New submission from HaiYun Yan lyricco...@gmail.com:
for example:
def calc(params):
i am factoring numbers.
# an expensive CPU cost function but
# passin params and return result are both lightweight
cachedcalc = collections.defaultdict(calc)
result =
Changes by Terry J. Reedy tjre...@udel.edu:
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nosy: +ezio.melotti, michael.foord
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Amaury Forgeot d'Arc amaur...@gmail.com added the comment:
-1. Besides compatibility issues, defaultdict is a dict: it contains data, and
is not meant to consume CPU when accessing items. Its default function should
return initial values, like 0 or an empty list.
I think what you want is
Charles-François Natali neolo...@free.fr added the comment:
On FreeBSD 6, os.kill(os.getpid(), signum) calls immediatly
the signal handler before the creation of the first thread (...),
whereas the signal handler is called later (when exactly?) after
the creation of the first thread (default
Charles-François Natali neolo...@free.fr added the comment:
Updated patch.
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Added file: http://bugs.python.org/file22545/heap_gc_deadlock_lockless.diff
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Georg Brandl ge...@python.org added the comment:
Can we get this committed for 3.2.1 then?
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Changes by Charles-François Natali neolo...@free.fr:
Added file: http://bugs.python.org/file22546/heap_gc_deadlock_lockless.diff
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Changes by Charles-François Natali neolo...@free.fr:
Removed file: http://bugs.python.org/file22477/heap_gc_deadlock.diff
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Changes by Charles-François Natali neolo...@free.fr:
Removed file: http://bugs.python.org/file22490/heap_gc_deadlock_lockless.diff
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Changes by Charles-François Natali neolo...@free.fr:
Removed file: http://bugs.python.org/file22545/heap_gc_deadlock_lockless.diff
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Amaury Forgeot d'Arc amaur...@gmail.com added the comment:
This looks a lot like the crasher described in
Lib/test/crashers/underlying_dict.py
For the record, the similar issue1517663 was closed even though there was a
patch, with a comment of the if it hurts, don't do it kind.
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STINNER Victor victor.stin...@haypocalc.com added the comment:
The last heap_gc_deadlock_lockless.diff looks good.
Note: please try to use different filenames for different versions of the same
patch. For example, add a number (heap_gc_deadlock_lockless-2.diff) to the name.
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Charles-François Natali neolo...@free.fr added the comment:
Digging a little deeper:
- in ./Modules/fpectlmodule.c, the longjmp() is actually not used at all (dead
code)
- in Modules/readline.c, the jmp_buf is correctly initialized (well, there's a
tiny race condition because SIGINT handler is
Charles-François Natali neolo...@free.fr added the comment:
And the backtrace leaves no doubt:
=== Backtrace: =
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f2415de61d7]
/lib/x86_64-linux-gnu/libc.so.6(+0xfe169)[0x7f2415de6169]
STINNER Victor victor.stin...@haypocalc.com added the comment:
I'm also in favor of reverting this commit.
Hum, the problem is that the Python test suite creates a lot of threads. Revert
the patch doesn't change anything for the test suite. I mean that all tests
relying on signal delivery
Charles-François Natali neolo...@free.fr added the comment:
Revert the patch doesn't change anything for the test suite.
I know, but at least it doesn't change the default - be it broken - behaviour
on FreeBSD 6.
I just fear that it is a little bit overkill just to support an old (?) OS.
Nadeem Vawda nadeem.va...@gmail.com added the comment:
Here's an updated patch implementing reference counting for ftpwrapper.
It changes the semantics of ftpwrapper.close() to postpone actually closing
the connection until all files have also been closed (like socket.close()).
--
Added
New submission from Stefan Krah stefan-use...@bytereef.org:
After 151142c0c5b1 Valgrind finds an invalid read in symtable.c, line 907:
st-st_cur = (PySTEntryObject *)PyList_GET_ITEM(st-st_stack, size - 2);
==14301== Memcheck, a memory error detector
==14301== Copyright (C) 2002-2010, and
Changes by Jesús Cea Avión j...@jcea.es:
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Changes by Jesús Cea Avión j...@jcea.es:
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Antoine Pitrou pit...@free.fr added the comment:
+if gc.isenabled():
+thresholds = gc.get_threshold()
+self.addCleanup(gc.set_threshold, *thresholds)
+else:
+gc.enable()
+self.addCleanup(gc.disable)
It seems you won't restore the
Antoine Pitrou pit...@free.fr added the comment:
I've had to split the three #undef's up to just before they're used.
I would really prefer to move up the offending #include rather than
sprinkle those #undef's all over the place.
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Python
Roundup Robot devnull@devnull added the comment:
New changeset 96a0788583c6 by Charles-François Natali in branch '2.7':
Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
http://hg.python.org/cpython/rev/96a0788583c6
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nosy: +python-dev
Roundup Robot devnull@devnull added the comment:
New changeset 874143242d79 by Charles-François Natali in branch '2.7':
Issue #12352: In test_free_from_gc(), restore the GC thresholds even if the GC
http://hg.python.org/cpython/rev/874143242d79
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Roundup Robot devnull@devnull added the comment:
New changeset 0d4ca1e77205 by Charles-François Natali in branch '3.1':
Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
http://hg.python.org/cpython/rev/0d4ca1e77205
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Roundup Robot devnull@devnull added the comment:
New changeset 37606505b227 by Charles-François Natali in branch '3.2':
Merge issue #12352: Fix a deadlock in multiprocessing.Heap when a block is
http://hg.python.org/cpython/rev/37606505b227
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Roundup Robot devnull@devnull added the comment:
New changeset fd8dc3746992 by Charles-François Natali in branch 'default':
Merge issue #12352: Fix a deadlock in multiprocessing.Heap when a block is
http://hg.python.org/cpython/rev/fd8dc3746992
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Éric Araujo mer...@netwok.org added the comment:
I don’t understand Fred’s replies.
The scope of this document is much larger than Python's documentation,
but extends to all projects written in Python that use Sphinx as their
documentation tool.
Really? docs.python.org/documenting is much
Éric Araujo mer...@netwok.org added the comment:
Looks like my message on Rietveld was not received or not read:
http://bugs.python.org/review/12442/diff/2951/7664#newcode776
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Changes by Éric Araujo mer...@netwok.org:
--
versions: +Python 3.3 -Python 3.2
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Éric Araujo mer...@netwok.org added the comment:
Closing as duplicate. The other report has more discussion.
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nosy: +eric.araujo
resolution: - duplicate
stage: - committed/rejected
status: open - closed
superseder: - WSGI, cgi.FieldStorage incompatibility
Éric Araujo mer...@netwok.org added the comment:
See also #1610654 and #6234.
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Éric Araujo mer...@netwok.org added the comment:
Now that web-sig has reached agreement on PEP , can an expert update the
status of this bug?
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Éric Araujo mer...@netwok.org added the comment:
This looks like a conversion bug indeed; network I/O should use bytes. Strange
that no-one caught this, but if there was no test and no users, then bugs can
slip.
See also #11066, #8077, #4953, #6234 (also adding some people from those bugs’
Éric Araujo mer...@netwok.org added the comment:
The docs indeed don’t say more that “Password database entries are reported as
a tuple-like object, whose attributes correspond to the members of the passwd
structure”; no mention is made of named tuple or struct sequence.
I think there is no
Changes by Éric Araujo mer...@netwok.org:
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Giampaolo Rodola' g.rod...@gmail.com added the comment:
I removed the percent usage from the returned namedtuple hence that comment is
no longer necessary.
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Éric Araujo mer...@netwok.org added the comment:
How about adding this near the top of documenting/building:
The sources for the Python documentation are included in the
Python repository, alongside code and tests. Follow the
instructions in the `Developpers' Guide`_ to get a copy of
Éric Araujo mer...@netwok.org added the comment:
Do you know if all compilers supported by CPython have a similar option?
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Roundup Robot devnull@devnull added the comment:
New changeset 6b3872a11299 by Benjamin Peterson in branch 'default':
fix possibily uninitialized memory usage (closes #12474)
http://hg.python.org/cpython/rev/6b3872a11299
--
nosy: +python-dev
resolution: - fixed
stage: -
Éric Araujo mer...@netwok.org added the comment:
Ah, excellent! Thanks for the new function. About using assertGreater and
friends in tests, as Ezio and I suggested, I have done the change in my working
copy and will commit it later.
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Éric Araujo mer...@netwok.org added the comment:
Okay. I guess you’ll use codecs.open in 2.7
Oh, Python 2.7... DistributionMetadata of distutils encodes most
values to byte strings (get_xxx() methods calls self._encode_field).
I forgot that. No change is needed in 2.7.
I checked, there is
Éric Araujo mer...@netwok.org added the comment:
Distutils is frozen. New features go into distutils2.
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Éric Araujo mer...@netwok.org added the comment:
Yes, the typo is also on default; I did not mention it, as the merge would have
shown it :)
I did not report the bug I found; if you could test all examples for 3.x-compat
and open a report, it would be great.
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Roundup Robot devnull@devnull added the comment:
New changeset 479973c6aa03 by Éric Araujo in branch 'default':
Clean up NEWS entry and tests for shutil.disk_usage (#12442)
http://hg.python.org/cpython/rev/479973c6aa03
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Giampaolo Rodola' g.rod...@gmail.com added the comment:
Thanks for the further fixes.
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Roundup Robot devnull@devnull added the comment:
New changeset edba722f3b02 by Vinay Sajip in branch '3.2':
Closes #12291: Fixed bug which was found when doing multiple loads from one
stream.
http://hg.python.org/cpython/rev/edba722f3b02
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nosy: +python-dev
resolution: - fixed
Roundup Robot devnull@devnull added the comment:
New changeset 42dd11028e94 by Vinay Sajip in branch 'default':
Closes #12291 for 3.3 - merged fix from 3.2.
http://hg.python.org/cpython/rev/42dd11028e94
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Georg Brandl ge...@python.org added the comment:
Thanks!
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Roundup Robot devnull@devnull added the comment:
New changeset 51c1f2cedb96 by Antoine Pitrou in branch 'default':
Issue #12456: fix a possible hang on shutdown of a
concurrent.futures.ProcessPoolExecutor.
http://hg.python.org/cpython/rev/51c1f2cedb96
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nosy: +python-dev
Changes by Antoine Pitrou pit...@free.fr:
--
resolution: - fixed
stage: patch review - committed/rejected
status: open - closed
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Changes by Petri Lehtinen pe...@digip.org:
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stage: needs patch - patch review
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Sandro Tosi sandro.t...@gmail.com added the comment:
It turns out it was just move() with a slightly outdated description; so I take
the occasion to fix some minor stuff in the doc.
--
keywords: +patch
stage: needs patch - patch review
Added file:
Changes by Sandro Tosi sandro.t...@gmail.com:
Added file: http://bugs.python.org/file22549/issue12043-27.patch
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Changes by R. David Murray rdmur...@bitdance.com:
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stage: commit review - committed/rejected
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Roundup Robot devnull@devnull added the comment:
New changeset 0f5ea42fb46c by R David Murray in branch '3.2':
#12147: make send_message correctly handle Sender and Resent- headers.
http://hg.python.org/cpython/rev/0f5ea42fb46c
New changeset b8cec4f3faaa by R David Murray in branch 'default':
R. David Murray rdmur...@bitdance.com added the comment:
I tweaked the patch a bit (mostly style/cosmetic) and added some additional
tests. Thanks, Nicolas!
--
resolution: - fixed
stage: patch review - committed/rejected
status: open - closed
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R. David Murray rdmur...@bitdance.com added the comment:
Indeed, Victor's comments on his patch say that he changed code that was in the
posted patch to say 'line.startswith(b'--')', and the original patch did use
b'--', but the code he checked in is missing the 'b'. He also asked for more
anatoly techtonik techto...@gmail.com added the comment:
On Mon, Jun 27, 2011 at 12:18 AM, Senthil Kumaran
rep...@bugs.python.org wrote:
As you said, the future version can be updated, but we
cannot go back with updating the documentation of the already released
versions.
Why?
--
anatoly t.
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