Paul Sokolovsky <pmis...@gmail.com>: > Python already has that - like, len(x) calls x.__len__() if it's > defined
In fact, what's the point of having the duality? len(x) <==> x.__len__() x < y <==> x.__lt__(y) str(x) <==> x.__str__() etc. I suppose the principal reason is that people don't like UFCS. Plus some legacy from Python1 days. Lisp & co. rigorously follow its UFCS. I think it works great, but that is what people most ridicule Lisp for. What do you think? Would you rather write/read: if size + len(data) >= limit: or UFCS-ly: if size.__add__(data.__len__()).__le__(limit): Marko -- https://mail.python.org/mailman/listinfo/python-list
