[Python-Dev] Declaring setters with getters (original) (raw)

Barry Warsaw barry at python.org
Thu Nov 1 18:23:26 CET 2007

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On Nov 1, 2007, at 10:01 AM, Guido van Rossum wrote:

On 10/31/07, glyph at divmod.com <glyph at divmod.com> wrote:

As long as we're all tossing out ideas here, my 2ยข. I vastly prefer this:

On 02:43 am, steven.bethard at gmail.com wrote: On 10/31/07, Fred Drake <fdrake at acm.org> wrote:

@property.set def attribute(self, value): self.ignored = value to this: @property.set(attribute) def attribute(self, value): self.ignored = value since I don't see any additional expressive value in the latter, and it provides an opportunity to make a mistake. I was expecting this would be brought up, but that just ain't gonna happen. If you don't repeat the name, the decorator has to root around in the surrounding scope, which is fraught with peril. Solutions based on sys.getframe() have been around for years (e.g. several the Cookbook recipes) and if I had approved of that technique I would have adopted one long ago.

It's also not as if you're writing some string value the second time,
so any typos in the name will be caught early on.

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