On Sat, Jan 26, 2019, 6:30 AM Anders Hovmöller <bo...@killingar.net wrote:
> > > I don't see anything here that can't be done by returning a dict, a > > namedtuple (possibly with optional fields), or some other object with > > named fields. They can be optional, they can have defaults, and you can > > extend the object by adding new fields without breaking backwards > > compatibility. > > That assumes you knew before hand to do that. The question is about the > normal situation when you didn't. > > Also you totally disregarded the call site where there is no way to do a > nice dict unpacking in python. The tuple case is super special and > convenient but strictly worse than having properly named fields. > > To me this question sounds like it's about dict unpacking with one special > case to keep backwards compatibility. > My "destructure" module might help. I was playing around with the idea of dict unpacking and extended it to a kind of case matching. https://github.com/selik/destructure Grant Jenks independently came to almost the same idea and implementation. >
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