the official way of printing unicode strings

Hello, in Python (contrary to Perl, for instance) there is one way to do common tasks. Could somebody explain me what is the official python way of printing unicode strings? I tried to do this such way: s = uStanisław Lem print u.encode('utf-8') This works, but is very cumbersome. Then I tried

Re: stable algorithm with complexity O(n)

1. Comparison sorts have n*ln(n) complexity - does not do 2. Counting sort has the complexity O(d), where d is domain (in our case n^2) - does not do. 3. Radix sorts have the complexity O(n*k), where k is number of bits in integer. (32?) There are 2 variants: a. most significant digit (MSD), b.

Re: 1 or 1/0 doesn't raise an exception

Let me just point out that unsuspecting people (like me) might rely on the whole expression to be evaluated and rely on exceptions being raised if needed. This happens when people assume something ;) Use a different construct if you want to catch error's, I don't understand how you could not

Re: Why %e not in time.strftime directives?

On Sat, Dec 13, 2008 at 11:50 PM, Tim Chase python.l...@tim.thechases.com wrote: Any special reasons? Because it is there (at least on my Debian box)? But not on windows :( import time time.strftime(%e) '' t...@rubbish:~$ python Python 2.5.2 (r252:60911, May 28 2008, 08:35:32)

Re: 1 or 1/0 doesn't raise an exception

En Sun, 14 Dec 2008 02:40:10 -0200, Benjamin Kaplan benjamin.kap...@case.edu escribió: On Sat, Dec 13, 2008 at 10:49 PM, Daniel Fetchinson fetchin...@googlemail.com wrote: Is it a feature that 1 or 1/0 returns 1 and doesn't raise a ZeroDivisionError? If so, what's the rationale?

Optimizing methods away or not?

I have a class with a method meant to verify internal program logic (not data supplied by the caller). Because it is time-consuming but optional, I treat it as a complex assertion statement, and optimize it away if __debug__ is false: class Parrot: def __init__(self, *args): print

[issue4654] os.path.realpath() get the wrong result

New submission from dirlt zhang_...@baidu.com: I found the problem when i install a small tool which I wrote on the each machine in the company.the problem is simplified as follows: there are three files 1./home/share/temp/a a regular file 2./home/share/a.lnk which is symbolic link to the

[issue4630] IDLE no longer respects .Xdefaults insertOffTime

Mark Summerfield m...@qtrac.eu added the comment: Although I stand by my criticism of IDLE not offering the option of switching off cursor blink, I've now discovered that the problem was with Fedora 10 no longer executing xrdb .Xdefaults; once I added that line to my .bash_profile the cursor

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: About the name: Java's Bignum has a 'significantBits' method, which apparently returns the position of the MSB (i.e., numbits - 1). GMP has mpz_sizeinbase; mpz_sizeinbase(n, 2) is almost the same as numbits, except that mpz_sizeinbase(0,

[issue3439] create a numbits() method for int and long types

Raymond Hettinger rhettin...@users.sourceforge.net added the comment: Perhaps n.bit_length() with an underscore. The name sounds good to my ear and sensibilities. ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: Perhaps n.bit_length() with an underscore. I thought I recalled Guido having a preference for float.fromhex over float.from_hex when that got implemented. But either spelling seems good to me. ___

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: I thought I recalled Guido having a preference for float.fromhex over Can't find anything to back this up. It looks like I'm just making this up. ___ Python tracker rep...@bugs.python.org

[issue3439] create a numbits() method for int and long types

Raymond Hettinger rhettin...@users.sourceforge.net added the comment: It was probably true. The issue is how well the words self-separate visually and whether an underscore would create a detrimental mental pause. So fromkeys() and fromhex() read fine and would feel awkward with an underscore.

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: Did you look at the O(lg n) algorithm yet? Any thoughts? So there are two places this could be applied: the int_numbits method and _PyLong_NumBits. I'd be quite surprised if this offered any noticeable speedup in either case. Might be

[issue4649] Fix a+b to a + b

Retro vinet...@gmail.com added the comment: What is recommended in PEP 8, you are engouraged to follow that; not you as a Python coder but you as a member of the Python community where PEP 8 is the coding style specification. Python's built-in modules have such a lovely coding style because they

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: Three files: (1) bit_length7.patch just does the numbits-bit_length renaming; otherwise it's the same as numbits-6b.patch. (2) bit_length7_opt.patch uses the fast bitcount method that Raymond pointed out. (3) bit_length_pybench.patch

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Added file: http://bugs.python.org/file12337/bit_length7_opt.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Added file: http://bugs.python.org/file12338/bit_length_pybench.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue4469] CVE-2008-5031 multiple integer overflows

Martin v. Löwis mar...@v.loewis.de added the comment: Backported r55839 and r61350, as r67726 -- nosy: +loewis resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4469

[issue3439] create a numbits() method for int and long types

Antoine Pitrou pit...@free.fr added the comment: Well, I don't think bit_length() warrants a specific test which will slow down the whole pybench suite. pybench tracks interpreter speed for common and generally useful operations, while I think bit_length() is only a niche method. --

[issue4446] Distutils Metadata Documentation Missing platforms Keyword

Martin v. Löwis mar...@v.loewis.de added the comment: Thanks for the patch. Committed for 2.5 as r67731; integration into the other branches still needs to happen. -- assignee: loewis - georg.brandl priority: release blocker - normal versions: -Python 2.5, Python 2.5.3

[issue4368] A bug in ncurses.h still exists in FreeBSD 4.9 - 4.11

Martin v. Löwis mar...@v.loewis.de added the comment: Thanks for the patch. Committed as r67732. -- nosy: +loewis resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4368

[issue4303] [2.5 regression] ctypes fails to build on arm-linux-gnu

Martin v. Löwis mar...@v.loewis.de added the comment: As the ARM buildbot is still down, we have no way of analysing or fixing this problem, so I'm closing this as won't fix. -- resolution: - wont fix status: open - closed ___ Python tracker

[issue4228] struct.pack('L', -1)

Martin v. Löwis mar...@v.loewis.de added the comment: Thanks for the patch. Committed (along with a test case) as r67733, in the 2.5 branch. Porting to the other branches still needs to happen. Armin, if you want to make these changes, please go ahead. -- priority: release blocker -

[issue4228] struct.pack('L', -1)

Changes by Martin v. Löwis mar...@v.loewis.de: -- priority: normal - deferred blocker ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4228 ___ ___

[issue3248] ScrolledText can't be placed in a PanedWindow

Martin v. Löwis mar...@v.loewis.de added the comment: Committed for 2.5 as r67735. It still needs to be applied to the other branches. -- priority: release blocker - deferred blocker ___ Python tracker rep...@bugs.python.org

[issue4071] ntpath.abspath fails for long str paths

Martin v. Löwis mar...@v.loewis.de added the comment: As it is apparently not clear what change exactly needs to be applied to 2.5, I'm declaring that this fix will not be backported. I would appreciate if somebody could summarize what still needs to be done, or (if nothing needs to be done),

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: Well, I don't think bit_length() warrants a specific test which will slow down the whole pybench suite. Me neither. It's a temporary patch to pybench, to establish whether it's worth applying optimizations to bit_length. I didn't intend

[issue1683] Thread local storage and PyGILState_* mucked up by os.fork()

Martin v. Löwis mar...@v.loewis.de added the comment: Committed fork-thread-patch-2 as r67736 into 2.5 branch. -- status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1683 ___

[issue2996] IDLE find in files output not formatted optimally

Martin v. Löwis mar...@v.loewis.de added the comment: I can't reproduce the problem. It works fine for me. -- nosy: +loewis priority: release blocker - normal ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue2996

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: Slightly improved optimized version. Added file: http://bugs.python.org/file12339/bit_length7_opt.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Removed file: http://bugs.python.org/file12337/bit_length7_opt.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: Added another test to pybench; it makes sense to consider cases where the input n is uniformly distributed in [0, 2**31) as well as cases where the output n.bit_length() is uniformly distributed in [0, 32). Added file:

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Removed file: http://bugs.python.org/file12338/bit_length_pybench.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue4342] (Tkinter) Please backport these

Martin v. Löwis mar...@v.loewis.de added the comment: I have backported r59654 as r67737. As indicated, the other patches are not suitable for backporting. -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org

[issue3106] speedup some comparisons

Antoine Pitrou pit...@free.fr added the comment: Here is a new patch without any dispatch shortcut in ceval.c, just optimizations in unicodeobject.c and longobject.c. Net result on pybench: Test minimum run-timeaverage run-time

[issue3767] tkColorChooser may fail if no color is selected

Martin v. Löwis mar...@v.loewis.de added the comment: Thanks for the patch. Committed tkColorChooser.diff as r67738 in the 2.5 branch. Applying this to the other branches still needs to be done. -- assignee: - loewis nosy: +loewis priority: release blocker - deferred blocker

[issue1040026] os.times() is bogus

Martin v. Löwis mar...@v.loewis.de added the comment: Committed os_times5.patch into 2.5 branch as r67739 Applying this to the other branches still needs to be done. -- assignee: gregory.p.smith - loewis priority: release blocker - deferred blocker resolution: - accepted

[issue1040026] os.times() is bogus

Changes by Martin v. Löwis mar...@v.loewis.de: Removed file: http://bugs.python.org/file9514/os_times2.PATCH ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1040026 ___

[issue1040026] os.times() is bogus

Changes by Martin v. Löwis mar...@v.loewis.de: Removed file: http://bugs.python.org/file9518/os_times3.PATCH ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1040026 ___

[issue1040026] os.times() is bogus

Changes by Martin v. Löwis mar...@v.loewis.de: Removed file: http://bugs.python.org/file9541/posixmodule.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1040026 ___

[issue1040026] os.times() is bogus

Changes by Martin v. Löwis mar...@v.loewis.de: Removed file: http://bugs.python.org/file9542/test_posix5.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1040026 ___

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: I think I've found the happy medium: bit_length7_opt2.patch achieves nearly the same performance gains as bit_length7_opt.patch (around 7% for uniformly-distributed inputs, 3.5% for uniformly-distributed outputs), but is much more

[issue1706039] Added clearerr() to clear EOF state

Martin v. Löwis mar...@v.loewis.de added the comment: Thanks for the patch. Committed into the 2.5 branch as r67740. This still needs to be applied to the other branches. -- priority: release blocker - deferred blocker ___ Python tracker

[issue3106] speedup some comparisons

Raymond Hettinger rhettin...@users.sourceforge.net added the comment: If there's not a hurry, would like to review this a bit more when I get back early next week. ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3106

[issue3439] create a numbits() method for int and long types

Raymond Hettinger rhettin...@users.sourceforge.net added the comment: If there's not a hurry, would like to review this a bit more when I get back early next week. ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439

[issue4649] Fix a+b to a + b

Guido van Rossum gu...@python.org added the comment: Retro, you are blowing this way out of proportion. Style guidelines are not absolute rules that must be followed at all cost, and there are always exceptions. You need to have a lot of experience before you can claim with certainty that a

[issue4651] getopt need re-factor...

Guido van Rossum gu...@python.org added the comment: Don't open a new issue to point out that you just opened a new issue. About removing getopt.error: if it's in 3.0, it needs to stay or be properly deprecated. 3.1 has to be backwards compatible with 3.0 for sure. -- nosy:

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Removed file: http://bugs.python.org/file12332/numbits-6b.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue3106] speedup some comparisons

Antoine Pitrou pit...@free.fr added the comment: If there's not a hurry, would like to review this a bit more when I get back early next week. No pb! ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3106

[issue3439] create a numbits() method for int and long types

Fredrik Johansson fredrik.johans...@gmail.com added the comment: FYI, Brent Zimmermann call this function nbits(n) in Modern Computer Arithmetic: http://www.loria.fr/~zimmerma/mca/pub226.html I don't really care much about the name though. In the documentation, should same value as

[issue4574] reading UTF16-encoded text file crashes if \r on 64-char boundary

Antoine Pitrou pit...@free.fr added the comment: A couple of suggestions: - if IncrementalNewlineDecoder gets an encoding argument, it can also instantiate the decoder itself; that way the API is a bit simpler - to encode '\r' without the BOM, you can e.g. use an incremental encoder and encode

[issue3439] create a numbits() method for int and long types

Mark Dickinson dicki...@gmail.com added the comment: In the documentation, should same value as ``x.bit_length`` not be same value as ``x.bit_length()``? Yes, of course. Thanks! Added file: http://bugs.python.org/file12343/bit_length7_opt2.patch ___

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Removed file: http://bugs.python.org/file12342/bit_length7_opt2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue3439] create a numbits() method for int and long types

Changes by Mark Dickinson dicki...@gmail.com: Removed file: http://bugs.python.org/file12339/bit_length7_opt.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3439 ___

[issue4574] reading UTF16-encoded text file crashes if \r on 64-char boundary

Changes by Antoine Pitrou pit...@free.fr: ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4574 ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue4574] reading UTF16-encoded text file crashes if \r on 64-char boundary

Antoine Pitrou pit...@free.fr added the comment: Here is a simpler patch with a different approach and a lot of tests. The advantage is that it doesn't break the API. Added file: http://bugs.python.org/file12344/utf16_newlines.patch ___ Python tracker

[issue4574] reading UTF16-encoded text file crashes if \r on 64-char boundary

Antoine Pitrou pit...@free.fr added the comment: This new variant also removes the dangerous hack in getstate / setstate. Added file: http://bugs.python.org/file12345/utf16_newlines2.patch ___ Python tracker rep...@bugs.python.org

[issue1040026] os.times() is bogus

Gregory P. Smith g...@krypto.org added the comment: should the unit test in test_posix5.patch have been removed? (regardless, its still on the bug tracker via the history links) ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1040026

[issue4574] reading UTF16-encoded text file crashes if \r on 64-char boundary

Gregory P. Smith g...@krypto.org added the comment: utf16_newlines2.patch looks good to me. This is a data corruption issue. If it is deferred for 3.0.1 it must be fixed in 3.0.2. +1 on putting this in 3.0.1. -- assignee: - pitrou nosy: +gregory.p.smith priority: - release blocker

[issue3978] ZipFileExt.read() can be incredibly slow; patch included

Antoine Pitrou pit...@free.fr added the comment: Attaching a cleanup of the proposed patch. The funny thing is that for me, both the unpatched and patched versions are as fast as the unzip binary. Added file: http://bugs.python.org/file12346/zipperf.patch

[issue4561] Optimize new io library

Antoine Pitrou pit...@free.fr added the comment: Christian, by benchmarks I meant a measurement of text reading with and without the patch. ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4561 ___

[issue4583] segfault when mutating memoryview to array.array when array is resized

Antoine Pitrou pit...@free.fr added the comment: Here is a patch for the array module. -- keywords: +needs review, patch nosy: +pitrou priority: - critical stage: - patch review Added file: http://bugs.python.org/file12347/arraybuf.patch ___ Python

[issue4653] Patch to fix typos for Py3K

Antoine Pitrou pit...@free.fr added the comment: I don't know Windows APIs but the pythonrun.c bug is genuine. -- nosy: +pitrou priority: - high type: - behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4653

[issue4016] improve linecache: reuse tokenize.detect_encoding() and io.open()

Changes by Antoine Pitrou pit...@free.fr: -- priority: - normal stage: - patch review versions: +Python 3.1 -Python 3.0 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4016 ___

[issue4653] Patch to fix typos for Py3K

Johnny Lee typo...@gmail.com added the comment: Here are the URLs to the MSDN documentation for CreateFileMapping and FormatMessage[A|W]: http://msdn.microsoft.com/en-us/library/aa366537.aspx http://msdn.microsoft.com/en-us/library/ms679351.aspx For CreateFileMapping(), from the Return Value

[issue1040026] os.times() is bogus

Changes by Martin v. Löwis mar...@v.loewis.de: Added file: http://bugs.python.org/file9542/test_posix5.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1040026 ___

[issue1040026] os.times() is bogus

Martin v. Löwis mar...@v.loewis.de added the comment: should the unit test in test_posix5.patch have been removed? I see. I wish that people would a) always provide complete patches in a single file, and b) delete files themselves that have been superceded by others. In any case, I have

[issue4653] Patch to fix typos for Py3K

Johnny Lee typo...@gmail.com added the comment: For the dynload_win.c typo, it's technically a possible buffer overflow, but you'd need to find an error that had an error message that's longer than 259 chars. In pythonrun.c, the if statements for fout and ferr and almost identical. Probably

[issue4163] textwrap wordsep_re Unicode

Antoine Pitrou pit...@free.fr added the comment: Fixed in r67746 and r67747. Thanks for the patch! -- resolution: - fixed stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4163

[issue4258] Use 30-bit digits instead of 15-bit digits for Python integers.

Antoine Pitrou pit...@free.fr added the comment: Just tested the patch, here are some benchmarks: ./python -m timeit -s a=1;b=77 a//b - 2.6: 0.253 usec per loop - 3.1: 0.61 usec per loop - 3.1 + patch: 0.331 usec per loop ./python -m timeit -s a=1;b=77 a*b - 2.6:

[issue4258] Use 30-bit digits instead of 15-bit digits for Python integers.

STINNER Victor victor.stin...@haypocalc.com added the comment: I wrote a small benchmark tool dedicated to integer operations (+ - * / etc.): bench_int.py attached to issue4294. See also Message75715 and Message75719 for my benchmark results. Short sum up: 2^30 base helps a lot on 64 bits CPU

[issue4655] setup.py should not use .pydistutils.cfg

New submission from Jake jah.mailingl...@gmail.com: When installing python 2.6, I used: ./configure --prefix=/home/name/usr Installation was fine and everything was installed to: ~/usr/lib/python2.6 But the .so files were installed to: ~/usr/lib/python As ~/usr/lib/python was (no

[issue4223] inspect.getsource doesn't work on functions imported from a zipfile

Nick Coghlan ncogh...@gmail.com added the comment: After looking into this, I think Alexander is correct. There is no standard mapping between __file__ and __name__ and linecache is mistaken in assuming such a mapping exists for all importers (and is the same as the standard filesystem to name

[issue4655] during Python installation, setup.py should not use .pydistutils.cfg

Changes by Jake jah.mailingl...@gmail.com: -- title: setup.py should not use .pydistutils.cfg - during Python installation, setup.py should not use .pydistutils.cfg ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4655

[issue4523] logging module __init__ uses has_key

Benjamin Peterson musiccomposit...@gmail.com added the comment: Fixed in r67748. -- nosy: +benjamin.peterson resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4523

[issue4512] Add get_filename method to zipimport

Nick Coghlan ncogh...@gmail.com added the comment: The spec get_filename is pretty simple: Return whatever __file__ would be set to if load_module() was called for this module. (runpy's problem is that it never actually loads the module in question, so it never gets the chance to interrogate

Re: [issue4631] urlopen returns extra, spurious bytes

Does the same thing happen with 2.6? Jeremy On Thu, Dec 11, 2008 at 8:53 AM, Jean-Paul Calderone rep...@bugs.python.org wrote: Jean-Paul Calderone exar...@divmod.com added the comment: The f65 is the chunk length for the first chunk returned when requesting that URL. A proxy could easily

[issue4656] Python 3 tutorial has old information about dicts

New submission from Matthew Cowles mdcow...@users.sourceforge.net: [From a question sent to the python-help list.] In the Python 3 tutorial at: http://docs.python.org/3.0/tutorial/datastructures.html#dictionaries it says: The keys() method of a dictionary object returns a list of all the

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