> Why? I can iterate over a string. [c for c in 'abc'] It certainly behaves like one... I'd say this is inconsistent because there is no __iter__() and next() on the str class.
Yes, strings are iterables. You can use a string as argument of str.join method. But only strings can be used as separators, so there is non need for a generic join method for all types of separators. Python is well designed, you are just not used to it 2017-09-14 21:31 GMT+02:00 Chris Angelico <ros...@gmail.com>: > On Fri, Sep 15, 2017 at 5:06 AM, Jason H <jh...@gmx.com> wrote: > > > >>> Why is it ','.join(iterable), why isn't there join(',', iterable) > > > >> Because join apply on a string, and strings are defined by the str > class, not by a specific protocol (unlike iterables). > > Why? I can iterate over a string. [c for c in 'abc'] It certainly > behaves like one... I'd say this is inconsistent because there is no > __iter__() and next() on the str class. > > There is __iter__, but no next() or __next__() on the string itself. > __iter__ makes something iterable; __next__ is on iterators, but not > on all iterables. > > >>> "abc".__iter__() > <str_iterator object at 0x7fce2b672550> > > > I do think Python is superior in many, many, ways to all other > languages, but as Python and JS skills are often desired in the same > engineer, it seems that we're making it harder on the majority of the labor > force. > > > > "We" are making it harder? Who's "we"? Python predates JavaScript by a > few years, and the latter language was spun up in less than two weeks > in order to create an 'edge' in the browser wars. So I don't think > anyone really planned for anyone to write multi-language code > involving Python and JS. > > 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/ > -- Antoine Rozo
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