Mailman 3 June 2008 - Python-Dev

Another Proposal: Run GC less often
by none June 22, 2008

June 22, 2008

Instead of collecting objects after a fixed number of allocations (700) You could make it dynamic like this: # initial values min_allocated_memory = 0 max_allocated_memory = 0 next_gc_run = 1024 * 1024 def manage_memory(): allocated_memory = get_allocated_memory() min_allocated_memory = min(min_allocated_memory, allocated_memory) max_allocated_memory = max(max_allocated_memory, allocated_memory) if max_allocated_memory - min_allocated_memory > next_gc_run: # … [View More]

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RELEASED Python 2.6b1 and 3.0b1
by Barry Warsaw June 22, 2008

June 22, 2008

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On behalf of the Python development team and the Python community, I am happy to announce the first beta releases of Python 2.6 and Python 3.0. Please note that these are beta releases, and as such are not suitable for production environments. We continue to strive for a high degree of quality, and these releases are intended to freeze the feature set for Python 2.6 and 3.0. From now until the planned final releases in September 2008, … [View More]

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csv module and Unicode in 2.6 and 3.0
by skip＠pobox.com June 21, 2008

June 21, 2008

If I understand things correctly, the csv module in 3.0 supports Unicode, kind of for free because all strings are Unicode. I suspect the Unicode examples at the bottom of the 3.0 version of the module doc need to be removed. Does the 2.6 version support Unicode out of the box as well or are the Unicode examples still required there? Skip

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Status of Issue 2331 - Backport parameter annotations
by David Pokorny June 21, 2008

June 21, 2008

Hi, I am curious if there is any news on this issue. My understanding is that since this is a new feature, nothing will be committed until after 2.6 comes out, but it would be *really nice* if I could use annotations in 2.x. [warning - mini rant] Reason is, I am using 3.0a for now for this project, but I am sorry to say that using parentheses for raising exceptions drives me up the wall, and I don't like using them for the former print statement either. I suspect this is partly due to the … [View More]

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Re: [Python-Dev] [Python-checkins] r64407 - python/trunk/Doc/library/multiprocessing.rst
by A.M. Kuchling June 21, 2008

June 21, 2008

On Thu, Jun 19, 2008 at 03:04:11PM -0500, Benjamin Peterson wrote: > I don't think the whole introduction had to go. I think it helped give > some idea of how multiprocessing works before jumping straight to the > API reference. I don't think overview material like that should be buried inside the documentation for one particular module; it should go in a chapter introduction. My plan is to move multiprocessing from the 'Optional OS Services' chapter to the 'Interprocess … [View More]

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Re: [Python-Dev] [Python-checkins] r64424 - in python/trunk: Include/object.h Lib/test/test_sys.py Misc/NEWS Objects/intobject.c Objects/longobject.c Objects/typeobject.c Python/bltinmodule.c
by Eric Smith June 21, 2008

June 21, 2008

I thought there was a discussion of this earlier, and the idea was to leave the prior implementation, because that's how it's implemented in 3.0. bin() is a new feature in 2.6, so there's no particular need to make it work like hex() and oct(). Recall that in 3.0, __bin__, __oct__, and __hex__ don't exist. Instead, you use __index__ for integer conversions. That's how bin() worked in 2.6 until this checkin. But now that I look for it, I can't find the original discussion. raymond.… [View More]

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Summary of Python tracker Issues
by Python tracker June 20, 2008

June 20, 2008

ACTIVITY SUMMARY (06/13/08 - 06/20/08) 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. 1917 open (+28) / 13057 closed (+19) / 14974 total (+47) Open issues with patches: 581 Average duration of open issues: 712 days. Median duration of open issues: 1479 days. Open Issues Breakdown open 1892 (+28) pending 25 ( +0) Issues Created Or Reopened (50) … [View More]

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test_multiprocessing: test_listener_client flakiness
by Trent Nelson June 20, 2008

June 20, 2008

I gave my Windows buildbots a little bit of TLC last night. This little chestnut in test_multiprocessing.py around line 1346 is causing my buildbots to wedge more often than not: def test_listener_client(self): for family in self.connection.families: l = self.connection.Listener(family=family) p = self.Process(target=self._test, args=(l.address,)) p.set_daemon(True) p.start() conn = l.accept() self.assertEqual(… [View More]

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sum() in math module not duplicated?
by A.M. Kuchling June 20, 2008

June 20, 2008

In the comments before the implementation of sum() in mathmodule.c, note 4 says: Note 4: A similar implementation is in Modules/cmathmodule.c. Be sure to update both when making changes. I can't find a sum implementation or similar code in cmathmodule.c. Did someone intend to port the sum function to cmath, or was it copied and then taken out? I'm wondering if this note should simply be removed. --amk

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Opcode frequency
by Georg Brandl June 20, 2008

June 20, 2008

Hi, Maciej Fijalkowski did an opcode analysis for PyPy, it also shows the relative frequency of opcodes following a specifc one: http://codespeak.net/svn/user/fijal/opcodes.txt Might it make sense to add more PREDICT()ions based on this, e.g. for BUILD_SLICE -> BINARY_SUBSCR? Georg

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