John Henry a écrit : > Hi list, > > Just to make sure I understand this. > > Since there is no "pointer" type in Python, I like to know how I do > that. > > For instance, if I do: > > ...some_huge_list is a huge list... > some_huge_list[0]=1 > aref = some_huge_list > aref[0]=0 > print some_huge_list[0] > > we know that the answere will be 0. In this case, aref is really a > reference. > > But what if the right hand side is a simple variable (say an int)? Can > I "reference" it somehow? Should I assume that: > > aref = _any_type_other_than_simple_one > > be a reference, and not a copy? > > Thanks, >
That's easy. In Python, every variable is a depth one pointer. Every variable is of the type (PyObject*) Of course, since numbers and strings are immutable, that pointer is useless to push back the modifications you've done. You need a PyObject** ? Use a one element list instead and manipulate it like that : number_ref[0] = new_value instead of that : number_ref = [new_value] -- http://mail.python.org/mailman/listinfo/python-list
