gmane.comp.python.bugs

[issue17936] O(n**2) behaviour when adding/removing classes

Antoine Pitrou — 2013-05-25T13:16:23

Antoine Pitrou added the comment:

Note that making tp_subclasses a dict makes the __subclasses__ return order undefined. I don't think I've ever seen __subclasses__ actually used, so I'm not convinced it's a problem, but perhaps it's worth floating the idea on python-dev.

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[issue12641] Remove -mno-cygwin from distutils

Oscar Benjamin — 2013-05-25T12:54:48

Oscar Benjamin added the comment:

On 25 May 2013 04:43, Renato Silva <report< at >bugs.python.org> wrote:

In context it should be clear that the statement  "in gcc 4.x it
produces an error preventing build" refers to Cygwin's gcc and not
MinGW's. Which gcc are you referring to?


Yes gcc 4.6 would fail because it won't accept the -mno-cygwin option.
That does not mean that any other MinGW gcc ever *required* the
-mno-cygwin option for anything. The MinGW devs have repeatedly and
explicitly stated that the -mno-cygwin option never did anything
useful when used with MinGW:

http://permalink.gmane.org/gmane.comp.gnu.mingw.user/42097
http://permalink.gmane.org/gmane.comp.gnu.mingw.user/42101
http://permalink.gmane.org/gmane.comp.gnu.mingw.user/42104


Yes but that particular error message is coming from Cygwin's gcc not
MinGW. As stated by the Pidgin dev in that message the OP does not
know which compiler they are using:
http://pidgin.im/pipermail/support/2011-December/011159.html

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[issue13612] xml.etree.ElementTree says unknown encoding of a regularencoding

Eli Bendersky — 2013-05-25T12:32:56

Eli Bendersky added the comment:

A few notes:

1. If by C API version you mean PyExpat_CAPI_MAGIC, I'm not sure what difference that makes. It has never been updated and it's also being used only in _elementtree. Since the latter is statically compiled against pyexpat, I don't see a reason to touch it.

2. I wouldn't backport it to 2.7; again, not critical enough.

3. Should we open a separate issue for adding support to GBK and similar encodings "sometime in the future"? This issue kind-of got derailed to fix the bug.

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[issue13612] xml.etree.ElementTree says unknown encoding of a regularencoding

Roundup Robot — 2013-05-25T12:27:32

Roundup Robot added the comment:

New changeset f7b47fb30169 by Eli Bendersky in branch '3.3':
Issue #13612: handle unknown encodings without a buffer overflow.
http://hg.python.org/cpython/rev/f7b47fb30169

New changeset 47e719b11c46 by Eli Bendersky in branch 'default':
Issue #13612: handle unknown encodings without a buffer overflow.
http://hg.python.org/cpython/rev/47e719b11c46

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nosy: +python-dev

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[issue7940] re.finditer and re.findall should support negative endpositions

Antoine Pitrou — 2013-05-25T11:43:05

Changes by Antoine Pitrou <pitrou< at >free.fr>:


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components: +Library (Lib)
stage: test needed -> needs patch
versions: +Python 3.4 -Python 2.7, Python 3.2

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[issue8240] ssl.SSLSocket.write may fail on non-blocking sockets

Antoine Pitrou — 2013-05-25T11:09:59

Antoine Pitrou added the comment:

Ok, I should have fixed the original issue. If you want to see an option to enable partial writes, please open a separate issue.

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resolution:  -> fixed
stage: needs patch -> committed/rejected
status: open -> closed

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[issue8240] ssl.SSLSocket.write may fail on non-blocking sockets

Roundup Robot — 2013-05-25T11:02:41

Roundup Robot added the comment:

New changeset 60310223d075 by Antoine Pitrou in branch 'default':
Issue #8240: Set the SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER flag on SSL sockets.
http://hg.python.org/cpython/rev/60310223d075

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nosy: +python-dev

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[issue8240] ssl.SSLSocket.write may fail on non-blocking sockets

Antoine Pitrou — 2013-05-25T10:57:18

Antoine Pitrou added the comment:


You can slice a memoryview() to avoid a copy. But I'm not sure of the point of partial writes here: can't you just send slices that are small enough (e.g. 4KB each)?

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[issue17936] O(n**2) behaviour when adding/removing classes

Kristján Valur Jónsson — 2013-05-25T10:56:11

Kristján Valur Jónsson added the comment:

Looks good, I'll give it a spin.  This is probably smarter then trying to do tricks with lists.

One question:  I saw you clearing exceptions in the tp_clear() function, isn't it better to use PyErr_PrintUnraisable()?  Is there a guideline to when to use that one in internal code?  When is it safe to just shrug and ignore?

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[issue17936] O(n**2) behaviour when adding/removing classes

Antoine Pitrou — 2013-05-25T10:58:04

Antoine Pitrou added the comment:


You're right, that would be better. I was just being lazy.

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[issue17997] ssl.match_hostname(): sub string wildcard should notmatch IDNA prefix

Antoine Pitrou — 2013-05-25T10:50:29

Changes by Antoine Pitrou <pitrou< at >free.fr>:


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priority: critical -> normal

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[issue17936] O(n**2) behaviour when adding/removing classes

Antoine Pitrou — 2013-05-25T10:42:29

Antoine Pitrou added the comment:

Here is another approach to make tp_subclasses a dict, rather than a list. I'll let you benchmark and choose whichever you prefer :)

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nosy: +gvanrossum, rhettinger
Added file: http://bugs.python.org/file30364/subclasses_dict.patch

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[issue18046] Simplify and clarify logging internals

Roundup Robot — 2013-05-25T10:20:50

Roundup Robot added the comment:

New changeset 5629bf4c6bba by Vinay Sajip in branch 'default':
Closes #18046: Simplified logging internals relating to levels and their names. Thanks to Alex Gaynor for the patch.
http://hg.python.org/cpython/rev/5629bf4c6bba

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nosy: +python-dev
resolution:  -> fixed
stage: patch review -> committed/rejected
status: open -> closed

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[issue12641] Remove -mno-cygwin from distutils

Seppo Yli-Olli — 2013-05-25T10:20:41

Seppo Yli-Olli added the comment:

ERRATA
Misunderstood the meaning of ERRATA, please ignore my last post.

Roumen Petrov wrote:
I kinda like the using --target-help for finding out if -mno-cygwin is supported assuming --target-help is supported by all GCC's. I disliked the version-based approach since back from 2011 since it seems fragile to me. I'm noo sure if it falls into the category of lightweight checks Eric asked for in #msg146499 but at least more lightweight than my proposal of trying to compile a sample program with the compiler.

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[issue18047] Descriptors get invoked in old-style objects and classes

Phil Connell — 2013-05-25T09:33:46

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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[issue18042] Provide enum.unique class decorator

Phil Connell — 2013-05-25T09:31:07

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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[issue18043] No mention of `match.regs` in `re` documentation

Phil Connell — 2013-05-25T09:31:38

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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[issue18036] "How do I create a .pyc file?" FAQ entry is out of date

Phil Connell — 2013-05-25T09:28:08

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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[issue18035] telnetlib incorrectly assumes that select.error has anerrno attribute

Phil Connell — 2013-05-25T09:27:36

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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[issue18033] Example for Profile Module shows incorrect method

Phil Connell — 2013-05-25T09:10:12

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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[issue18032] set methods should specify whether they consumeiterators "lazily"

Phil Connell — 2013-05-25T09:09:12

Changes by Phil Connell <pconnell< at >gmail.com>:


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nosy: +pconnell

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