"flyaflya" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] >I want make a 2-D array from a list,all elements is references of > list's,like this: > a = [1,2,3,4] > b = [ [1,2], [3,4] ] > when change any elements of a, the elements of b will change too, so I > can use some function for list to change b. > c/c++ can work in this way,I think let b[0] = a[0:2], b[1] = a[2:3],but > it's not reference,it's copy.
Look into Numerical Python or Numarray, where slices are views instead of copies. TJR -- http://mail.python.org/mailman/listinfo/python-list
