Mailman 3 April 2010 - Python-Dev

Python and compilers
by willian＠ufpa.br 12 Apr '10

12 Apr '10

First, thank you for all opnion. Each one was considered. I think the better question would be: I have to develop a project that involves compilers, and being a fan of Python, I thought about making a compiler for it (most basic idea involving Pythin and compilers). But I saw that I can use what I learned from compilers not only to create a compiler. What is the area of developing the Python interpreter that I could build my project, and please give me interesting ideas for the project.

6 8

PEP 3147, __cached__, and PyImport_ExecCodeModuleEx()
by Barry Warsaw 11 Apr '10

11 Apr '10

I've run into a minor snag implementing the __cached__ attribute on imported modules. From PEP 3147: As part of this PEP, we will add an `__cached__` attribute to modules, which will always point to the actual `pyc` file that was read or written. When the environment variable `$PYTHONDONTWRITEBYTECODE` is set, or the `-B` option is given, or if the source lives on a read-only filesystem, then the `__cached__` attribute will point to the location that the `pyc` file *would* have been written to if it didn't exist. This location of course includes the `__pycache__` subdirectory in its path. The right place to add this seems to be PyImport_ExecCodeModuleEx(), which passes in a `pathname` argument. This function is not documented in the C API reference manual and about the only place where it's described is Misc/HISTORY: - New function PyImport_ExecCodeModuleEx(), which extends PyImport_ExecCodeModule() by adding an extra parameter to pass it the true file. The "true file" can either be the source .py file, the legacy .pyc file, or the PEP 3147 .pyc file depending on the circumstances. The caller knows which it is, but that function itself doesn't. I've tentatively worked out some code that lets it guess, but it's a kludge, it's ugly and I don't like it. I think the right fix is to extend PyImport_ExecCodeModuleEx() to also pass in the pathname for __cached__ (or NULL if None is appropriate). It bothers me a little to change this API, but OTOH, it's an *undocumented* API, so I don't feel too badly. ;) Since this is one of the last things to implement for PEP 3147, I thought I'd ask and see if anybody had any better suggestions. -Barry

6 13

Re: [Python-Dev] Python-Dev Digest, Vol 81, Issue 31
by Denis Kolodin 11 Apr '10

11 Apr '10

On Sun Apr 11 03:23:21 CEST 2010 Terry Reedy wrote: > I believe speculative proposals like this fit better on the python-list or python-ideas list. I see. Thank you :) Denis Kolodin

1 0

Re: [Python-Dev] Python-Dev Digest, Vol 81, Issue 31
by Denis Kolodin 11 Apr '10

11 Apr '10

Hello! My name is Denis Kolodin. I live in Russia, Tambov. I was developing much time with C, Java, C#, R. But two month ago I'm using Python. It's really cool. Now, I move ALL my projects to it fully and have some ideas which API's extensions may will be useful. The first thing I want to say about is an extension of CSV api. In R language I could to set types for the every column in a csv file. I propose to add a same function to the Python's standard library. Here it is (Python 3 version): import csv def reader2(csvfile, frame, *delimiter**=**';'*, **fmtparams): reader = csv.reader(csvfile, delimiter=delimiter, **fmtparams) for row in reader: l = min(len(row), len(frame)) yield [frame[idx](row[idx]) for idx in range(l)] This's generator function which converts an every column to the associated type. In *frame *argument you must to set tuple/list of functions which will uses to convert values in same positions of row from csv file. Frame looks like list of types ))) By default it uses ';' delimiter to make float values conversion are possible. As a sample you have the csv file like: *Any spam...; 1; 2.0; 3* I've saved it to "sample.csv" :) If you are using function reader in the standard "csv" module you get rows as a list of strings :( *>>> reader = csv.reader(open("sample.csv"), delimiter=";")* *>>> print(next(reader))* *['Any spam...', ' 1', ' 2.0', ' 3']* * * * It's not bad in certan situatiuons. But with "reader2" function you can get a list with necessary types: >>> reader = reader2(open("foodstuffs.csv"), (str, int, float, int)) >>> print(next(reader)) ['Any spam...', 1, 2.0, 3] Now you can work with items without extra conversions. [?] I think it's good to add this function to the standard library. I've already used it many times. This function can be useful for many people who works with csv files. And I suppose it conforms to "batteries included" philosophy. What do you think about this extension? Is it possible to add this function to standard library or to add the same behavior to the standard "readed" function in "csv" Python's module? Best Regards, Denis Kolodin Russia, Tambov * 2010/4/10 <python-dev-request(a)python.org> > Send Python-Dev mailing list submissions to > python-dev(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.python.org/mailman/listinfo/python-dev > or, via email, send a message with subject or body 'help' to > python-dev-request(a)python.org > > You can reach the person managing the list at > python-dev-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Python-Dev digest..." > > > Today's Topics: > > 1. Re: PEP 3147, __cached__, and PyImport_ExecCodeModuleEx() > (Guido van Rossum) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 9 Apr 2010 17:41:48 -0700 > From: Guido van Rossum <guido(a)python.org> > To: Paul Moore <p.f.moore(a)gmail.com> > Cc: Python-Dev Dev <python-dev(a)python.org> > Subject: Re: [Python-Dev] PEP 3147, __cached__, and > PyImport_ExecCodeModuleEx() > Message-ID: > <h2pca471dc21004091741tb818fdb0k86f65f7adedb7d12(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Fri, Apr 9, 2010 at 3:54 PM, Paul Moore <p.f.moore(a)gmail.com> wrote: > > On 9 April 2010 23:00, Barry Warsaw <barry(a)python.org> wrote: > >> On Apr 09, 2010, at 02:52 PM, Guido van Rossum wrote: > >> > >>>It may be undocumented but it doesn't start with _ and it exists to > >>>preserve backwards compatibility. So I recommend adding > >>>PyImport_ExecCodeModuleExEx(). > >> > >> Cool, thanks. ?Now I can't wait for PyImport_ExecCodeModuleExExEx() :) > > > > Would it be better to name this one _PyImport_ExecCodeModuleExEx (with > > an underscore) so that we *don't* need to create an ExExEx version in > > future? (Sorry, Barry :-)) > > I don't care about what name you pick, and my ExEx proposal was meant > to include half a wink, but http://docs.python.org/c-api/import.html > makes it clear that PyImport_ExecCodeModuleEx() is far from private! > (I don't know where Barry got that idea.) While Google Code Search > finds mostly references to PyImport_ExecCodeModuleEx in the Python > source code and various copies of it, it also shows some real uses, > e.g. > > http://www.google.com/codesearch/p?hl=en#bkFK9YpaWlI/ubuntu/pool/universe/y… > > -- > --Guido van Rossum (python.org/~guido) > > > ------------------------------ > > _______________________________________________ > Python-Dev mailing list > Python-Dev(a)python.org > http://mail.python.org/mailman/listinfo/python-dev > > > End of Python-Dev Digest, Vol 81, Issue 31 > ****************************************** >

2 1

PEP 3147 working implementation
by Barry Warsaw 09 Apr '10

09 Apr '10

I now have a working implementation of PEP 3147 which passes all the existing, and new, tests. I'm sure there's still work to do, but I think the branch is in good enough shape to start getting some feedback from python-dev. You can grab the changes in several ways. If you have Bazaar, you can check out the branch by doing: % bzr branch lp:~barry/python/pep3147 You can also view a live diff online: https://code.launchpad.net/~barry/python/pep3147/+merge/22648 or just download the diff, which should apply cleanly against the py3k Subversion branch (or pretty close): https://code.launchpad.net/~barry/python/pep3147/+merge/22648/+preview-diff… Modulo some lag time, the diffs should track changes I make to the branch. You can provide feedback to me directly, as a follow up to this message, or in Launchpad. I've also updated the PEP to point to these locations for the reference implementation. Cheers, -Barry

3 6

Summary of Python tracker Issues
by Python tracker 09 Apr '10

09 Apr '10

ACTIVITY SUMMARY (2010-04-02 - 2010-04-09) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue number. Do NOT respond to this message. 2639 open (+37) / 17538 closed (+30) / 20177 total (+67) Open issues with patches: 1072 Average duration of open issues: 728 days. Median duration of open issues: 489 days. Open Issues Breakdown open 2599 (+37) languishing 7 ( +0) pending 32 ( +0) Issues Created Or Reopened (71) _______________________________ Add environment variable $PYTHONWARNINGS 2010-04-07 http://bugs.python.org/issue7301 reopened pjenvey patch, needs review patch: BaseHTTPServer reinventing rfc822 date formatting 2010-04-09 http://bugs.python.org/issue7370 reopened r.david.murray patch test_py3kwarn fails when running the whole test suite 2010-04-03 http://bugs.python.org/issue7772 reopened mark.dickinson patch Documentation of math.pow, math.hypot, and complex.__abs__ 2010-04-06 http://bugs.python.org/issue7947 reopened mark.dickinson patch i have a doubt with using __init__ and .self and classes 2010-04-02 CLOSED http://bugs.python.org/issue8291 created krishnalolla Incorrect condition test in platform.py 2010-04-02 http://bugs.python.org/issue8292 created akuchling patch, easy HTTPSConnection.close() does not immediately close the connect 2010-04-02 http://bugs.python.org/issue8293 created dandrzejewski Allow Fraction constructor to accept float and decimal instanc 2010-04-02 CLOSED http://bugs.python.org/issue8294 created mark.dickinson patch add unpack_archive to shutil 2010-04-02 http://bugs.python.org/issue8295 created tarek multiprocessing.Pool hangs when issuing KeyboardInterrupt 2010-04-03 http://bugs.python.org/issue8296 created vlasovskikh patch AttributeError message text should include module name 2010-04-03 http://bugs.python.org/issue8297 created cjerdonek patch in what way we have to save tha module? 2010-04-03 CLOSED http://bugs.python.org/issue8298 created krishnalolla Improve GIL in 2.7 2010-04-03 http://bugs.python.org/issue8299 created krisvale patch, patch Allow struct.pack to handle objects with an __index__ method. 2010-04-03 CLOSED http://bugs.python.org/issue8300 created mark.dickinson patch Putting a function in a unittest.TestSuite doesn't work 2010-04-03 http://bugs.python.org/issue8301 created michael.foord SkipTest exception in setUpClass or setUpModule is marked as a 2010-04-03 http://bugs.python.org/issue8302 created michael.foord python -m unittest -h and python -m unittest discover -h messa 2010-04-03 http://bugs.python.org/issue8303 created michael.foord strftime and Unicode characters 2010-04-03 http://bugs.python.org/issue8304 created AndiDog memoview[0] creates an invalid view if ndim != 1 2010-04-03 http://bugs.python.org/issue8305 created haypo ctypes.create_string_buffer should only accept bytes 2010-04-03 http://bugs.python.org/issue8306 created benjamin.peterson test_pep263 failure on OS X 2010-04-03 CLOSED http://bugs.python.org/issue8307 created mark.dickinson raw_bytes.decode('cp932') -- spurious mappings 2010-04-03 CLOSED http://bugs.python.org/issue8308 created sjmachin Sin(x) is Wrong 2010-04-04 CLOSED http://bugs.python.org/issue8309 created derekroconnor dis.dis function skips new-style classes in a module 2010-04-04 CLOSED http://bugs.python.org/issue8310 created dogeen wave module sets data subchunk size incorrectly when writing w 2010-04-04 http://bugs.python.org/issue8311 created Jeff.Pursell Add post/pre hooks for distutils commands 2010-04-04 http://bugs.python.org/issue8312 created tarek <unprintable AssertionError object> message in unittest traceb 2010-04-05 http://bugs.python.org/issue8313 created michael.foord test_ctypes fails in test_ulonglong on sparc buildbots 2010-04-05 CLOSED http://bugs.python.org/issue8314 created r.david.murray patch, buildbot ./python -m unittest test.test_importlib doesn't work 2010-04-05 http://bugs.python.org/issue8315 created barry test_gdb is susceptible to tty width settings 2010-04-05 CLOSED http://bugs.python.org/issue8316 created dmalcolm buildbot test_tarfile fails intermittently on Windows 2010-04-05 CLOSED http://bugs.python.org/issue8317 created jaraco Deprecation of multifile inappropriate or incomplete 2010-04-05 http://bugs.python.org/issue8318 created tseaver HTMLparser does not handle call to handle_data when a tag cont 2010-04-05 http://bugs.python.org/issue8319 created wplappert easy docs on socket.recv_into doesn't mention the return value 2010-04-05 CLOSED http://bugs.python.org/issue8320 created irmen easy Give access to openssl version number 2010-04-05 CLOSED http://bugs.python.org/issue8321 created pitrou patch test_ssl failures with OpenSSL 1.0.0 2010-04-05 http://bugs.python.org/issue8322 created pitrou multiprocessing.Queue ignores pickle restrictions in .put() 2010-04-05 http://bugs.python.org/issue8323 created rschoon add a distutils test command 2010-04-05 http://bugs.python.org/issue8324 created tarek gsoc improve regrtest command line help 2010-04-06 http://bugs.python.org/issue8325 created techtonik patch, easy, needs review Cannot import name SemLock on Ubuntu lucid 2010-04-06 http://bugs.python.org/issue8326 created coconutrb unintuitive behaviour of logging message propagation 2010-04-06 CLOSED http://bugs.python.org/issue8327 created pakal longobject.c: silence warnings (Visual Studio) 2010-04-06 CLOSED http://bugs.python.org/issue8328 created skrah patch select.select() can return lists with identical id()'s 2010-04-06 CLOSED http://bugs.python.org/issue8329 created mrmakent Failures seen in test_gdb on buildbots 2010-04-07 http://bugs.python.org/issue8330 created dmalcolm patch, buildbot a documentation grammar fix in logging module 2010-04-07 CLOSED http://bugs.python.org/issue8331 created l0nwlf patch regrtest single TestClass/test_method 2010-04-07 http://bugs.python.org/issue8332 created techtonik test_multiprocessing: pickling failures 2010-04-07 CLOSED http://bugs.python.org/issue8333 created skrah patch, buildbot winreg.QueryValue should return bytes, not unicode 2010-04-07 CLOSED http://bugs.python.org/issue8334 created stutzbach distutils test_build_ext's test_get_outputs fails in bootstrap 2010-04-07 http://bugs.python.org/issue8335 created matejcik PyObject_CallObject - Not "reference-count-neutral" 2010-04-07 CLOSED http://bugs.python.org/issue8336 created Krauzi test_gdb fails on Sparc Ubuntu 2010-04-07 CLOSED http://bugs.python.org/issue8337 created loewis buildbot Outdated information 2010-04-07 http://bugs.python.org/issue8338 created LambertDW patch urlunparse(urlparse('x://')) now returns 'x:' instead of 'x:// 2010-04-07 http://bugs.python.org/issue8339 created Michael Glassford easy bytearray undocumented on trunk 2010-04-07 http://bugs.python.org/issue8340 created brian.curtin sphinx bug? 2010-04-08 CLOSED http://bugs.python.org/issue8341 created LambertDW Python fails to run if launched from NTFS symlink and DLL not 2010-04-08 CLOSED http://bugs.python.org/issue8342 created jaraco patch improve re parse error messages for named groups 2010-04-08 http://bugs.python.org/issue8343 created techtonik patch test_tag_configure fails on FreeBSD 2010-04-08 http://bugs.python.org/issue8344 created loewis buildbot missing method MatchObject.groups in re module doc 2010-04-08 CLOSED http://bugs.python.org/issue8345 created drukker Old Version Name in Interactive Mode 2010-04-08 http://bugs.python.org/issue8346 created istihza string capitalize erroneously lower-case any non-first letters 2010-04-08 CLOSED http://bugs.python.org/issue8347 created famart test_urllib2net fails because of bad URL 2010-04-08 CLOSED http://bugs.python.org/issue8348 created loewis buildbot os.environ.get returns incorrect data 2010-04-08 CLOSED http://bugs.python.org/issue8349 created dbrandow os.mkdir doc comment is incorrect 2010-04-08 http://bugs.python.org/issue8350 created twhitema patch Suppress large diffs in unitttest.TestCase.assertSequenceEqual 2010-04-08 http://bugs.python.org/issue8351 created flub patch imp.find_module of a .py ending dir causes glibc double free c 2010-04-09 CLOSED http://bugs.python.org/issue8352 created doko Negative exponentiation behaving oddly in python shell 2010-04-09 CLOSED http://bugs.python.org/issue8353 created CWardUSC siginterrupt with flag=False is reset when signal received 2010-04-09 http://bugs.python.org/issue8354 created spiv diff.py produce unified format by default 2010-04-09 http://bugs.python.org/issue8355 created techtonik patch SyntaxError: integer assignment with leading zeros (only 8 and 2010-04-09 CLOSED http://bugs.python.org/issue8356 created posativ distutils does not allow installation with --root and --prefix 2010-04-09 http://bugs.python.org/issue8357 created timkersten Issues Now Closed (63) ______________________ float compared to decimal is silently incorrect. 140 days http://bugs.python.org/issue2531 mark.dickinson patch Py_(X)SETREF macros 666 days http://bugs.python.org/issue3081 rhettinger patch Ill-formed surrogates not treated as errors during encoding/de 591 days http://bugs.python.org/issue3672 ezio.melotti patch "sort" command doesn't work in pstats if run interactively 492 days http://bugs.python.org/issue4440 akuchling patch, needs review struct: per item endianess specification 492 days http://bugs.python.org/issue4484 rhettinger Faster utf-8 decoding 451 days http://bugs.python.org/issue4868 ezio.melotti patch Strange DeprecationWarning behaviour in module struct 420 days http://bugs.python.org/issue5198 mark.dickinson test_distutils leaves a 'foo' file behind in the cwd 328 days http://bugs.python.org/issue6022 matejcik warnings.catch_warnings is not thread-safe 241 days http://bugs.python.org/issue6647 akuchling patch decimal.py: == and != comparisons involving NaNs 11 days http://bugs.python.org/issue7279 mark.dickinson patch Add lossy queue to queue library module 137 days http://bugs.python.org/issue7337 rhettinger Code in xrange documentation does not work 79 days http://bugs.python.org/issue7721 georg.brandl Doc for itertools recipe consume is complicated and less effic 68 days http://bugs.python.org/issue7764 rhettinger Revise generator-related Glossary entries 37 days http://bugs.python.org/issue8012 jjposner patch Setting a T_INT attribute raises internal error 41 days http://bugs.python.org/issue8014 mark.dickinson patch Add gdb7 hooks to make it easier to debug Python 34 days http://bugs.python.org/issue8032 loewis patch pybsddb 4.8.4 integration 24 days http://bugs.python.org/issue8156 jcea test_zlib fails with zlib 1.2.4 16 days http://bugs.python.org/issue8193 valerio.turturici patch, easy test_ttk_guionly assertion error on 3.x linux 64-bit 17 days http://bugs.python.org/issue8204 loewis patch, buildbot test_issue7820 fails: "name '?' is not defined" 12 days http://bugs.python.org/issue8208 ezio.melotti Fix typos and phrasing in the Web servers howto 12 days http://bugs.python.org/issue8218 ezio.melotti patch, easy, needs review Fix C API documentation: Argument parsing 9 days http://bugs.python.org/issue8227 haypo patch Decimal constructor to accept float 9 days http://bugs.python.org/issue8257 mark.dickinson patch, easy left shift operator doesn't accepts long as second argument 8 days http://bugs.python.org/issue8259 mark.dickinson patch bad wording in error message attempting to start a Thread twic 7 days http://bugs.python.org/issue8262 orsenthil patch python-gdb.py triggers compile errors on FreeBSD and Solaris 3 days http://bugs.python.org/issue8287 r.david.murray patch, buildbot zipfile module documentation misprint 1 days http://bugs.python.org/issue8288 georg.brandl I HAVE A PROBLEM WITH PYTHON 0 days http://bugs.python.org/issue8290 ezio.melotti i have a doubt with using __init__ and .self and classes 0 days http://bugs.python.org/issue8291 ezio.melotti Allow Fraction constructor to accept float and decimal instanc 1 days http://bugs.python.org/issue8294 mark.dickinson patch in what way we have to save tha module? 0 days http://bugs.python.org/issue8298 eric.smith Allow struct.pack to handle objects with an __index__ method. 2 days http://bugs.python.org/issue8300 mark.dickinson patch test_pep263 failure on OS X 1 days http://bugs.python.org/issue8307 mark.dickinson raw_bytes.decode('cp932') -- spurious mappings 1 days http://bugs.python.org/issue8308 r.david.murray Sin(x) is Wrong 1 days http://bugs.python.org/issue8309 derekroconnor dis.dis function skips new-style classes in a module 0 days http://bugs.python.org/issue8310 benjamin.peterson test_ctypes fails in test_ulonglong on sparc buildbots 3 days http://bugs.python.org/issue8314 theller patch, buildbot test_gdb is susceptible to tty width settings 0 days http://bugs.python.org/issue8316 r.david.murray buildbot test_tarfile fails intermittently on Windows 0 days http://bugs.python.org/issue8317 brian.curtin docs on socket.recv_into doesn't mention the return value 1 days http://bugs.python.org/issue8320 georg.brandl easy Give access to openssl version number 0 days http://bugs.python.org/issue8321 giampaolo.rodola patch unintuitive behaviour of logging message propagation 1 days http://bugs.python.org/issue8327 pakal longobject.c: silence warnings (Visual Studio) 1 days http://bugs.python.org/issue8328 skrah patch select.select() can return lists with identical id()'s 0 days http://bugs.python.org/issue8329 benjamin.peterson a documentation grammar fix in logging module 0 days http://bugs.python.org/issue8331 vinay.sajip patch test_multiprocessing: pickling failures 0 days http://bugs.python.org/issue8333 michael.foord patch, buildbot winreg.QueryValue should return bytes, not unicode 0 days http://bugs.python.org/issue8334 stutzbach PyObject_CallObject - Not "reference-count-neutral" 1 days http://bugs.python.org/issue8336 georg.brandl test_gdb fails on Sparc Ubuntu 0 days http://bugs.python.org/issue8337 dmalcolm buildbot sphinx bug? 0 days http://bugs.python.org/issue8341 georg.brandl Python fails to run if launched from NTFS symlink and DLL not 0 days http://bugs.python.org/issue8342 jaraco patch missing method MatchObject.groups in re module doc 0 days http://bugs.python.org/issue8345 brian.curtin string capitalize erroneously lower-case any non-first letters 0 days http://bugs.python.org/issue8347 pjenvey test_urllib2net fails because of bad URL 0 days http://bugs.python.org/issue8348 loewis buildbot os.environ.get returns incorrect data 0 days http://bugs.python.org/issue8349 loewis imp.find_module of a .py ending dir causes glibc double free c 0 days http://bugs.python.org/issue8352 flox Negative exponentiation behaving oddly in python shell 0 days http://bugs.python.org/issue8353 CWardUSC SyntaxError: integer assignment with leading zeros (only 8 and 0 days http://bugs.python.org/issue8356 merwok Conversion of longs to bytes and vice-versa. 82 days http://bugs.python.org/issue1023290 mark.dickinson patch Compile of _socket fails on IRIX with 2.4 1933 days http://bugs.python.org/issue1086642 georg.brandl Add write buffering to gzip 1398 days http://bugs.python.org/issue1501108 pitrou PEP101/102 out of date 1366 days http://bugs.python.org/issue1518617 georg.brandl struct.pack raises TypeError where it used to convert 33 days http://bugs.python.org/issue1530559 mark.dickinson patch Top Issues Most Discussed (10) ______________________________ 21 test_ftplib fails with OpenSSL 0.9.8m 30 days open http://bugs.python.org/issue8108 15 Improve GIL in 2.7 6 days open http://bugs.python.org/issue8299 15 SocketServer doesn't handle syscall interruption 47 days open http://bugs.python.org/issue7978 11 test_multiprocessing: pickling failures 0 days closed http://bugs.python.org/issue8333 11 Give access to openssl version number 0 days closed http://bugs.python.org/issue8321 11 TestLoader.loadTestsFromName swallows import errors 109 days open http://bugs.python.org/issue7559 10 test_pep263 failure on OS X 1 days closed http://bugs.python.org/issue8307 10 Allow struct.pack to handle objects with an __index__ method. 2 days closed http://bugs.python.org/issue8300 9 Add gdb7 hooks to make it easier to debug Python 34 days closed http://bugs.python.org/issue8032 9 Add os.symlink() and os.path.islink() support for Windows 1271 days open http://bugs.python.org/issue1578269

1 0

regrtest oddify
by "Martin v. Löwis" 08 Apr '10

08 Apr '10

I have commented out all tests in test_gdb, yet http://www.python.org/dev/buildbot/all/builders/sparc%20Ubuntu%20trunk/buil… still shows them being run. Can anybody explain that, please? TIA, Martin

3 3

nonlocals() function?
by Steve Bonner 08 Apr '10

08 Apr '10

What do we think of adding a built-in nonlocals() function that would be similar to globals() and locals()? Like those functions, it would return a dictionary of variable names and their values. Since we now have the nonlocal statement, it would be consistent to keep the three scopes local/nonlocal/global with parallel capabilities. And it might sometimes be useful for code inside a nested function to see what variables are available at the enclosing level. Steve Bonner

9 13

iso-2022 and issue 7472: question for the experts
by R. David Murray 07 Apr '10

07 Apr '10

A long time ago (in a galaxy far far...no, wrong show) Er, as I was saying, a long time ago Barry applied a patch to email that went more or less like this: ndex: email/Encoders.py =================================================================== --- email/Encoders.py (revision 35918) +++ email/Encoders.py (revision 35919) @@ -84,7 +83,13 @@ try: orig.encode('ascii') except UnicodeError: - msg['Content-Transfer-Encoding'] = '8bit' + # iso-2022-* is non-ASCII but still 7-bit + charset = msg.get_charset() + output_cset = charset and charset.output_charset + if output_cset and output_cset.lower().startswith('iso-2202-'): + msg['Content-Transfer-Encoding'] = '7bit' + else: + msg['Content-Transfer-Encoding'] = '8bit' else: msg['Content-Transfer-Encoding'] = '7bit' Nobody noticed the typo (2202 instead of 2022) until Yukihiro reported it in the issue. No one has complained about the code not working. There are no unit tests that cover the code (all tests pass with or without the patch, and alternatively with or without correcting the typo). Reading the standards, it looks to me like either the ISO-2022 input will be 7-bit, and the except will not trigger, or it will be invalid, because 8bit, and so should be set to 8bit just like all the other cases where there's invalid 8bit data. So I think this patch should just be reverted. Can someone (Steve Turnbull?) confirm or refute my analysis? -- R. David Murray www.bitdance.com

3 3

stabilizing for a release
by Benjamin Peterson 07 Apr '10

07 Apr '10

I propose that we freeze the trunk except for fixes for the buildbots. Thoughts? -- Regards, Benjamin

5 8