[Python-3000] question Re: Need help completing ABC pep (original) (raw)

Samuele Pedroni pedronis at openendsystems.com
Sun Apr 22 12:35:47 CEST 2007

Guido van Rossum wrote:

I don't believe that's always true. I can imagine use cases where, if I were writing it in an if-then-else fashion, I'd be writing the same if-test several times as part of a particular algorithm, without having an easy way to refactor the algorithm so that there's only one place testing it. Turning each place where the if-test is repeated into a different GF might be a wasted of time; turning just the test into a GF seems just right. (IN THAT PARTICULAR CASE.) Note that I don't object against the idea that usually a GF is better; I just don't think it always is so.

If we keep s % d (do we? reading the list archives and the peps didn't give an answer, I suppose it depends if PEP 3101 is accepted):

will it check if d is a Mapping or continue to use the current heuristics?

I suppose this is a legitimate question for other corners of the language, std lib.

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