On Tue, 11 Jul 2017 11:16 pm, Albert-Jan Roskam wrote: > >>> False == 0 > True > >>> False is 0 > False > > > =====> Just wondering: Is this 'is' test depending on an implementation detail > of cPython (small ints, I forgot how small 0-255 maybe, are singletons)?
No. But the test 0 is 0 will be. True and False are guaranteed singletons: there will only ever be a single builtin False. The small ints including 0 *may* be cached, so that they will be singletons. The definition of "small" will vary from version to version. -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse. -- https://mail.python.org/mailman/listinfo/python-list
