On Fri, 07 Nov 2008 13:05:16 -0700, Joe Strout wrote: > In Python, AFAICT, there is only one type, the object reference. So, > the type of every variable is 'reference', and each one contains a > reference.
This is wrong. If we take "variable" to mean "name", then Python names do not have types. But *objects* have types, and there are many of them: >>> a = 23; type(a) <type 'int'> >>> a = "foo"; type(a) <type 'str'> >>> a = []; type(a) <type 'list'> But a name that isn't bound to an object doesn't have a type: >>> del a; type(a) Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'a' is not defined The type information is associated with the object, not with the name. It is possible that, in the C implementation, there is a C-type 'reference' and all(?) C variables relating to the implementation of namespaces have that type. Possibly. But even if true, that's the wrong level of description. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
