On 24/01/15 00:37, Cameron Simpson wrote:

By contrast, I use it a far bit (though still far less than non-property
methods).  Generally for derived properties which are:

  - cheap to compute i.e. O(1)

  - which I want to abstract

  - usually represent some property which is stable, such as a size

  - occasionally (much more rarely) a property which is not stable,

But why a property rather than a simple method?
Why is

k = url.key

better than

k = url.key()

for meeting those criteria?

--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos


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