no-spam at no-spam-no-spam.com
Thu Oct 26 22:22:27 CEST 2006
Mike Kent wrote:
> robert wrote:
>> I want to use a computation cache scheme like
>> o = CACHECOMPUTE complex-key-expr expensive-calc-expr
>> frequently and elegantly without writing complex-key-expr or expensive-calc-expr twice.
>> So its ugly:
>> _=complex-key-expr; o=cache.get(_) or cache.setdefault(_,expensive-calc-expr)
>> Any ideas?
> Your question is a bit terse, so my answer might not be spot on for it,
> but it sounds like you want what is typically called 'memoization',
> whereby a function caches its expensive-to-calculate return values,
> where the cache is keyed by the function arguments.
> and various other implimentations in the Cookbook for details.
thanks, yes, but the challenge was to hook expressions for memoizing ad hoc. See above solution.
More information about the Python-list