Mailman 3 May 2010 - Python-Dev

bugs.python.org down?
by Antoine Pitrou 12 May '10

12 May '10

Apparently the tracker has been unresponding for some time now, although port 80 still accepts connections. Regards Antoine.

3 2

urlparse.urlunsplit should be smarter about +
by David Abrahams 10 May '10

10 May '10

This is a bug report. bugs.python.org seems to be down. >>> from urlparse import * >>> urlunsplit(urlsplit('git+file:///foo/bar/baz')) git+file:/foo/bar/baz Note the dropped slashes after the colon. -- Dave Abrahams Meet me at BoostCon: http://www.boostcon.com BoostPro Computing http://www.boostpro.com

6 13

What's New text on future maintenance
by A.M. Kuchling 10 May '10

10 May '10

FYI: I've just added the text below to the "What's New" document for 2.7. I wanted to describe how 2.7 will probably be maintained, but didn't want to write anything that sounded like an iron-clad guarantee of a maintenance timespan. Does this text seem like a reasonable set of statements? --amk Python 2.7 is intended to be the last major release in the 2.x series. Though more major releases have not been absolutely ruled out, the Python maintainers are planning to focus their efforts on Python 3.x. This means that 2.7 will remain in place for a long time, running production systems that have not been ported to Python 3.x. Two consequences of the long-term significance of 2.7 are: * It's very likely the 2.7 release will have a longer period of maintenance compared to earlier 2.x versions. Python 2.7 will continue to be maintained while the transition to 3.x is in progress, and that transition will itself be lengthy. Most 2.x versions are maintained for about 4 years, from the first to the last bugfix release; patchlevel releases for Python 2.7 will probably be made for at least 6 years. * Because 2.7 will be running production applications, a policy decision was made to silence warnings only of interest to developers by default. Silencing :exc:`DeprecationWarning` and its descendants prevents users from seeing warnings triggered by an application. (Carried out in :issue:`7319`.) You can re-enable display of :exc:`DeprecationWarning` messages by running Python with the :option:`-Wdefault` (short form: :option:`-Wd`) switch, or you can add ``warnings.simplefilter('default')`` to your code.

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Re: [Python-Dev] Running Clang 2.7's static analyzer over the code base
by Brett Cannon 09 May '10

09 May '10

I'll just do a single entry saying that the static analyzer was used and not list the files. And in reply to Benjamin's question about the whitespace, I guess it actually doesn't matter. More important to clean up in py3k. On May 3, 2010 4:00 PM, "Antoine Pitrou" <solipsis(a)pitrou.net> wrote: Benjamin Peterson <benjamin <at> python.org> writes: > > 2010/5/3 Brett Cannon <brett <at> python.org>: > > When I check in these changes I will do it file by file, but my question is > > how to handle M... Indeed. At most a single NEWS entry sounds sufficient. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev(a)python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/brett%40python.org

12 25

[RELEASED] Python 2.7 beta 2
by Benjamin Peterson 09 May '10

09 May '10

On behalf of the Python development team, I'm elated to announce the second beta release of Python 2.7. Python 2.7 is scheduled (by Guido and Python-dev) to be the last major version in the 2.x series. 2.7 will have an extended period of bugfix maintenance. 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, 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 visit: http://www.python.org/download/releases/2.7/ While this is a development release and is thus not suitable for production use, we encourage Python application and library developers to test the release with their code and report any bugs they encounter to: http://bugs.python.org/ 2.7 documentation can be found at: http://docs.python.org/2.7/ Enjoy! -- Benjamin Peterson 2.7 Release Manager benjamin at python.org (on behalf of the entire python-dev team and 2.7's contributors)

2 1

Did I miss the decision to untabify all of the C code?
by Eric Smith 09 May '10

09 May '10

It looks like we're moving ahead with removing tabs. Was there consensus on this? Last I saw Antoine had written a script that might do what we want, but hadn't been thoroughly tested. Now I've seen a few checkins for files that have been run through the script. What gives? And why do this so close to 2.7? I don't think it will cause any problems, but it's hard to review commits to ensure they have no changes when there's a rush of large commits near a release. Eric.

7 9

Parallel test execution on buildbot
by exarkun＠twistedmatrix.com 09 May '10

09 May '10

Hi all, Has anyone considered using regrtest's -j option in the buildbot configuration to speed up the test runs? Antoine Pitrou pointed out that even for single CPU slaves, this could be a win due to the number of tests that spend time sleeping or waiting on I/O. And on slaves with multiple CPUs it would clearly be even better. eg, I don't know what hardware is actually in the Solaris slave (bot loewis-sun), but if it has the full 4 UltraSPARCs that it could, then running with -j4 or -j5 there might bring its runtime down from nearly 100 minutes to 20 or 25 - competitive with some of the more reasonable slaves. Jean-Paul

6 6

bugs.python.org intermittently not working.
by Terry Reedy 08 May '10

08 May '10

Saturday eve (us, eastern). Last night I had intermittent problems with bugs.python.org: issues not being fetched, submissions not being recorded. David Abrahams reported 'bugs.python.org seems to be down' is his urlparse thread. Right not, I have a fetch and submission 'loading' for over a minute, after fetching an issue a minute before. The new beta2 page came up with no problems. The submission just stopped with Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /issue8641. Reason: Error reading from remote server Apache/2.2.9 (Debian) mod_python/3.3.1 Python/2.5.2 mod_ssl/2.2.9 OpenSSL/0.9.8g Server at bugs.python.org Port 80

1 0

audience-instructors for Teach Me Python Bugfixing needed
by Catherine Devlin 07 May '10

07 May '10

Hey, everybody... I'm Catherine, a database administrator who makes up excuses to write Python instead. I'm not actually here as a core developer, but as somebody who hopes to become a developer and recruit some more, which brings me to my question: Who lives close enough to Ohio to make it to PyOhio this summer? I want to use PyOhio to create new Python devs (including myself), but I need some existing ones to seed the process. I need a few veterans (3?) who can commit to come to PyOhio and take part as audience/instructors in a "Teach Me [Python core / standard library] Bugfixing" session. (See http://catherinedevlin.blogspot.com/2010/04/bugfixing-at-pyohio.html.) The PyOhio Call for Proposals is up May 10 so I'd better find you quick! I'm pretty much ignorant enough to lead a Teach Me session. In a Teach Me session, the person at the projector *doesn't* know the material. Instead, she asks the audience questions ("How do I find a bug to work on?"), and they talk her through it. It's based on Teach Me Twisted, a mind-blowing session Steve Holden led at PyCon 2008 ( http://catherinedevlin.blogspot.com/2008/03/teach-me-twisted.html). I think it's a fantastic way to teach, but it depends on some veterans being in the audience. There are folks in the greater Python community eager to get hold of a video of such a session... if we do this well, it could become an important tool in keeping the quality of core Python code high. And all I need from you, my audience-instructors, is a promise to show up (no preparation necessary). Can you make it? Can you pass the appeal on to others you know of? Thanks! Hope to see you in July! -- - Catherine http://catherinedevlin.blogspot.com/ *** PyOhio 2010 * July 31 - Aug 1 * Columbus, OH * pyohio.org ***

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Summary of Python tracker Issues
by Python tracker 07 May '10

07 May '10

ACTIVITY SUMMARY (2010-04-30 - 2010-05-07) 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. 2658 open (+44) / 17807 closed (+24) / 20465 total (+68) Open issues with patches: 1081 Average duration of open issues: 724 days. Median duration of open issues: 494 days. Open Issues Breakdown open 2639 (+44) languishing 12 ( +0) pending 6 ( +0) Issues Created Or Reopened (71) _______________________________ Bug in range() function for large values 2010-05-01 CLOSED http://bugs.python.org/issue1533 reopened mark.dickinson patch, 26backport configure: allow user-provided CFLAGS to override AC_PROG_CC d 2010-05-05 CLOSED http://bugs.python.org/issue8211 reopened mark.dickinson patch regrtest: use backslashreplace error handler for stdout 2010-05-05 http://bugs.python.org/issue8533 reopened haypo patch Add missing tests for FlushKey, LoadKey, and SaveKey in winreg 2010-04-30 http://bugs.python.org/issue8579 created brian.curtin Problem urllib2.URLError 2010-04-30 CLOSED http://bugs.python.org/issue8580 created m_enanos Logging handlers do not handle double-closing very well 2010-04-30 CLOSED http://bugs.python.org/issue8581 created Jason.Baker patch urllib.urlretrieve fails with ValueError: Invalid format strin 2010-04-30 CLOSED http://bugs.python.org/issue8582 created Jason.Gross patch Hardcoded namespace_separator in the cElementTree.XMLParser 2010-04-30 http://bugs.python.org/issue8583 created dmtr patch test_multiprocessing skips some tests 2010-04-30 http://bugs.python.org/issue8584 created pitrou zipimporter.find_module is untested 2010-05-01 http://bugs.python.org/issue8585 created alex test_imp.py test failures on Py3K Mac OS X 2010-05-01 CLOSED http://bugs.python.org/issue8586 created michael.foord test_import.py test failures on Py3K Mac OS X 2010-05-01 CLOSED http://bugs.python.org/issue8587 created michael.foord test_urllib2.py test failures on Py3K Mac OS X 2010-05-01 http://bugs.python.org/issue8588 created michael.foord test_warnings.CEnvironmentVariableTests.test_nonascii fails un 2010-05-01 http://bugs.python.org/issue8589 created michael.foord test_httpservers.CGIHTTPServerTestCase failure on 3.1-maint Ma 2010-05-01 http://bugs.python.org/issue8590 created michael.foord update mkpkg to latest coding standards 2010-05-01 http://bugs.python.org/issue8591 created meatballhat 'y' does not check for embedded NUL bytes 2010-05-01 http://bugs.python.org/issue8592 created pitrou Improve c-api/arg.rst 2010-05-01 CLOSED http://bugs.python.org/issue8593 created pitrou patch Add a "source_address" option to ftplib 2010-05-01 http://bugs.python.org/issue8594 created giampaolo.rodola patch, needs review Explain the default timeout in http-client-related libraries 2010-05-02 http://bugs.python.org/issue8595 created oddthinking crypt blowfish 'ignores' salt 2010-05-02 CLOSED http://bugs.python.org/issue8596 created pvo build out-of-line asm on Windows 2010-05-02 http://bugs.python.org/issue8597 created zooko patch test/support: don't use localhost as IPv6 host name 2010-05-02 http://bugs.python.org/issue8598 created haypo patch _execvpe behaves inconsistently when PATH includes a filename 2010-05-02 CLOSED http://bugs.python.org/issue8599 created Oren_Held test_gdb failures 2010-05-03 CLOSED http://bugs.python.org/issue8600 created pitrou bz2.BZ2File should support "with" protocol per PEP 343 2010-05-03 CLOSED http://bugs.python.org/issue8601 created Matt.Wartell documentation of bz2 module mildly erroneous 2010-05-03 http://bugs.python.org/issue8602 created Matt.Wartell Create a bytes version of os.environ and getenvb() 2010-05-03 CLOSED http://bugs.python.org/issue8603 created haypo patch Adding an atomic FS write API 2010-05-03 http://bugs.python.org/issue8604 created olemis test_gdb can fail with compiler opts 2010-05-03 http://bugs.python.org/issue8605 created pitrou patch OSF is not supported anymore 2010-05-03 CLOSED http://bugs.python.org/issue8606 created jcea OSX: duplicate -arch flags in CFLAGS breaks sysconfig 2010-05-04 CLOSED http://bugs.python.org/issue8607 created robind fix_import prefixes "." to already relative imports 2010-05-04 CLOSED http://bugs.python.org/issue8608 created shlomme patch itertools: problem with nested groupby, list() 2010-05-04 CLOSED http://bugs.python.org/issue8609 created nicki Python3/POSIX: errors if file system encoding is None 2010-05-04 http://bugs.python.org/issue8610 created haypo patch Python3 doesn't support locale different than utf8 and an non- 2010-05-04 http://bugs.python.org/issue8611 created haypo multiprocessing Queue module failes to send INIConfig objects 2010-05-04 http://bugs.python.org/issue8612 created Zaar.Hai Decimal module flags undetermined when a signal is trapped. 2010-05-04 http://bugs.python.org/issue8613 created mark.dickinson test_gzip fails on OS X 2010-05-04 CLOSED http://bugs.python.org/issue8614 created mark.dickinson turtle.py - backport of 3.1 features 2010-05-04 CLOSED http://bugs.python.org/issue8615 created gregorlingl patch Changes to content of Demo/turtle 2010-05-04 http://bugs.python.org/issue8616 created gregorlingl patch Non-existent variables documented 2010-05-04 http://bugs.python.org/issue8617 created dabrahams test_winsound failing on Windows Server 2008 2010-05-05 http://bugs.python.org/issue8618 created brian.curtin Doc bug for urllib.request._urlopener in Python 3.1+ 2010-05-05 CLOSED http://bugs.python.org/issue8619 created sri wrong truncation of line in Cmd.cmd 2010-05-05 http://bugs.python.org/issue8620 created omatt uuid.uuid4() generates non-unique values on OSX 2010-05-05 CLOSED http://bugs.python.org/issue8621 created yig patch Add PYTHONFSENCODING environment variable 2010-05-05 http://bugs.python.org/issue8622 created lemburg Aliasing warnings in socketmodule.c 2010-05-05 http://bugs.python.org/issue8623 created pitrou Aliasing warnings in multiprocessing.c 2010-05-05 http://bugs.python.org/issue8624 created pitrou --with-pydebug builds now include -O2 by default 2010-05-05 CLOSED http://bugs.python.org/issue8625 created mark.dickinson patch TypeError: rsplit() takes no keyword arguments 2010-05-05 http://bugs.python.org/issue8626 created dabrahams easy Unchecked PyErr_WarnPy3k return value in Objects/typeobject.c 2010-05-05 http://bugs.python.org/issue8627 created mark.dickinson Incorrect numbers.Complex.imag documentation 2010-05-05 CLOSED http://bugs.python.org/issue8628 created durban Fix test_ssl failures under 2.6/3.1 with OpenSSL 1.0.0 2010-05-05 CLOSED http://bugs.python.org/issue8629 created pitrou patch Keepends param in codec readline(s) 2010-05-05 http://bugs.python.org/issue8630 created amccampos subprocess.Popen.communicate(...) hangs on Windows 2010-05-05 http://bugs.python.org/issue8631 created Alex Quinn subprocess doesn't handle Windows built-in commands as os.syst 2010-05-05 CLOSED http://bugs.python.org/issue8632 created Alex Quinn tarfile doesn't support undecodable filename in PAX format 2010-05-05 http://bugs.python.org/issue8633 created haypo get method for dbm interface 2010-05-06 http://bugs.python.org/issue8634 created Kain94 enumerate() docstring doesn't cover optional start argument 2010-05-06 http://bugs.python.org/issue8635 created ncoghlan easy enumerate() test cases do not cover optional start argument 2010-05-06 http://bugs.python.org/issue8636 created scott.dial patch pydoc should respect MANPAGER over PAGER. 2010-05-06 http://bugs.python.org/issue8637 created jsbronder patch Remove suggestion for name mangling from the tutorial 2010-05-06 http://bugs.python.org/issue8638 created LucianU Allow callable objects in inspect.getargspec 2010-05-06 http://bugs.python.org/issue8639 created gsakkis subprocess: add envb argument to Popen constructor (Python3, P 2010-05-06 http://bugs.python.org/issue8640 created haypo IDLE 3 doesn't highlights b"", but u"" 2010-05-07 http://bugs.python.org/issue8641 created puzzlet json.loads description 2010-05-07 http://bugs.python.org/issue8642 created mft incorrect timedelta yielded by two on-the-fly nows subtraction 2010-05-07 CLOSED http://bugs.python.org/issue8643 created mykhal timedelta.total_seconds needlessly inaccurate, especially for 2010-05-07 http://bugs.python.org/issue8644 created mark.dickinson PyUnicode_AsEncodedObject is undocumented 2010-05-07 http://bugs.python.org/issue8645 created stutzbach PyUnicode_EncodeDecimal is undocumented 2010-05-07 http://bugs.python.org/issue8646 created stutzbach Issues Now Closed (55) ______________________ Bug in range() function for large values 6 days http://bugs.python.org/issue1533 mark.dickinson patch, 26backport Adding start to enumerate() 724 days http://bugs.python.org/issue2831 scott.dial patch MacOS X framework install to non-standard directory fails 622 days http://bugs.python.org/issue3646 ronaldoussoren patch shutil.copyfile() leaks file descriptors when disk fills 546 days http://bugs.python.org/issue4265 haypo patch GC stats not accurate because of debug overhead 501 days http://bugs.python.org/issue4687 pitrou patch Strange behavior when I logout() with IMAP4_SSL 403 days http://bugs.python.org/issue5565 r.david.murray email.encoders.encode_7or8bit(): typo "iso-2202". "iso-2022" 146 days http://bugs.python.org/issue7472 r.david.murray patch, easy random.choice should accept a set as input 141 days http://bugs.python.org/issue7522 Thomas.Dybdahl.Ahle copyright clarification for audiotest.au 103 days http://bugs.python.org/issue7755 barry needs review Minor bug in 2.6.4 related to cleanup at end of program 92 days http://bugs.python.org/issue7835 cburroughs patch, easy platform module doesn't detect Windows 7 89 days http://bugs.python.org/issue7863 lemburg patch, needs review io close() swallowing exceptions 89 days http://bugs.python.org/issue7865 pakal patch urlparse.urlsplit mishandles novel schemes 84 days http://bugs.python.org/issue7904 merwok remove leftover macos9 support code 83 days http://bugs.python.org/issue7908 ronaldoussoren patch, needs review Allow Arbitrary OpenID providers in this bug tracker 70 days http://bugs.python.org/issue8008 jcea configure: allow user-provided CFLAGS to override AC_PROG_CC d 0 days http://bugs.python.org/issue8211 lemburg patch <unprintable AssertionError object> message in unittest traceb 30 days http://bugs.python.org/issue8313 haypo patch None shouldn't be passed to traceback.format_exception 24 days http://bugs.python.org/issue8388 michael.foord tarfile: use surrogates for undecode fields 23 days http://bugs.python.org/issue8390 haypo patch Set operations don't work for dictionary views 22 days http://bugs.python.org/issue8404 rhettinger patch unittest Module Problem with different Kinds of Invocation 18 days http://bugs.python.org/issue8454 michael.foord raise test_support.TestSkipped() is used outside main() / test 17 days http://bugs.python.org/issue8462 haypo asyncore.dispatcher's __getattr__ method produces confusing ef 15 days http://bugs.python.org/issue8483 giampaolo.rodola patch regrtest: add a minimal "progress bar" 8 days http://bugs.python.org/issue8560 haypo patch Always run regrtest.py with -bb 2 days http://bugs.python.org/issue8565 haypo patch 2to3 should run under python 2.5 2 days http://bugs.python.org/issue8566 jyasskin patch, patch decimal module doesn't respect precedence rules for exceptiona 5 days http://bugs.python.org/issue8567 mark.dickinson patch Buggy _strerror in asyncore 7 days http://bugs.python.org/issue8573 giampaolo.rodola easy Problem urllib2.URLError 0 days http://bugs.python.org/issue8580 r.david.murray Logging handlers do not handle double-closing very well 3 days http://bugs.python.org/issue8581 vinay.sajip patch urllib.urlretrieve fails with ValueError: Invalid format strin 0 days http://bugs.python.org/issue8582 orsenthil patch test_imp.py test failures on Py3K Mac OS X 3 days http://bugs.python.org/issue8586 michael.foord test_import.py test failures on Py3K Mac OS X 0 days http://bugs.python.org/issue8587 michael.foord Improve c-api/arg.rst 2 days http://bugs.python.org/issue8593 pitrou patch crypt blowfish 'ignores' salt 1 days http://bugs.python.org/issue8596 mark.dickinson _execvpe behaves inconsistently when PATH includes a filename 0 days http://bugs.python.org/issue8599 r.david.murray test_gdb failures 3 days http://bugs.python.org/issue8600 pitrou bz2.BZ2File should support "with" protocol per PEP 343 0 days http://bugs.python.org/issue8601 Matt.Wartell Create a bytes version of os.environ and getenvb() 4 days http://bugs.python.org/issue8603 haypo patch OSF is not supported anymore 0 days http://bugs.python.org/issue8606 jcea OSX: duplicate -arch flags in CFLAGS breaks sysconfig 0 days http://bugs.python.org/issue8607 r.david.murray fix_import prefixes "." to already relative imports 0 days http://bugs.python.org/issue8608 r.david.murray patch itertools: problem with nested groupby, list() 0 days http://bugs.python.org/issue8609 nicki test_gzip fails on OS X 0 days http://bugs.python.org/issue8614 mark.dickinson turtle.py - backport of 3.1 features 0 days http://bugs.python.org/issue8615 benjamin.peterson patch Doc bug for urllib.request._urlopener in Python 3.1+ 1 days http://bugs.python.org/issue8619 r.david.murray uuid.uuid4() generates non-unique values on OSX 0 days http://bugs.python.org/issue8621 ronaldoussoren patch --with-pydebug builds now include -O2 by default 0 days http://bugs.python.org/issue8625 haypo patch Incorrect numbers.Complex.imag documentation 0 days http://bugs.python.org/issue8628 mark.dickinson Fix test_ssl failures under 2.6/3.1 with OpenSSL 1.0.0 1 days http://bugs.python.org/issue8629 pitrou patch subprocess doesn't handle Windows built-in commands as os.syst 0 days http://bugs.python.org/issue8632 Alex Quinn incorrect timedelta yielded by two on-the-fly nows subtraction 0 days http://bugs.python.org/issue8643 mark.dickinson bdist_deb - Debian packager 440 days http://bugs.python.org/issue1054967 astraw patch URI parsing library 8 days http://bugs.python.org/issue1462525 orsenthil patch Use Py_ssize_t for rangeobject members 1354 days http://bugs.python.org/issue1540617 mark.dickinson patch Top Issues Most Discussed (10) ______________________________ 42 Bug in range() function for large values 6 days closed http://bugs.python.org/issue1533 31 Create a bytes version of os.environ and getenvb() 4 days closed http://bugs.python.org/issue8603 21 test_support.find_unused_port can cause socket conflicts on Win 7 days open http://bugs.python.org/issue8576 16 test_imp.py test failures on Py3K Mac OS X 3 days closed http://bugs.python.org/issue8586 15 Create fsencode() and fsdecode() functions in os.path 14 days open http://bugs.python.org/issue8514 13 Python3/POSIX: errors if file system encoding is None 3 days open http://bugs.python.org/issue8610 12 Adding an atomic FS write API 4 days open http://bugs.python.org/issue8604 12 Add exception logging function to syslog module 45 days open http://bugs.python.org/issue8214 11 <unprintable AssertionError object> message in unittest traceba 30 days closed http://bugs.python.org/issue8313 9 httplib getheader() throws error instead of default 8 days open http://bugs.python.org/issue8572

1 0

Issue #8610: Set default file system encoding to ascii on error?
by Victor Stinner 07 May '10

07 May '10

Python 3.0 introduced PyUnicode_DecodeFSDefault() and PyUnicode_DecodeFSDefaultAndSize() functions. These functions fallback to UTF-8 if getting the file system encoding failed or the encoding is unknown (there is not nl_langinfo(CODESET) function). UTF-8 is not a good choice for the fallback because it's incompatible with other encodings like Latin1. I would like to fallback to ASCII on error which is compatible with all encodings (thanks to surrogateescape). I would like to ensure that sys.getfilesystemencoding() result cannot be None, because Python 3.2 uses it on Unix to decode os.environb and to encode filenames in subprocess. I can implement a fallback for os.environb and subprocess (and other functions calling sys.getfilesystemencoding()), but I prefer to have a reliable sys.getfilesystemencoding() function. This change doesn't concern Windows and Mac OS X because the encoding is hardcoded (mbcs, utf-8). On Unix, I don't know in which case nl_langinfo() can fail. Empty environment is not an error: nl_langinfo(CODESET) returns "ascii". I think that few (or no) user would notice this change. -- Victor Stinner http://www.haypocalc.com/

3 3

Running Clang 2.7's static analyzer over the code base
by Brett Cannon 06 May '10

06 May '10

Since 2.7 is probably going to exist for a while, I am running Clang 2.7's static analyzer (``clang --static``) over trunk. It's mostly just finding stuff like unneeded variable initialization or variables that are never used (compilation is picking up unused returned values, almost all from PyObject_INIT). When I check in these changes I will do it file by file, but my question is how to handle Misc/NEWS. I have gone through the underscores and the 'a's in Modules and already have six modified files, so the final count might be a little high. Do people want individual entries per file, or simply a single entry that lists each file modified? We should probably go through the C code and fix the whitespace before we hit 2.7 final (there is a ton of lines with extraneous spaces). -Brett

5 7

Fwd: broken mailing list links in PEP(s?)
by Michael Foord 06 May '10

06 May '10

Hello all, It looks like the changes to the python-dev mailman archives broke some of the links in PEPs. All the best, Michael Foord -------- Original Message -------- Subject: broken mailing list links in PEP(s?) Date: Tue, 4 May 2010 20:22:57 -0700 From: Bayle Shanks <bayle.shanks(a)gmail.com> To: webmaster(a)python.org On http://www.python.org/dev/peps/pep-0225/ , in the section "Credits and archives", there are a bunch of links like http://mail.python.org/pipermail/python-list/2000-July/108893.html which are broken thanks, bayle

5 5

slight release schedule change
by Benjamin Peterson 04 May '10

04 May '10

Hi, I'm sorry I neglected to mention this before. I'm delaying all 2.7 releases a week because of beta 1's lateness. I've now updated PEP 373. So, beta 2 will be this Saturday. -- Regards, Benjamin

1 0

Daily DMGs
by "Martin v. Löwis" 04 May '10

04 May '10

David Bolen and I started producing daily OSX installers, at http://www.python.org/dev/daily-dmg/ If you find problems with these, please report them to bugs.python.org. Regards, Martin

1 0

Should we drop active support of OSF/1?
by Jesus Cea 03 May '10

03 May '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 We don't have any buildbot backing this system. OSF/1 last version was in 1994, was picked by Digital (Tru64 Unix). Last version of Tru64 was released in late 2006. Now Digital is owned by HP with its own Unix (HP-UX). Maybe we can drop OSF/1 safely supporting Tru64 yet, but we don't have any buildbot running any of this systems... Deprecated systems are documented in PEP-11. - -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ jcea(a)jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:jcea@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQCVAwUBS9XT9Zlgi5GaxT1NAQJkVgP9G6mj+Cm3BoXrAYQQXqfGevGWQhwQENgI ONH2B4XzOQZv9JTorDcWjU9Onf7s3YJ0AZk5pBxuekDOoblFKEz0yU3X40HLhU3N 8dxJ6aRNYBpPLYFbJp2tuGb2rs/VpfuKPAlmKxcRKUvC7heyxokFyXJnnXy2i50r XnHYwfz5PG8= =SseK -----END PGP SIGNATURE-----

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Alias for distutils.file_util.write_file in e.g. shutils
by Olemis Lang 03 May '10

03 May '10

Hello ! Often I have the contents to be written in a file at a given path that I know as well. I recently tried to find a function in stdlib to do that and to my surprise this is what I found : - Such function exists - It's `distutils.file_util.write_file` IMO the last place where people'd look for such a function is inside `distutils` package. Besides I reviewed modules listed under `File and directory access` category in `Library Reference` and found nothing even similar. Q: - Is it a good idea to provide a similar function in e.g. shutils module ? Probably there's already a better way to do this and my comment is just irrelevant . Anyway is just a suggestion ;o) -- Regards, Olemis. Blog ES: http://simelo-es.blogspot.com/ Blog EN: http://simelo-en.blogspot.com/ Featured article: Soporte para AMF (RPC) en Trac - http://feedproxy.google.com/~r/simelo-es/~3/9dYgHeK5Be8/soporte-para-amf-rp…

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Frequency of the dev docs autobuild
by Nick Coghlan 02 May '10

02 May '10

Does the online dev version of the docs build in response to docs checkins, or just once a day? (And is that written down somewhere and I've just forgotten where to look...) Cheers, Nick. -- Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia ---------------------------------------------------------------

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Enhanced tracker privileges for "dangerjim" to do triage.
by Sean Reifschneider 02 May '10

02 May '10

I'm trying to get a good friend of mine to start doing bug triage on Python. As part of my trying to mentor him on it, I've found that many of the common things I do in triage, like setting a priority for priorityless bugs, assigning them to people who obviously are the next step, requires enhanced privileges. He has no reputation in the Python community, so I'd be up for getting him started on things that require fewer privileges like verifying older patches still apply against newer Pythons, or maybe summarizing priority/assignment changes to the list and having someone (possibly me) make the changes, etc... However, I will step up for him and say that I've known him a decade, and he's very trustworthy. He has been the president (we call that position Maximum Leader) of our Linux Users Group here for 5 years or so. Thoughts? Thanks, Sean -- Sean Reifschneider, Member of Technical Staff <jafo(a)tummy.com> tummy.com, ltd. - Linux Consulting since 1995: Ask me about High Availability

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PEP or issue recording rationale for allowing multiple context managers?
by Nick Coghlan 02 May '10

02 May '10

I was looking for a reference for the addition of multiple context manager support to with statements in 3.1 and 2.7 and came up empty (aside from the initial python-ideas thread [1] that I linked to from PEP 377). I was hoping to find something that clearly spelled out: - the two major flaws in contextlib.nested* - the parallel with import statements for the precise chosen syntax - Guido's blessing to go ahead and do it *Those flaws being - that __init__/__new__ methods of inner context managers aren't covered by outer context managers - that outer context managers can't suppress exceptions from inner __enter__ methods Note that I'm not complaining about the decision itself (that would be silly, since I agree with the outcome), I'm just trying to find something to point to about it that is a little more concrete than a python-ideas thread. Cheers, Nick. [1] http://mail.python.org/pipermail/python-ideas/2009-March/003188.html -- Nick Coghlan | ncoghlan(a)gmail.com | Brisbane, Australia ---------------------------------------------------------------

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Re: [Python-Dev] [PEP 3148] futures - execute computations asynchronously
by P.J. Eby 02 May '10

02 May '10

At 10:59 AM 3/7/2010 -0800, Jeffrey Yasskin wrote: >So is it that you just don't like the idea of blocking, and want to >stop anything that relies on it from getting into the standard library? Um, no. As I said before, call it a "parallel task queue" or "parallel task manager" or something to that general effect and I'm on board. It may not be in the Zen of Python, but ISTM that names should generally follow use cases. It is something of a corollary to "one obvious way to do it", in that if you see something whose name matches what you want to do, then it should be obvious that that's the way in question. ;-) The use cases for "parallel task queues", however, are a subset of those for "futures" in the general case. Since the proposed module addresses most of the former but very little of the latter, calling it futures is inappropriate. Specifically, it's: 1. Confusing to people who don't know what futures are (see e.g R.D. Murray's post), and 2. Underpowered for people who expect/want a more fully-featured futures system along the lines of E or Deferreds. It seems that the only people for whom it's an intuitively correct description are people who've only had experience with more limited futures models (like Java's). However, these people should not have a problem understanding the notion of parallel task queueing or task management, so changing the name isn't really a loss for them, and it's a gain for everybody else. > Given the set_result and set_exception methods, it's pretty > straightforward to fill in the value of a future from something > that isn't purely computational. Those are described as "internal" methods in the PEP; by contrast, the Deferred equivalents are part of the public API. > Given a way to register "on-done" callbacks with the future, it > would be straightforward to wait for a future without blocking, too. Yes, and with a few more additions besides that one, you might be on the way to an actual competitor for Deferreds. For example: retry support, chaining, logging, API for transparent result processing, coroutine support, co-ordination tools like locks, sempaphores and queues, etc. These are all things you would very likely want or need if you actually wanted to write a program using futures as *your main computational model*, vs. just needing to toss out some parallel tasks in a primarily synchronous program. Of course, Deferreds are indeed overkill if all you're ever going to want is a few parallel tasks, unless you're already skilled in using Twisted or some wrapper for it. So, I totally support having a simple task queue in the stdlib, as there are definitely times I would've used such a thing for a quick script, if it were available. However, I've *also* had use cases for using futures as a computational model, and so that's what I originally thought this PEP was about. After the use cases were clarified, though, it seems to me that *calling* it futures is a bad idea, because it's really just a nice task queuing system. I'm +1 on adding a nice task queuing system, -1 on calling it by any other name. ;-)

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