Mailman 3 January 2014 - Python-Dev

Summary of Python tracker Issues
by Python tracker Jan. 31, 2014

Jan. 31, 2014

ACTIVITY SUMMARY (2014-01-24 - 2014-01-31) Python tracker at http://bugs.python.org/ To view or respond to any of the issues listed below, click on the issue. Do NOT respond to this message. Issues counts and deltas: open 4484 ( +9) closed 27748 (+70) total 32232 (+79) Open issues with patches: 2036 Issues opened (58) ================== #3158: Doctest fails to find doctests in extension modules http://bugs.python.org/issue3158 reopened by zach.ware #20383: Add a keyword-only spec argument to types.ModuleType http://bugs.python.org/issue20383 opened by brett.cannon #20384: os.open() exception doesn't contain file name on Windows http://bugs.python.org/issue20384 opened by serhiy.storchaka #20386: socket.SocketType enum overwrites import of _socket.SocketType http://bugs.python.org/issue20386 opened by giampaolo.rodola #20387: tokenize/untokenize roundtrip fails with tabs http://bugs.python.org/issue20387 opened by jason.coombs #20389: clarify meaning of xbar and mu in pvariance/variance of statis http://bugs.python.org/issue20389 opened by jtaylor #20391: windows python launcher should support explicit 64-bit version http://bugs.python.org/issue20391 opened by theller #20392: Inconsistency with uppercase file extensions in MimeTypes.gues http://bugs.python.org/issue20392 opened by rodrigo.parra #20393: Docs: mark deprecated items in the TOC http://bugs.python.org/issue20393 opened by zearin #20394: Coverity complains on audioop http://bugs.python.org/issue20394 opened by serhiy.storchaka #20396: Argument Clinic: Touch source file if any output file changed http://bugs.python.org/issue20396 opened by larry #20397: distutils --record option does not validate existance of byte- http://bugs.python.org/issue20397 opened by marcusva #20399: Comparison of memoryview http://bugs.python.org/issue20399 opened by fin.swimmer #20400: Add create_read_pipe_protocol/create_write_pipe_protocol to as http://bugs.python.org/issue20400 opened by haypo #20402: List comprehensions should be noted in for loop documentation http://bugs.python.org/issue20402 opened by robla #20403: Idle options dialog: add help http://bugs.python.org/issue20403 opened by terry.reedy #20404: Delayed exception using non-text encodings with TextIOWrapper http://bugs.python.org/issue20404 opened by ncoghlan #20405: Add io.BinaryTransformWrapper and a "transform" parameter to o http://bugs.python.org/issue20405 opened by ncoghlan #20406: Use application icon for IDLE http://bugs.python.org/issue20406 opened by serhiy.storchaka #20408: memoryview() constructor documentation error http://bugs.python.org/issue20408 opened by larry #20410: Argument Clinic: add 'self' return converter http://bugs.python.org/issue20410 opened by zach.ware #20412: Enum and IntEnum classes are not defined in the documentation http://bugs.python.org/issue20412 opened by ethan.furman #20413: Errors in documentation of standard codec error handlers http://bugs.python.org/issue20413 opened by RalfM #20414: Python 3.4 has two Overlapped types http://bugs.python.org/issue20414 opened by haypo #20415: Could method "isinstance" take a list as parameter? http://bugs.python.org/issue20415 opened by Chen.ZHANG #20416: Marshal: special case int and float, don't use references http://bugs.python.org/issue20416 opened by haypo #20417: ensurepip should not be installed with --without-ensurepip http://bugs.python.org/issue20417 opened by Arfrever #20420: BufferedIncrementalEncoder violates IncrementalEncoder interfa http://bugs.python.org/issue20420 opened by serhiy.storchaka #20421: expose SSL socket protocol version http://bugs.python.org/issue20421 opened by pitrou #20423: io.StringIO newline param has wrong default http://bugs.python.org/issue20423 opened by couplewavylines #20426: Compiling a regex with re.DEBUG should force a recompile http://bugs.python.org/issue20426 opened by leewz #20428: _Py_open does not work with O_CREAT http://bugs.python.org/issue20428 opened by alexandre.vassalotti #20429: 3.3.4rc1 install deleted Windows taskbar icons http://bugs.python.org/issue20429 opened by terry.reedy #20430: Make argparse.SUPPRESS work as an argument "dest" http://bugs.python.org/issue20430 opened by jzwinck #20431: Should posix functions that accept fd also accept objects with http://bugs.python.org/issue20431 opened by larry #20432: Argument Clinic: when cloning functions with path_t, path_t re http://bugs.python.org/issue20432 opened by larry #20433: add aliasedname() and namedaliases() methods to unicodedata mo http://bugs.python.org/issue20433 opened by jamadagni #20434: Process crashes if not enough memory to import module http://bugs.python.org/issue20434 opened by qualab #20435: Discrepancy between io.StringIO and _pyio.StringIO with univer http://bugs.python.org/issue20435 opened by serhiy.storchaka #20437: Use Py_CLEAR to safe clear attributes http://bugs.python.org/issue20437 opened by serhiy.storchaka #20438: inspect: Deprecate getfullargspec? http://bugs.python.org/issue20438 opened by yselivanov #20439: inspect.Signature: Add Signature.format method to match format http://bugs.python.org/issue20439 opened by yselivanov #20440: Use Py_REPLACE/Py_XREPLACE macros http://bugs.python.org/issue20440 opened by serhiy.storchaka #20443: __code__. co_filename should always be an absolute path http://bugs.python.org/issue20443 opened by yselivanov #20444: Reduce logging.config.Converting duplication of code http://bugs.python.org/issue20444 opened by dongwm #20445: HAVE_BROKEN_NICE detected incorrectly due to configure.ac typo http://bugs.python.org/issue20445 opened by George.Kouryachy #20446: ipaddress: hash similarities for ipv4 and ipv6 http://bugs.python.org/issue20446 opened by flambda #20447: doctest.debug_script: insecure use of /tmp http://bugs.python.org/issue20447 opened by jwilk #20450: hg touch fails on System Z Linux buildbot http://bugs.python.org/issue20450 opened by serhiy.storchaka #20451: os.exec* mangles argv on windows (splits on spaces, etc) http://bugs.python.org/issue20451 opened by The Compiler #20452: test_timeout_rounding() of test_asyncio fails on "x86 Ubuntu S http://bugs.python.org/issue20452 opened by haypo #20453: json.load() error message changed in 3.4 http://bugs.python.org/issue20453 opened by barry #20454: platform.linux_distribution() returns empty value on Archlinux http://bugs.python.org/issue20454 opened by fmoreau #20455: test_asyncio hangs on Windows http://bugs.python.org/issue20455 opened by haypo #20456: Argument Clinic rollup patch, 2014/01/31 http://bugs.python.org/issue20456 opened by larry #20457: Use partition and enumerate make getopt easier http://bugs.python.org/issue20457 opened by dongwm #20459: No Argument Clinic documentation on how to specify a return co http://bugs.python.org/issue20459 opened by brett.cannon #20460: Wrong markup in c-api/arg.rst http://bugs.python.org/issue20460 opened by OSAMU.NAKAMURA Most recent 15 issues with no replies (15) ========================================== #20460: Wrong markup in c-api/arg.rst http://bugs.python.org/issue20460 #20459: No Argument Clinic documentation on how to specify a return co http://bugs.python.org/issue20459 #20457: Use partition and enumerate make getopt easier http://bugs.python.org/issue20457 #20456: Argument Clinic rollup patch, 2014/01/31 http://bugs.python.org/issue20456 #20454: platform.linux_distribution() returns empty value on Archlinux http://bugs.python.org/issue20454 #20451: os.exec* mangles argv on windows (splits on spaces, etc) http://bugs.python.org/issue20451 #20450: hg touch fails on System Z Linux buildbot http://bugs.python.org/issue20450 #20447: doctest.debug_script: insecure use of /tmp http://bugs.python.org/issue20447 #20446: ipaddress: hash similarities for ipv4 and ipv6 http://bugs.python.org/issue20446 #20443: __code__. co_filename should always be an absolute path http://bugs.python.org/issue20443 #20435: Discrepancy between io.StringIO and _pyio.StringIO with univer http://bugs.python.org/issue20435 #20432: Argument Clinic: when cloning functions with path_t, path_t re http://bugs.python.org/issue20432 #20430: Make argparse.SUPPRESS work as an argument "dest" http://bugs.python.org/issue20430 #20429: 3.3.4rc1 install deleted Windows taskbar icons http://bugs.python.org/issue20429 #20421: expose SSL socket protocol version http://bugs.python.org/issue20421 Most recent 15 issues waiting for review (15) ============================================= #20460: Wrong markup in c-api/arg.rst http://bugs.python.org/issue20460 #20457: Use partition and enumerate make getopt easier http://bugs.python.org/issue20457 #20456: Argument Clinic rollup patch, 2014/01/31 http://bugs.python.org/issue20456 #20452: test_timeout_rounding() of test_asyncio fails on "x86 Ubuntu S http://bugs.python.org/issue20452 #20444: Reduce logging.config.Converting duplication of code http://bugs.python.org/issue20444 #20440: Use Py_REPLACE/Py_XREPLACE macros http://bugs.python.org/issue20440 #20437: Use Py_CLEAR to safe clear attributes http://bugs.python.org/issue20437 #20434: Process crashes if not enough memory to import module http://bugs.python.org/issue20434 #20417: ensurepip should not be installed with --without-ensurepip http://bugs.python.org/issue20417 #20416: Marshal: special case int and float, don't use references http://bugs.python.org/issue20416 #20414: Python 3.4 has two Overlapped types http://bugs.python.org/issue20414 #20406: Use application icon for IDLE http://bugs.python.org/issue20406 #20404: Delayed exception using non-text encodings with TextIOWrapper http://bugs.python.org/issue20404 #20394: Coverity complains on audioop http://bugs.python.org/issue20394 #20392: Inconsistency with uppercase file extensions in MimeTypes.gues http://bugs.python.org/issue20392 Top 10 most discussed issues (10) ================================= #20386: socket.SocketType enum overwrites import of _socket.SocketType http://bugs.python.org/issue20386 19 msgs #20311: epoll.poll(timeout) and PollSelector.select(timeout) must roun http://bugs.python.org/issue20311 18 msgs #20452: test_timeout_rounding() of test_asyncio fails on "x86 Ubuntu S http://bugs.python.org/issue20452 17 msgs #19081: zipimport behaves badly when the zip file changes while the pr http://bugs.python.org/issue19081 12 msgs #20414: Python 3.4 has two Overlapped types http://bugs.python.org/issue20414 12 msgs #19145: Inconsistent behaviour in itertools.repeat when using negative http://bugs.python.org/issue19145 11 msgs #20406: Use application icon for IDLE http://bugs.python.org/issue20406 10 msgs #20416: Marshal: special case int and float, don't use references http://bugs.python.org/issue20416 9 msgs #15216: Support setting the encoding on a text stream after creation http://bugs.python.org/issue15216 8 msgs #17162: Py_LIMITED_API needs a PyType_GenericDealloc http://bugs.python.org/issue17162 8 msgs Issues closed (70) ================== #8260: When I use codecs.open(...) and f.readline() follow up by f.re http://bugs.python.org/issue8260 closed by serhiy.storchaka #8639: Allow callable objects in inspect.getfullargspec http://bugs.python.org/issue8639 closed by yselivanov #12704: Language Reference: Clarify behaviour of yield when generator http://bugs.python.org/issue12704 closed by python-dev #15189: tkinter.messagebox does not use the application's icon http://bugs.python.org/issue15189 closed by terry.reedy #15869: IDLE: Include .desktop file and icon http://bugs.python.org/issue15869 closed by terry.reedy #15931: inspect.findsource fails after directory change http://bugs.python.org/issue15931 closed by yselivanov #16490: "inspect.getargspec()" and "inspect.getcallargs()" don't work http://bugs.python.org/issue16490 closed by yselivanov #17432: PyUnicode_ functions not accessible in Limited API on Windows http://bugs.python.org/issue17432 closed by loewis #17481: inspect.getfullargspec should use __signature__ http://bugs.python.org/issue17481 closed by yselivanov #17721: Help button on preference window doesn't work http://bugs.python.org/issue17721 closed by terry.reedy #17727: document that some distributions change site.py defaults http://bugs.python.org/issue17727 closed by georg.brandl #19077: More robust TemporaryDirectory cleanup http://bugs.python.org/issue19077 closed by serhiy.storchaka #19140: inspect.Signature.bind() inaccuracies http://bugs.python.org/issue19140 closed by yselivanov #19363: Python 2.7's future_builtins.map is not compatible with Python http://bugs.python.org/issue19363 closed by eric.smith #19456: ntpath doesn't join paths correctly when a drive is present http://bugs.python.org/issue19456 closed by serhiy.storchaka #19618: test_sysconfig_module fails on Ubuntu 12.04 http://bugs.python.org/issue19618 closed by berker.peksag #19658: inspect.getsource weird case http://bugs.python.org/issue19658 closed by yselivanov #19944: Make importlib.find_spec load packages as needed http://bugs.python.org/issue19944 closed by eric.snow #19966: Wrong mtimes of Include/Python-ast.h and Python/Python-ast.c i http://bugs.python.org/issue19966 closed by python-dev #19990: Add unittests for imghdr module http://bugs.python.org/issue19990 closed by serhiy.storchaka #20011: Changing the signature for Parameter's constructor http://bugs.python.org/issue20011 closed by yselivanov #20075: help(open) eats first line http://bugs.python.org/issue20075 closed by zach.ware #20105: Codec exception chaining is losing traceback details http://bugs.python.org/issue20105 closed by python-dev #20133: Derby: Convert the audioop module to use Argument Clinic http://bugs.python.org/issue20133 closed by serhiy.storchaka #20151: Derby: Convert the binascii module to use Argument Clinic http://bugs.python.org/issue20151 closed by serhiy.storchaka #20166: window x64 c-extensions not works on python3.4.0b2 http://bugs.python.org/issue20166 closed by skrah #20193: Derby: Convert the zlib, _bz2 and _lzma modules to use Argumen http://bugs.python.org/issue20193 closed by serhiy.storchaka #20209: Deprecate PROTOCOL_SSLv2 http://bugs.python.org/issue20209 closed by pitrou #20223: inspect.signature does not support new functools.partialmethod http://bugs.python.org/issue20223 closed by yselivanov #20231: Argument Clinic accepts no-default args after default args http://bugs.python.org/issue20231 closed by larry #20308: inspect.Signature doesn't support user classes without __init_ http://bugs.python.org/issue20308 closed by yselivanov #20317: ExitStack hang if enough nested exceptions http://bugs.python.org/issue20317 closed by ncoghlan #20320: select.select(timeout) and select.kqueue.control(timeout) must http://bugs.python.org/issue20320 closed by haypo #20322: Upgrade ensurepip's pip and setuptools http://bugs.python.org/issue20322 closed by dstufft #20325: Argument Clinic: self converters are not preserved when clonin http://bugs.python.org/issue20325 closed by larry #20326: Argument Clinic should use a non-error-prone syntax to mark te http://bugs.python.org/issue20326 closed by larry #20330: PEP 342 is outdated http://bugs.python.org/issue20330 closed by ncoghlan #20331: Fix various fd leaks http://bugs.python.org/issue20331 closed by serhiy.storchaka #20338: Idle: increase max calltip width http://bugs.python.org/issue20338 closed by terry.reedy #20348: Argument Clinic HOWTO listed multiple times in HOWTO index http://bugs.python.org/issue20348 closed by ezio.melotti #20349: Argument Clinic: error on __new__ or __init__ with no argument http://bugs.python.org/issue20349 closed by taleinat #20356: fix formatting of positional-only parameters in inspect.Signat http://bugs.python.org/issue20356 closed by yselivanov #20358: test_curses is failing on Ubuntu 13.10 http://bugs.python.org/issue20358 closed by larry #20367: concurrent.futures.as_completed() fails when given duplicate F http://bugs.python.org/issue20367 closed by gvanrossum #20372: inspect.getfile should raise a TypeError if C object does not http://bugs.python.org/issue20372 closed by yselivanov #20373: Use test.script_helper.assert_python_ok() instead of subproces http://bugs.python.org/issue20373 closed by pitrou #20376: Argument Clinic: backslashes in docstrings are not escaped http://bugs.python.org/issue20376 closed by zach.ware #20381: Argument Clinic: expression default arguments broken http://bugs.python.org/issue20381 closed by zach.ware #20382: Typo in cStringIO tp_name http://bugs.python.org/issue20382 closed by haypo #20385: Argument Clinic: Support for __new__ not checking _PyArg_NoKey http://bugs.python.org/issue20385 closed by taleinat #20388: Argument Clinic doesn't handle module level functions with mod http://bugs.python.org/issue20388 closed by zach.ware #20390: Argument Clinic rollup patch, 2014/01/25 http://bugs.python.org/issue20390 closed by larry #20395: Extract generated clinic code in Modules/_pickle.c to separate http://bugs.python.org/issue20395 closed by serhiy.storchaka #20398: stem crashes python http://bugs.python.org/issue20398 closed by pitrou #20401: inspect.signature removes initial starred method params (bug) http://bugs.python.org/issue20401 closed by yselivanov #20407: heapq.nsmallest and heapq.nlargest don't accept a "key" parame http://bugs.python.org/issue20407 closed by rhettinger #20409: .readline() returned garble text http://bugs.python.org/issue20409 closed by r.david.murray #20411: IndexError in sys.__interactivehook__ with pyreadline installe http://bugs.python.org/issue20411 closed by jason.coombs #20418: socket.getaddrinfo fails for hostname that is all digits 0-9 http://bugs.python.org/issue20418 closed by neologix #20419: it's not possible to set ECDH curve name via ssl.wrap_socket http://bugs.python.org/issue20419 closed by pitrou #20422: Signature.from_builtin should raise a ValueError when no signa http://bugs.python.org/issue20422 closed by yselivanov #20424: _pyio.StringIO doesn't work with lone surrogates http://bugs.python.org/issue20424 closed by serhiy.storchaka #20425: inspect.Signature should work on decorated builtins http://bugs.python.org/issue20425 closed by yselivanov #20427: inspect.Signature should ensure that non-default params don't http://bugs.python.org/issue20427 closed by yselivanov #20436: test.regrtest is no more importable in 2.7 http://bugs.python.org/issue20436 closed by serhiy.storchaka #20441: Test_tcl.TclTest.test_split(list) failures on Windows, 2.7. http://bugs.python.org/issue20441 closed by serhiy.storchaka #20442: inspect: Document Signature & Parameter constructors' signatur http://bugs.python.org/issue20442 closed by yselivanov #20448: Adds missing backslash to devguide setup page http://bugs.python.org/issue20448 closed by sahutd #20449: _overlapped: read_buffer and write_buffer are misused http://bugs.python.org/issue20449 closed by haypo #20458: ``clinic.py --converters`` raises an exception http://bugs.python.org/issue20458 closed by zach.ware

1 0

version numbers mismatched in google search results.
by Vincent Davis Jan. 31, 2014

Jan. 31, 2014

When I do a google search the version numbers are mismatched with the linked page (or redirected). For example search for "python counter" I get the following results. (see attachment) It seems like the website is redirecting incorrectly. 1. collections - Python 3.3.3 documentation<http://docs.python.org/library/collections.html> 1. links to http://docs.python.org/library/collections.html 2. redirects to http://docs.python.org/2/library/collections.html 3. Which is python 2.7.6 2. itertools - Python 3.3.3 documentation<http://docs.python.org/library/itertools.html> 1. links to http://docs.python.org/library/itertools.html 2. redirects to http://docs.python.org/2/library/itertools.html 3. Which is again 2.7.6 3. 8.3. collections — Container datatypes - Python 3.3.3 documentation<http://docs.python.org/dev/library/collections> 1. This one seems correct, 3.40b2 2. links to http://docs.python.org/dev/library/collections The link to addresses are not really true, they look more like: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved… Vincent Davis

6 8

Re: [Python-Dev] version numbers mismatched in google search results.
by Benjamin Peterson Jan. 30, 2014

Jan. 30, 2014

On Sat, Jan 25, 2014, at 10:55 AM, Vincent Davis wrote: > On Sat, Jan 25, 2014 at 10:12 AM, Benjamin Peterson > <benjamin(a)python.org>wrote: > > > Internal links with no version redirect to the Python 2 version for > > backwards compatibility reasons. > > > > On Sat, Jan 25, 2014 at 10:26 AM, Georg Brandl <g.brandl(a)gmx.net> wrote: > > > Yep, and the URLs without version never served Python 3 docs as far as I > > can > > > remember, so I don't know where Google has these <title>s from. > > That is not consistent with > http://docs.python.org (no version number) redirects to > http://docs.python.org/3/ This is recent. It used to go to Python 2 docs. > Maybe this is related to google search results. > Seems wrong to me to point to 2.7 rather that 3.3 but I am sure there was > discussion about that. The internal links all used to go to Python 2. > > I looked (googled) for an example of a google link to current version of > python 3.3 documentation. My approach was to google "python" and > something > listed in > http://docs.python.org/3/whatsnew/3.3.html > These results all seem to point to http://docs.python.org/dev/library > i.e. > 3.4.0b2 > > > Vincent Davis

4 5

[RELEASED] Python 3.3.4 release candidate 1
by Georg Brandl Jan. 30, 2014

Jan. 30, 2014

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On behalf of the Python development team, I'm reasonably happy to announce the Python 3.3.4 release candidate 1. Python 3.3.4 includes several security fixes and over 120 bug fixes compared to the Python 3.3.3 release. This release fully supports OS X 10.9 Mavericks. In particular, this release fixes an issue that could cause previous versions of Python to crash when typing in interactive mode on OS X 10.9. Python 3.3 includes a range of improvements of the 3.x series, as well as easier porting between 2.x and 3.x. In total, almost 500 API items are new or improved in Python 3.3. For a more extensive list of changes in the 3.3 series, see http://docs.python.org/3.3/whatsnew/3.3.html and for the detailed changelog of 3.3.4, see http://docs.python.org/3.3/whatsnew/changelog.html To download Python 3.3.4 rc1 visit: http://www.python.org/download/releases/3.3.4/ This is a preview release, please report any bugs to http://bugs.python.org/ The final version is scheduled to be released in two weeks' time, on or about the 10th of February. Enjoy! - -- Georg Brandl, Release Manager georg at python.org (on behalf of the entire python-dev team and 3.3's contributors) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlLmDI4ACgkQN9GcIYhpnLAr6wCePRbHF80k5goV4RUDBA5FfkwF rLUAnRg0RpL/b6apv+Dt2/sgnUd3hTPA =Z4Ss -----END PGP SIGNATURE-----

4 3

weird docstring generated by argument clinic
by Stefan Behnel Jan. 30, 2014

Jan. 30, 2014

Hi, for two days now, the signature embedding tests in Cython have been failing with this (doctest) error: """ Expected: f_D(long double D) -> long double Got: f_DNone f_D(long double D) -> long double """ https://sage.math.washington.edu:8091/hudson/job/cython-devel-tests/1869/AR… The first line that Cython writes into the docstring is the "expected" one above. So far, all CPython versions have ignored it, Py3.4 then started picking it up at some point due to the argument clinic changes, but properly copied it over to the (IIRC) "__signature__" attribute. However, the recent change now lead to the above being dumped into the docstring. Could someone please quickly explain what the purpose of the first line is and why it says "None" at the end? Is there anything we should do on our side in order to fix this? Since many of our users embed their signatures for documentation purposes (it was the only way to make them visible in previous CPython versions and is supported by several tools, e.g. epydoc), this is a rather annoying result for them. Stefan

3 4

Need help designing subprocess API for Tulip
by Guido van Rossum Jan. 29, 2014

Jan. 29, 2014

If you're interested, please see us on the python-tulip mailing list at Google Groups. -- --Guido van Rossum (python.org/~guido)

2 1

Python 3.4, marshal dumps slower (version 3 protocol)
by Wolfgang Jan. 29, 2014

Jan. 29, 2014

Hi, I tested the latest beta from 3.4 (b3) and noticed there is a new marshal protocol version 3. The documentation is a little silent about the new features, not going into detail. I've run a performance test with the new protocol version and noticed the new version is two times slower in serialization than version 2. I tested it with a simple value tuple in a list (500000 elements). Nothing special. (happens only if the tuple contains also a tuple) Copy of the test code: from time import time from marshal import dumps def genData(amount=500000): for i in range(amount): yield (i, i+2, i*2, (i+1,i+4,i,4), "my string template %s" % i, 1.01*i, True) data = list(genData()) print(len(data)) t0 = time() result = dumps(data, 2) t1 = time() print("duration p2: %f" % (t1-t0)) t0 = time() result = dumps(data, 3) t1 = time() print("duration p3: %f" % (t1-t0)) Is the overhead for the recursion detection so high ? Note this happens only if there is a tuple in the tuple of the datalist. Regards, Wolfgang

11 15

Re: [Python-Dev] [Python-checkins] peps: Incorporate PEP 462 feedback
by Nick Coghlan Jan. 27, 2014

Jan. 27, 2014

On 27 January 2014 15:28, Terry Reedy <tjreedy(a)udel.edu> wrote: > On 1/26/2014 10:22 PM, nick.coghlan wrote: >> >> +Terry Reedy has suggested doing an initial filter which specifically >> looks >> +for approved documentation-only patches (~700 of the 4000+ open CPython >> +issues are pure documentation updates). This approach would avoid several >> +of the issues related to flaky tests and cross-platform testing, while >> +still allowing the rest of the automation flows to be worked out (such as >> +how to push a patch into the merge queue). >> + >> +The one downside to this approach is that Zuul wouldn't have complete >> +control of the merge process as it usually expects, so there would >> +potentially be additional coordination needed around that. > > > An essential part of my idea is that Zuul *would* have complete control > while pushing doc patches to avoid the otherwise inevitable push races. > Initially, this would be for a part of every day. While it has control, I > would expect it to push doc patches at intervals of perhaps a minute, or > even more rapidly with parallel testing. (Since doc patch rarely interfere > and would be expected to apply after pre-testing, little speculative testing > would need to be tossed.) "Exclusive control some of the time" is not the same thing as "exclusive control". It's not an impossible idea, but certainly not the way Zuul is currently designed to work :) >> +It may be worth keeping this approach as a fallback option if the initial >> +deployment proves to have more trouble with test reliability than is >> +anticipated. > > > I think a doc queue should be a permanent part of the system. There would > always be doc-only patches -- and I suspect even more than now. One of the > types of jobs on the main queue could be a periodic 'push all pending doc > patches' job. I would then think we should try splitting code + doc patches > into a code patch, pushed first, and a doc patch, added to the doc queue if > the code patch succeeded. That seems like added complexity for little gain - note that we can make the *test runner* smart about how it handles doc-only patches, by just checking the docs build and skipping the test run. Cheers, Nick. -- Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia

1 0

[RELEASED] Python 3.4.0b3
by Larry Hastings Jan. 27, 2014

Jan. 27, 2014

On behalf of the Python development team, I'm quite pleased to announce the third beta release of Python 3.4. This is a preview release, and its use is not recommended for production settings. Python 3.4 includes a range of improvements of the 3.x series, including hundreds of small improvements and bug fixes. Major new features and changes in the 3.4 release series include: * PEP 428, a "pathlib" module providing object-oriented filesystem paths * PEP 435, a standardized "enum" module * PEP 436, a build enhancement that will help generate introspection information for builtins * PEP 442, improved semantics for object finalization * PEP 443, adding single-dispatch generic functions to the standard library * PEP 445, a new C API for implementing custom memory allocators * PEP 446, changing file descriptors to not be inherited by default in subprocesses * PEP 450, a new "statistics" module * PEP 451, standardizing module metadata for Python's module import system * PEP 453, a bundled installer for the *pip* package manager * PEP 454, a new "tracemalloc" module for tracing Python memory allocations * PEP 456, a new hash algorithm for Python strings and binary data * PEP 3154, a new and improved protocol for pickled objects * PEP 3156, a new "asyncio" module, a new framework for asynchronous I/O Python 3.4 is now in "feature freeze", meaning that no new features will be added. The final release is projected for mid-March 2014. To download Python 3.4.0b3 visit: http://www.python.org/download/releases/3.4.0/ Please consider trying Python 3.4.0b3 with your code and reporting any new issues you notice to: http://bugs.python.org/ Enjoy! -- Larry Hastings, Release Manager larry at hastings.org (on behalf of the entire python-dev team and 3.4's contributors)

1 0

The Argument Clinic Derby is drawing to a close
by Larry Hastings Jan. 27, 2014

Jan. 27, 2014

The first release candidate of Python 3.4 will be tagged in about two weeks. We need to be completely done with the Derby by then. And it's going to take a while to review and iterate on the patches we've got. Therefore: I'm going to stop accepting submissions for new patches in two days. Patches posted to the issue tracker on or after Wednesday Jan 29 at 12:00:01am will not be accepted. If you have a patch you're still working on, you have until then to get it in. Please make sure that all patches, whether they've been posted yet or not, conform to the new conversion policy for the Derby: https://mail.python.org/pipermail/python-dev/2014-January/132066.html Thanks for participating! //arry/

3 5