"Steven Bethard" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Michael wrote: > > Do expicit pointers exist in python?? > > > > if i do: > > > > a = [5,7] > > b = a > > > > a.empty() > > > > b = ? > > This is what the interactive prompt is for. Try it: > > py> a = [5,7] > py> b = a > py> a.empty() > Traceback (most recent call last): > File "<interactive input>", line 1, in ? > AttributeError: 'list' object has no attribute 'empty' > > Well, looks like you get an AttributeError. Let's try a method that > actually exists instead: > > py> a.pop() > 7 > py> a > [5] > py> b > [5] > > So, as you can see, since 'a' and 'b' are both names referring to the > same object, when you modify the object referred to by 'a', you are also > modifying the object referred to by 'b'. > > > how do i do explicit pointers?? > > I don't know what you mean by "explicit pointers". Care to elaborate? > It also might help if you explained what it is you think you want > "explicit pointers" to do. > > STeVe
sorry, I'm used to working in c++ :-p if i do a=2 b=a b=0 then a is still 2!? so when do = mean a reference to the same object and when does it mean make a copy of the object?? regards Mike -- http://mail.python.org/mailman/listinfo/python-list
