On Mon, Mar 6, 2017 at 12:53 PM, Elliot Gorokhovsky <elliot.gorokhov...@gmail.com> wrote: > (1) lists are idiomatically type-homogeneous. To quote the Python > documentation, "Lists are mutable, and *their elements are usually > homogeneous* and are accessed by iterating over the list". > (2) it's not very common to have to "compare apples and oranges". While it's > technically possible to define comparison between any two types you like, > and in practice one sometimes compares e.g. ints and floats, in practice > it's pretty safe to assume the lists you're sorting are going to be > type-homogeneous 95% or 99% of the time.
I would be rather curious to know how frequently a list consists of "numbers", but a mix of ints and floats. From the point of view of a list's purpose, they're all numbers (point 1 satisfied), and they're all comparable (point 2 satisfied), but from the POV of your patch, it's heterogeneous and suffers a performance penalty. Does it happen a lot in real-world code? (Apologies if this has already been mentioned; I've been skimming the thread, not reading it in detail.) ChrisA _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
