"Edward C. Jones" <edcjones at comcast.net> wrote: > That's a good idea. Include everything from m * [n * [0]] to pickling Except that it probably doesn't do what you intend... >>> a = 2*[3*[0]] >>> a [[0, 0, 0], [0, 0, 0]] >>> a[0][0] = 2 >>> a [[2, 0, 0], [2, 0, 0]] Unless you intend something like that... - Josiah