On Tue, Oct 6, 2020 at 10:14 AM Marco Sulla <marco.sulla.pyt...@gmail.com> wrote:
> What I do not understand is why you need to use the iterator instead > of using the iterable itself. This way you can jump to whatever > position without slicing. > if you want the Nth item, that's easy, yes. if you want to iterate through items N to the end, then how do you do that without either iterating through the first N and throwing them away, or making a slice, which copies the rest of the sequence? Is this. big deal? maybe not -- islice is written in C, and pretty darn fast, but there is a missing efficiency here, which could be addressed by either providing access to set the iterator "counter", as proposed, or by providing a view object that could be a slice without copying. -CHB > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/QZ5QL3HNNDJYV67RPVATVDRD5R63AOUM/ > Code of Conduct: http://python.org/psf/codeofconduct/ > -- Christopher Barker, PhD Python Language Consulting - Teaching - Scientific Software Development - Desktop GUI and Web Development - wxPython, numpy, scipy, Cython
_______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/6S735JUS66BTCFSKGLRY2JCYW7GKRAKG/ Code of Conduct: http://python.org/psf/codeofconduct/
