On Feb 19, 9:44 am, Steven D'Aprano <[EMAIL PROTECTED] cybersource.com.au> wrote:
> Except for documented singletons such as modules and None, which objects > have the same identity is platform dependent, version dependent, and even > dependent on the execution history of your code. The advice not to identity test strings and numbers (since they are interred in the main implementation), or tuples, since they potentially could be, seems sound enough. But given the nature of mutables, is the identity of these even potentially implementation dependant (ie. they couldn't be interred could they)? One might conceivably want to know that a list into which one is about to stuff something is the same (or perhaps not the same) list as that pointed to by another name, which operation, hopefully, remains possible across the range of potential implementations. -- http://mail.python.org/mailman/listinfo/python-list
