On Fri, 7 Jul 2017 08:56 am, Marko Rauhamaa wrote: > Google finds a Dutch master's thesis from 2009 that gives formal > semantics to a subset of Python. I was interested in seeing how it > treated identity. Lo and behold: > > The is operator determines whether its operands are the same object. > This is achieved by comparing the addresses of the operands.
Well, that's a fail, because the author fails to distinguish between an implementation detail of one specific Python interpreter with a language feature. But you know that, because you've been around to hear us say so probably a dozen or fifty times. So I wonder what on earth you think this proves except that the thesis author *got it wrong*. -- 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
