Jordan Rastrick wrote: > Are there any other reasonable examples people can give where it makes > sense for != and == not to be each other's complement?
__eq__ and __ne__ implement *rich* comparisons. They don't have to return only True or False. In [1]:import Numeric In [2]:a = Numeric.array([1, 2, 3, 4, 5]) In [3]:b = Numeric.array([1, 0, 4, 0, 5]) In [4]:a == b Out[4]:array([1, 0, 0, 0, 1],'b') In [5]:a != b Out[5]:array([0, 1, 1, 1, 0],'b') In [6]:(a != b) == (not (a == b)) Out[6]:array([1, 0, 0, 0, 1],'b') In [7]:not (a == b) Out[7]:False In [8]:not (a != b) Out[8]:False -- Robert Kern [EMAIL PROTECTED] "In the fields of hell where the grass grows high Are the graves of dreams allowed to die." -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
