Chris Stiles <[EMAIL PROTECTED]> wrote: ... > > alias insertion just be of the form "x aliases to y" rather than "x > > names object XXX"? > > In this case, strictly speaking there are no such thing as an 'object XXX', > all the aliases are names for the object, each as important as each other.
Fine, but, quite apart from names, IS there a Python object with a given identity, of which these aliases are names of? Or is that "object" something which does NOT exist as a Python object (in which case maybe calling it an "entity", or some other name that's not used for specific purposes in Python, might be clearer!)...? > > def alias(self, x, y): > > dx = self.d.get(x,set([x])) > > dy = self.d.get(y,set([y])) > > self.d[x]=self.d[y]=dx+dy > ^^^^^^^^^^^^^^^^^^^^^^^^^ > > Will that end up with two(many) references to the same set? [Though in any > case I would be iterating over all values in the set). Yes, but it's buggy (doesn't modify the self.d[z] entries for all the z's which aren't either x nor y but alias either of them). Alex -- http://mail.python.org/mailman/listinfo/python-list