[Python-Dev] Summary: rejection of 'dynamic attribute' syntax (original) (raw)
Guido van Rossum guido at python.org
Thu Feb 15 02:25:21 CET 2007
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On 2/14/07, glyph at divmod.com <glyph at divmod.com> 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 lots of code that looks like this, and I think it would be a real savings if it could look like that, instead".
Yup.
Some back-of-the-envelope math might be nice, in terms of savings of lines of code, or an explanation of the new functionality that might be enabled by a feature.
Well, savings in lines of code per se aren't high on my list; savings in conceptual difficulty understanding the code is. Sometimes savings in writing (if they don't go against the savings in understanding) are also important; especially avoiding distractions like having to stop working on the current algorithm in order to figure out how to best write some simple bookkeeping code, etc. (You seem to agree to some extent later, but I think it's worth mentioning my own standards here. :-)
-- --Guido van Rossum (home page: http://www.python.org/~guido/)
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