`{dir}/{package}/{module}.cover`
'' looks wrong.
``os.pathsep``: You can use :data:`os.pathsep` to get a link, I think.
+.. method:: CoverageResults.update(other)
FTR, there is a new way for doing such things: You can nest method directives
in a class directive block. See gettext.rst for an example. Your patch
needn’t change that now, not all docs have been updated, so it’s best to do as
you did and follow the style of the rest of the file. I propose to change it
after your patch is committed.
+..
Stray dots at the end of the file.
The doc uses one or two spaces inconsistently. I don’t know if it’s worth
changing.
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[issue10548] Error in setUp not reported as expectedFailure (unittest)
New submission from Michael Foord mich...@voidspace.org.uk: Reported by Konrad Delong. class MyTest(unittest.TestCase): def setUp(self): raise Exception @unittest.expectedFailure def testSomething(self): assert False, test method failed This code will report error, not expected failure. -- assignee: michael.foord components: Library (Lib) messages: 122530 nosy: michael.foord priority: normal severity: normal status: open title: Error in setUp not reported as expectedFailure (unittest) type: behavior versions: Python 2.7, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10548 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Eli Bendersky eli...@gmail.com added the comment: Attaching an updated patch following Éric's suggestions: * ``dir/package/module.cover`` -- FIXED * '' looks wrong -- FIXED to just * ``os.pathsep`` -- FIXED * method:: CoverageResults.update(other) -- OK, let's leave it for a separate issue. * Stray dots at the end of the file -- FIXED * The doc uses one or two spaces inconsistently. -- not 100% what you mean here, but I found inconsistent separation between paragraphs (sometimes 1 blank line, sometimes 2), and fixed it. If you meant something else, I can fix that too :) -- Added file: http://bugs.python.org/file19838/issue9264.py32.3.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10516] Add list.clear() and list.copy()
Changes by Eli Bendersky eli...@gmail.com: -- Removed message: http://bugs.python.org/msg122522 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Éric Araujo mer...@netwok.org added the comment: Duh, I forgot some words: The file uses one or two dots *after full stops* inconsistently. I don’t think you have to change that now, we can make it consistent later (or not, as it does not affect the output), as we do with line wrapping. Just keep it in mind for future patches :) Terry: I got no warnings when building the HTML and the output looks good. +1 on commit. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10531] write tilted text in turtle
Joe Metcalfe j.g.metca...@gmail.com added the comment: Turtle is built on top of Tk, which is currently at version 8.5 - this has no ability to rotate text. When Tk version 8.6 arrives it should be able to write rotated text (see http://mail.python.org/pipermail/tkinter-discuss/2010-November/002490.html) and turtle.py could be updated to take advantage of it. -- nosy: +Joe.Metcalfe ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10531 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10531] write tilted text in turtle
Changes by Joe Metcalfe j.g.metca...@gmail.com: -- versions: -Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10531 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4111] Add Systemtap/DTrace probes
Jesús Cea Avión j...@jcea.es added the comment: Some references to keep around: http://src.opensolaris.org/source/xref/jds/spec-files/trunk/patches/ http://src.opensolaris.org/source/xref/jds/spec-files/trunk/patches/Python26-07-dtrace.diff http://src.opensolaris.org/source/xref/jds/spec-files/trunk/patches/Python-07-dtrace.diff -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10549] help(cls1) breaks when cls1 has staticmethod(cls2) attribute
New submission from Milko Krachounov pyt...@milko.3mhz.net: If I make a class B, and add staticmethod(A) as an attribute when B is another class, help(B) breaks. The issue appears with Python 2.6.6, trunk, 3.1.3c1, and py3k SVN. Python 2.7 (trunk:86836, Nov 27 2010, 18:23:07) [GCC 4.4.5] on linux2 Type help, copyright, credits or license for more information. class A(object): ... pass ... class B(object): ... attr = staticmethod(A) ... help(B) Traceback (most recent call last): File stdin, line 1, in module File /home/milko/Среда/Python/trunk/Lib/site.py, line 453, in __call__ return pydoc.help(*args, **kwds) File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 1720, in __call__ self.help(request) File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 1767, in help else: doc(request, 'Help on %s:') File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 1508, in doc pager(render_doc(thing, title, forceload)) File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 1503, in render_doc return title % desc + '\n\n' + text.document(object, name) File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 327, in document if inspect.isclass(object): return self.docclass(*args) File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 1216, in docclass lambda t: t[1] == 'static method') File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 1162, in spill name, mod, object)) File /home/milko/Среда/Python/trunk/Lib/pydoc.py, line 327, in document if inspect.isclass(object): return self.docclass(*args) TypeError: docclass() takes at most 4 arguments (5 given) Python 3.2a4+ (py3k:86836, Nov 27 2010, 18:35:01) [GCC 4.4.5] on linux2 Type help, copyright, credits or license for more information. class A: ... pass ... class B: ... attr = staticmethod(A) ... help(B) Traceback (most recent call last): File stdin, line 1, in module File /home/milko/Среда/Python/py3k/Lib/site.py, line 447, in __call__ return pydoc.help(*args, **kwds) File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 1713, in __call__ self.help(request) File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 1760, in help else: doc(request, 'Help on %s:') File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 1504, in doc pager(render_doc(thing, title, forceload)) File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 1499, in render_doc return title % desc + '\n\n' + text.document(object, name) File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 319, in document if inspect.isclass(object): return self.docclass(*args) File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 1214, in docclass lambda t: t[1] == 'static method') File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 1159, in spill name, mod, object)) File /home/milko/Среда/Python/py3k/Lib/pydoc.py, line 319, in document if inspect.isclass(object): return self.docclass(*args) TypeError: docclass() takes at most 4 positional arguments (5 given) -- components: Library (Lib) messages: 122535 nosy: milko.krachounov priority: normal severity: normal status: open title: help(cls1) breaks when cls1 has staticmethod(cls2) attribute versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10549 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10549] help(cls1) breaks when cls1 has staticmethod(cls2) attribute
Alexander Belopolsky belopol...@users.sourceforge.net added the comment: Confirmed in py3k. -- assignee: - belopolsky nosy: +belopolsky stage: - needs patch type: - behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10549 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10499] Modular interpolation in configparser
Łukasz Langa luk...@langa.pl added the comment: Patch reposted here for review: http://codereview.appspot.com/3309043/ -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10499 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10549] help(cls1) breaks when cls1 has staticmethod(cls2) attribute
Alexander Belopolsky belopol...@users.sourceforge.net added the comment:
The fix is simple:
--- Lib/pydoc.py(revision 86824)
+++ Lib/pydoc.py(working copy)
@@ -1110,7 +1110,7 @@
result = result + self.section('FILE', file)
return result
-def docclass(self, object, name=None, mod=None):
+def docclass(self, object, name=None, mod=None, *ignored):
Produce text documentation for a given class object.
realname = object.__name__
name = name or realname
I think this is the right thing to do because HTMLDoc.docclass() has the
following signature.
def docclass(self, object, name=None, mod=None, funcs={}, classes={},
*ignored):
--
stage: needs patch - unit test needed
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[issue10549] help(cls1) breaks when cls1 has staticmethod(cls2) attribute
Changes by Éric Araujo mer...@netwok.org: -- nosy: +eric.araujo, ncoghlan, ron_adam versions: -Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10549 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10550] Windows: leak in test_concurrent_futures
New submission from Stefan Krah stefan-use...@bytereef.org: C:\Users\stefan\svn\py3k_64PCbuild\amd64\python_d.exe Lib\test\regrtest.py -R : test_concurrent_futures [1/1] test_concurrent_futures beginning 9 repetitions 123456789 . test_concurrent_futures leaked [6912, 6912, 6912, 6912] references, sum=27648 1 test failed: test_concurrent_futures [195615 refs] -- components: Extension Modules messages: 122539 nosy: skrah priority: normal severity: normal status: open title: Windows: leak in test_concurrent_futures type: resource usage versions: Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10550 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10520] Build with --enable-shared fails
Łukasz Langa luk...@langa.pl added the comment: Roumen's patch fixes a regression where readline extension would fail to build on Mac OS X 10.6.5. -- nosy: +lukasz.langa resolution: fixed - stage: - commit review status: closed - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10520 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10550] Windows: leak in test_concurrent_futures
Stefan Krah stefan-use...@bytereef.org added the comment: posixmodule_listdir.patch fixes a leak in test_macpath. test_concurrent_futures still leaks. -- keywords: +patch Added file: http://bugs.python.org/file19839/posixmodule_listdir.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10550 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10551] mimetypes reading from registry in windows completely broken
New submission from Kovid Goyal ko...@kovidgoyal.net:
Hi,
I am the primary developer of calibre (http:/calibre-ebook.com) and yesterday I
released an upgrade of calibre based on python 2.7. Here is a small sampling of
all the diverse errors that my users experienced, related to reading mimetypes
from the registry:
1. Permission denied if running from non privileged account
Traceback (most recent call last):
File site.py, line 103, in main
File site.py, line 84, in run_entry_point
File site-packages\calibre\__init__.py, line 31, in module
File mimetypes.py, line 344, in add_type
File mimetypes.py, line 355, in init
File mimetypes.py, line 261, in read_windows_registry
WindowsError: [Error 5] Acceso denegado (Access not allowed)
The fix for this is to trap WindowsError and ignore it in mimetypes.py
2. Mishandling of encoding of registry entries
Traceback (most recent call last):
File site.py, line 103, in main
File site.py, line 84, in run_entry_point
File site-packages\calibre\__init__.py, line 31, in module
File mimetypes.py, line 344, in add_type
File mimetypes.py, line 355, in init
File mimetypes.py, line 260, in read_windows_registry
File mimetypes.py, line 250, in enum_types
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe0 in position 0: invalid
continuation byte
The fix for this is to change
except UnicodeEncodeError
to
except ValueError
3. python -c import mimetypes; print mimetypes.guess_type('img.jpg')
('image/pjpeg', None)
Where the output should have been
(image/jpeg', None)
The fix for this is to load the registry entries before the default entris
defined in mimetypes.py
Of course, IMHO, the best possible fix is to simply remove the reading of
mimetypes from the registry. But that is up to whoever maintains this module.
Duplicate (less comprehensive) tickets ont his isuue in your traceker already
are: 9291, 10490, 104314
If the maintainer of this module is unable to fix these issues, let me know and
I will submit a patch, either removing _winreg or fixing the issues
individually.
--
components: Library (Lib)
messages: 122542
nosy: kovid
priority: normal
severity: normal
status: open
title: mimetypes reading from registry in windows completely broken
versions: Python 2.7
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[issue10550] Windows: leak in test_concurrent_futures
Changes by Stefan Krah stefan-use...@bytereef.org: -- nosy: +bquinlan ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10550 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10551] mimetypes reading from registry in windows completely broken
Ned Deily n...@acm.org added the comment: The first issue you note appears to be a duplicate of Issue10162, a fix for which should be available in the 2.7.1 maintenance release. The second issue appears to be a duplicate of Issue9291. Since that issue is still open, I suggest any further discussion be pursued there. You may want to add yourself to the nosy list of that issue. -- components: +Windows nosy: +brian.curtin, ned.deily resolution: - duplicate status: open - closed superseder: - mimetypes initialization fails on Windows because of non-Latin characters in registry ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10551 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10541] regrtest.py -T broken
Antoine Pitrou pit...@free.fr added the comment: `make coverage` is fine, you just have to use the -m test.regrtest form when running the tests. -- nosy: +pitrou resolution: - invalid status: open - pending ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10541 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10541] regrtest.py -T broken
Alexander Belopolsky belopol...@users.sourceforge.net added the comment: I would like to investigate this some more. In theory, regrtest should restore cwd before coverage results are written. -- status: pending - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10541 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10520] Build with --enable-shared fails
Barry A. Warsaw ba...@python.org added the comment: r86837 -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10520 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10537] OS X IDLE 2.7rc1 from 64-bit installer hangs when you paste something.
Ned Deily n...@acm.org added the comment: Regardless of the root cause, I really hate to see 2.7.1 go out with this unresolved. As it stands, IDLE was broken in the 2.7 64-bit OS X installer for 2.7 and, as it stands, is still broken. And whether it is an Apple Tk problem or not (which remains to be determined), there are workarounds that could be applied - like having a 32-bit-only IDLE built with Aqua Tk 8.4 as the 32-bit installers do. -- nosy: +benjamin.peterson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10537 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10521] str methods don't accept non-BMP fillchar on a narrow Unicode build
Terry J. Reedy tjre...@udel.edu added the comment: After reading the additional messages here and on a similar issue Alexander opened after this, I seem the point of wanting to make the difference between the two types of builds as transparent as sensibly possible. From that viewpoint, rejection of composed chars is not as bad because both types of builds act the same. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10521 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10552] Tools/unicode/gencodec.py error
New submission from Alexander Belopolsky belopol...@users.sourceforge.net: $ ../../python.exe gencodec.py MAPPINGS/VENDORS/MISC/ build/ converting APL-ISO-IR-68.TXT to build/apl_iso_ir_68.py and build/apl_iso_ir_68.mapping converting ATARIST.TXT to build/atarist.py and build/atarist.mapping converting CP1006.TXT to build/cp1006.py and build/cp1006.mapping converting CP424.TXT to build/cp424.py and build/cp424.mapping Traceback (most recent call last): File gencodec.py, line 421, in module convertdir(*sys.argv[1:]) File gencodec.py, line 391, in convertdir pymap(mappathname, map, dirprefix + codefile,name,comments) File gencodec.py, line 355, in pymap code = codegen(name,map,encodingname,comments) File gencodec.py, line 268, in codegen precisions=(4, 2)) File gencodec.py, line 152, in python_mapdef_code mappings = sorted(map.items()) TypeError: unorderable types: NoneType() int() It does appear to have been updated for 3.x: $ python2.7 gencodec.py MAPPINGS/VENDORS/MISC/ build/ Traceback (most recent call last): File gencodec.py, line 35, in module UNI_UNDEFINED = chr(0xFFFE) ValueError: chr() arg not in range(256) -- components: Demos and Tools messages: 122549 nosy: belopolsky, lemburg priority: normal severity: normal status: open title: Tools/unicode/gencodec.py error type: behavior versions: Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10552 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7962] Demo and Tools need to be tested and pruned
Changes by Alexander Belopolsky belopol...@users.sourceforge.net: -- dependencies: +Tools/unicode/gencodec.py error ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7962 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9763] Crashes upon run after syntax error encountered in OSX 10.5.8
Ned Deily n...@acm.org added the comment: Adding the nosy list from Issue6628 where this problem was originally reported. What's interesting about this is that IDLE 2.x does not exhibit this behavior, AFAICT, when using the same Apple Tk 8.4. As there are other odd behaviors with IDLE 3.x on OS X, I want to investigate this further. -- nosy: +brian89, ronaldoussoren ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9763 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue6628] IDLE freezes after encountering a syntax error
Ned Deily n...@acm.org added the comment: This issue was reported again in Issue9763; at the time, I overlooked your original report. As there is a more recent discussion of it over there, I am going to close this as a duplicate and add you to the nosy list there. -- resolution: - duplicate status: open - closed superseder: - Crashes upon run after syntax error encountered in OSX 10.5.8 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue6628 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10553] Add optimize argument to builtin compile() and byte-compilation modules
New submission from Georg Brandl ge...@python.org: This patch adds an optimize parameter to compile(), as discussed in http://mail.python.org/pipermail/python-ideas/2010-November/008784.html. I also needed to introduce two new C APIs. Better naming suggestions are welcome. -- components: Library (Lib) files: compile-optimize.diff keywords: patch messages: 122552 nosy: georg.brandl, krisvale priority: normal severity: normal status: open title: Add optimize argument to builtin compile() and byte-compilation modules type: feature request versions: Python 3.2 Added file: http://bugs.python.org/file19840/compile-optimize.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10553 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10107] Quitting IDLE on Mac doesn't save unsaved code
Ned Deily n...@acm.org added the comment: Considering the discussion on the idle-dev list back in October about this issue, I think this low-risk, high-benefit fix should be going into all three upcoming releases. -- nosy: +benjamin.peterson, georg.brandl priority: high - critical ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10107 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10554] Context managerment support for subprocess.Popen
New submission from Éric Araujo mer...@netwok.org: I propose that __enter__ and __exit__ be added to subprocess.Popen. __enter__ returns self, __exit__ closes open file descriptors. __exit__ could also do the same checks that __del__ does (and which I don’t entirely understand. See also os.popen (os._wrap_close). -- components: Library (Lib) keywords: easy messages: 122554 nosy: eric.araujo priority: normal severity: normal stage: needs patch status: open title: Context managerment support for subprocess.Popen type: feature request versions: Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10554 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10478] Ctrl-C locks up the interpreter
Antoine Pitrou pit...@free.fr added the comment: Here is a patch raising RuntimeError on reentrant calls to a buffered object. I haven't touched _pyio; I wonder how to do it without making it even slower. -- keywords: +patch Added file: http://bugs.python.org/file19841/reentrantio.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10478 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1731717] race condition in subprocess module
James Lamanna jlama...@gmail.com added the comment: stubbing out subprocess._cleanup does not work around the problem from this example on 2.6.5: import subprocess, signal subprocess._cleanup = lambda: None signal.signal(signal.SIGCLD, signal.SIG_IGN) subprocess.Popen(['echo','foo']).wait() ja...@hyla:~$ python tt.py foo Traceback (most recent call last): File tt.py, line 5, in module subprocess.Popen(['echo','foo']).wait() File /usr/lib/python2.6/subprocess.py, line 1170, in wait pid, sts = _eintr_retry_call(os.waitpid, self.pid, 0) File /usr/lib/python2.6/subprocess.py, line 465, in _eintr_retry_call return func(*args) OSError: [Errno 10] No child processes This bug still prevents subprocess from being used inside of a daemon where SIGCLD is being caught to reap zombie processes. -- nosy: +jlamanna ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1731717 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10478] Ctrl-C locks up the interpreter
Changes by Antoine Pitrou pit...@free.fr: -- stage: - patch review versions: +Python 2.7, Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10478 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3548] subprocess.pipe function
Éric Araujo mer...@netwok.org added the comment: pipe.patch looks interesting to me. I would replace **kwargs with a keyword-only argument named stderr, since that’s the only key used. This requires more tests and docs. -- nosy: +eric.araujo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3548 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9264] trace.py documentation is incomplete
Terry J. Reedy tjre...@udel.edu added the comment: Éric, please feel free to commit (and even grab Assigned To:) when you feel patch is ready. You can do final review better than me. -- versions: -Python 3.1 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
