[EMAIL PROTECTED] wrote: > >>> from Numeric import zeros > >>> p=zeros(3) > >>> p > array([0,0,0]) > >>> p[0] > 0 > >>> x=p[0]
`x' is now a reference to immutable integer object with value 0, not to first element of array `p' > >>> x=10 now `x' is a reference to immutable integer object with value 10, array doesn't change > >>> p > array([0,0,0]) #actual behavior > #array([10,0,0]) #desired behavior > > I want x to be a C++-esque reference to p[0] for convenience in a > vector3 class. i dont want accessor methods. i know python can do > this, but it's been a long time since I used it and am unsuccessful in > my googling and docreading. a little help please? You can have such a reference to mutable objects. Consider this: >>> p = [[0,0,0], [0,0,0]] >>> x = p[0] # reference to mutable list object >>> x[0] = 10 >>> p [[10, 0, 0], [0, 0, 0]] -- HTH, Rob -- http://mail.python.org/mailman/listinfo/python-list
