Welcome, guest | Sign In | My Account | Store | Cart
def CmpToKey(mycmp):
    'Convert a cmp= function into a key= function'
    class K(object):
        def __init__(self, obj, *args):
            self.obj = obj
        def __lt__(self, other):
            return mycmp(self.obj, other.obj) == -1
        def __gt__(self, other):
            return mycmp(self.obj, other.obj) == 1
        def __eq__(self, other):
            return mycmp(self.obj, other.obj) == 0
        def __le__(self, other):
            return mycmp(self.obj, other.obj) != 1  
        def __ge__(self, other):
            return mycmp(self.obj, other.obj) != -1
        def __ne__(self, other):
            return mycmp(self.obj, other.obj) != 0
    return K

History