Is the following, from http://www.pythonlabs.com/talks/PythonState_files/v3_document.htm a misprint? [(x,x**2) for x in range(5)] -> [(0,0), (1,1), (4,4), (9,9), (16,16)] Should the result not be: [(0, 0), (1, 1), (2, 4) (3, 9), (4, 16)]? Colin W.