On 28/04/2020 23:58, Andrew Barnert via Python-ideas wrote:
Really, we either need descriptors that can somehow work for globals and class attributes (which is probably not solveable), or some brand new language semantics that aren’t built on what’s already there. The latter sounds like probably way more work than this feature deserves, but maybe the experience of Swift argues otherwise.
Or you can do it up front, once you have the information to do it with. There aren't that many occasions when lazy evaluation actually wins you anything much; basically when you have moderately expensive information that you may not need at all but will use a lot if you do need it.
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