On Tue, Jan 30, 2018 at 03:12:52PM +1000, Nick Coghlan wrote: [...] > So this is partly an optimisation question: > > - folks want to avoid allocating a bytes object just to throw it away > - folks want to avoid running the equivalent of "max(map(ord, text))" > - folks know that CPython (at least) tracks this kind of info > internally to manage its own storage allocations > > But it's also a readability question: "is_ascii()" and > "is_UCS2()/is_BMP()" just require knowing what 7-bit ASCII and UCS-2 > (or the basic multilingual plane) *are*, whereas the current ways of > checking for them require knowing how they *behave*.
Agreed with all of those. However, given how niche the varieties other than is_ascii() are, I'm not going to push for them. I use them rarely enough, or on small enough strings, that doing an O(N) max(string) is not that great a burden. I can continue using a helper function. -- Steve _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
