Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info>: > The id() function in Python is not defined as returning the address of > the object.
It might as well. If I said id() returns the address of the object in the Python VM's virtual address space, you couldn't call my bluff. Say id() returned the intantiation sequence number. I could say, the infinite linear memory starts from address 0 and each object occupies a single memory slot. > That's wrong. Jython is not an imitation, it is an independent > implementation of the same language. Since both CPython and Jython > follow the specification of the language, both are legitimate Python > compilers. > > Both the Jython and CPython id() functions are compliant with the > language definition. The Jython id() function is better, because it > doesn't encourage people to mistakenly and foolishly imagine that id() > equals address. I agree with everything (how could I not) except the foolishness part: what bad consequence is there for "imagining" that id() equals address? If id() offers the only glimpse into the "memory," we can say that id() *is* the address. Marko -- https://mail.python.org/mailman/listinfo/python-list