Building useful classes


Oops, try again. It looks like you didn't print "(1, 2, 3)".

class Point3D(object):
    def __init__(self, x, y, z):
        self.x = x
        self.y = y
        self.z = z
    def __repr__(self):
        return "(%d %d %d)" % (self.x, self.y, self.z)

my_point = Point3D(1, 2, 3)
print my_point


Looks right to me unless I'm missing something. Try refreshing the page?


I refreshed the page and it still didn't work.


Oh, you're missing a comma in your return between the numbers.


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