> On 24 Oct 2019, at 01:02, Christopher Barker <python...@gmail.com> wrote: > > >> On Sun, Oct 13, 2019 at 12:52 PM Andrew Barnert via Python-ideas >> <python-ideas@python.org> wrote: > >> The main problem is that a str is a sequence of single-character str, each >> of which is a one-element sequence of itself, etc. forever. If you wanted to >> change this, I think it would make more sense to go the opposite way: leave >> str a sequence, but make it a sequence of char objects. (And likewise, bytes >> and bytearray could be sequences of byte objects—or just go all the way to >> making them sequences of ints.) And then maybe add a c prefix for defining >> char constants, and you’ve solved all the problems without having to add new >> confusing methods or properties. > > I've thought for a long time that this would be a "good thing". the "string > or sequence of strings" issues is pretty much the only hidden-bug-triggering > type error I've gotten since "true division". > > The only way we really live with it fairly easily is that strings are pretty > much never duck typed -- so I can check if I got a string, and then I know I > didn't get a sequence of strings. But I've always wondered how disruptive it > would be to add a char type -- it doesn't seem like it would be very > disruptive, but I have not thought it through at all. And I'm not sure how > much string functionality a char should have -- probably next to none, as the > point is that it would be easy to distinguish from a string that happened to > have one character. > > By the way, the bytes and bytearray types already does this -- index into or > loop through a bytes object, you get an int.
I would think it's fine if we depreciate the iter on str and supply a chars() method. Personally I think that can yield str and not int. The could be a codes() or char_codes() method for that. / Anders
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