Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Steve Holden
Greg Ewing wrote: Steve Holden wrote: A further data point is that modern machines seem to give timing variabilities due to CPU temperature variations even if you always eat exactly the same thing. Oh, great. Now we're going to have to run our benchmarks in a temperature-controlled

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Anthony Baxter
On Thursday 15 February 2007 21:48, Steve Holden wrote: Greg Ewing wrote: Steve Holden wrote: A further data point is that modern machines seem to give timing variabilities due to CPU temperature variations even if you always eat exactly the same thing. Oh, great. Now we're going to

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Barry Warsaw
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Feb 15, 2007, at 6:27 AM, Anthony Baxter wrote: On Thursday 15 February 2007 21:48, Steve Holden wrote: Greg Ewing wrote: Steve Holden wrote: A further data point is that modern machines seem to give timing variabilities due to CPU

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Steve Holden
Barry Warsaw wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Feb 15, 2007, at 6:27 AM, Anthony Baxter wrote: On Thursday 15 February 2007 21:48, Steve Holden wrote: Greg Ewing wrote: Steve Holden wrote: A further data point is that modern machines seem to give timing

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Steve Holden
Steve Holden wrote: Barry Warsaw wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Feb 15, 2007, at 6:27 AM, Anthony Baxter wrote: On Thursday 15 February 2007 21:48, Steve Holden wrote: Greg Ewing wrote: Steve Holden wrote: A further data point is that modern machines seem to give

[Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Ben North
[EMAIL PROTECTED] wrote: I really, really wish that every feature proposal for Python had to meet some burden of proof Ben North wrote: This is what I understood the initial posting to python-ideas to be about. [EMAIL PROTECTED] wrote: I'm suggesting that the standards of the

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-15 Thread Greg Ewing
Anthony Baxter wrote: Unless the fans are perfectly balanced, small changes in gravity are going to affect the rate at which they spin. So I guess the position of the moon will affect it :-) A standard gravitational field could also be important to eliminate relativistic effects. So we

[Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-14 Thread Ben North
Guido van Rossum wrote: This seems to be the overwhelming feedback at this point, so I'm withdrawing my support for the proposal. I hope that Ben can write up a PEP and mark it rejected, to summarize the discussion; it's been a useful lesson. The feedback is clear, yes. The new syntax seems

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-14 Thread Steve Holden
Ben North wrote: [...] Guido van Rossum wrote: I missed discussion of the source of the 1%. Does it slow down pystone or other benchmarks by 1%? That would be really odd, since I can't imagine that the code path changes in any way for code that doesn't use the feature. Is it that the ceval

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-14 Thread Thomas Heller
Steve Holden schrieb: Ben North wrote: [...] Guido van Rossum wrote: I missed discussion of the source of the 1%. Does it slow down pystone or other benchmarks by 1%? That would be really odd, since I can't imagine that the code path changes in any way for code that doesn't use the feature.

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-14 Thread glyph
On 01:04 pm, [EMAIL PROTECTED] wrote: [EMAIL PROTECTED]: I really, really wish that every feature proposal for Python had to meet some burden of proof [...]. I suspect this would kill 90% of hey wouldn't this syntax be neat proposals on day zero [...] This is what I understood the initial

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-14 Thread Greg Ewing
Steve Holden wrote: A further data point is that modern machines seem to give timing variabilities due to CPU temperature variations even if you always eat exactly the same thing. Oh, great. Now we're going to have to run our benchmarks in a temperature-controlled oven... -- Greg

Re: [Python-Dev] Summary: rejection of 'dynamic attribute' syntax

2007-02-14 Thread Guido van Rossum
On 2/14/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: What I was trying to say there is that the proposal of new ideas should not begin with Hey, I think this might be 'good' - that's too ill defined. It should be, I noticed (myself/my users/my students/other open source projects) writing