Mailman 3 November 2004 - Python-Dev

Re: [Python-Dev] proposal+patch: sys.gettickeraccumulation()
by Ralf W. Grosse-Kunstleve Nov. 18, 2004

Nov. 18, 2004

Brett C. wrote: > I have been mulling over this proposal and I think I am finally > settling on +0 as long as it can be shown that it does not hurt > performance at all (yes, it shouldn't but this is the eval loop we are > talking about and that thing is a touchy beast). Is there a standard benchmark I could use to demonstrate the impact of the two new additions on the runtime? Thanks! Ralf

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New critical thread bug
by Tim Peters Nov. 18, 2004

Nov. 18, 2004

This one is a puzzler. See http://www.python.org/sf/1069160 for details. The short course is that the PyThreadState_SetAsyncExc() implementation fell into a common trap, and can cause segfaults under rare conditions (like every other Python thread segfault bug we've ever had). This is easily repaired (although I've got no interest in doing the coding, or even in contriving a test case -- this was an obvious "by eyeball" bug). The puzzle is how to treat this wrt 2.4. Since it's a … [View More]

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Re: [Python-Dev] __pycode__ extension
by Phillip J. Eby Nov. 18, 2004

Nov. 18, 2004

At 02:24 PM 11/17/04 +0200, Stelios Xanthakis wrote: > #!/usr/bin/python -P > def save_world(): > F = open ('MYSYSTEM.py') > F.write ('#!/usr/bin/python -P\n') > for i in globals(): > if hasattr (eval(a), '__pycode__'): > F.write (eval(a).__pycode__) There are bugs in this code. First, the wrong variable is used for eval(), and second, it shouldn't use eval. If there's a global named 'F', for … [View More]

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Re: [Python-Dev] __pycode__ extension
by Phillip J. Eby Nov. 18, 2004

Nov. 18, 2004

At 06:49 AM 11/18/04 +0200, Stelios Xanthakis wrote: >On Wed, 17 Nov 2004, Phillip J. Eby wrote: >>What good is that? Likewise, I don't see the point of having this only >>enabled when a command-line option is given. > >We can marshal it if we want. >But I'm not convinced we should. Apparently, we have different use cases for the source code. In my use cases, I have little use for the interactive mode or exec. For example, in the exec case, I would already have … [View More]

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Deprecate PyRange_New()
by Raymond Hettinger Nov. 18, 2004

Nov. 18, 2004

A while back, Tim added a comment that PyRange_New() should be deprecated in-part because it is filled with problems and is not used anywhere in the core. Doesn't anyone mind if I mark it in the C-API docs as deprecated so it can be phased out later? Raymond Hettinger

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RE: [Python-Dev] os.access versus os.exist
by Robert Brewer Nov. 17, 2004

Nov. 17, 2004

"Martin v. Löwis" wrote: > Sent: Wednesday, November 17, 2004 12:31 PM > To: Robert Brewer > Cc: python-dev(a)python.org > Subject: Re: [Python-Dev] os.access versus os.exist > > > Robert Brewer wrote: > > Completely understood about LocalSystem. But IMO, os.stat should > > raise a more specific and correct error. As you pointed out, calling > > open() raises "IOError: [Errno 13] Permission denied"; it would be > > nice if stat did the same (in my … [View More]

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sys.exit(47) ?
by M.-A. Lemburg Nov. 17, 2004

Nov. 17, 2004

Hi there, something in the regression suite is generating a temporary file with content: #!/bin/sh exec /path/to/python -c 'import sys; sys.exit(47)' and not cleaning up after itself. This started around Oct. 13. Looking at the regression suite test_subprocess.py seems to be the cause. BTW, wouldn't sys.exit(42) be more appropriate :-? -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 17 2004) >>> Python/Zope Consulting and … [View More]

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RE: [Python-Dev] os.access versus os.exist
by Robert Brewer Nov. 17, 2004

Nov. 17, 2004

Martin v. Löwis wrote: > Robert Brewer wrote: > > Inside the app (running under LocalSystem on the same Win2k > machine): > > os.stat() raises OSError: [Errno 2] No such file or directory, > > os.path.exists() returns False, and > > os.access() returns False. > > LocalSystem cannot access network shares. However, this is OT for > python-dev. Completely understood about LocalSystem. But IMO, os.stat should raise a more specific and correct error.… [View More]

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Re: [Python-Dev] proposal+patch: sys.gettickeraccumulation()
by Ralf W. Grosse-Kunstleve Nov. 17, 2004

Nov. 17, 2004

Nick Coghlan wrote: > Ralf W. Grosse-Kunstleve wrote: > > >Knowing "I'm spending x% of the time executing Python code" just isn't > > >really all that interesting, > > > > Right. Sorry if I gave the wrong impression that this could be > > interesting. It is indeed not. What is interesting is the estimated > > benefit of reimplementing a piece of Python in C/C++. This is in > > fact highly correlated with the time/tick. > > Ah, OK, … [View More]

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Py 2.4 b2 announcement
by Batista, Facundo Nov. 17, 2004

Nov. 17, 2004

Is some weird cache issue from my side, or Py2.4b2 is not announced at http://www.python.org/? Regards, Facundo Batista Desarrollo de Red fbatista(a)unifon.com.ar (54 11) 5130-4643 Cel: 15 5097 5024

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