[Tutor] ask-why I cannot run it, and I am so confused about the traceback

[Wesley Brooks]

Morning,

Your only supplying one argument to cone, when you need two: radius & height.

Cheers,

Wesley Brooks.

On 7 April 2010 11:56, Shurui Liu (Aaron Liu) <shurui91 at gmail.com> wrote:
> # Filename: classVolume.py
> # Demonstrates multiple classes per program.
>
> class Cube:
>    """A class for cube shapes."""
>    def __init__(self, side):
>        self.side = side
>    def calculateArea(self):
>        return (self.side)**3.0
>
> class Sphere:
>    """A class for sphere shapes."""
>    def __init__(self, radius1):
>        self.radius1 = radius1
>    def calculateArea(self):
>        import math
>        return (4/3)*(math.pi)*((self.radius1)**3.0)
>
> class Cone:
>    """A class for cone shapes."""
>    def __init__(self, radius2, height):
>        self.radius2 = radius2
>        self.height = height
>    def calculateArea(self):
>        import math
>        return (1/3.0)*(math.pi)*(self.height)*((self.radius2)**2)
>
>
> # Create a list of volumes.
> list = [Cube(1.1),Cube(1.2),Sphere(1.1),Sphere(1.2),Cone(1.1),Cone(1.2)]
>
> # Print out the list contents.
> for volume in list:
>    print "The volume is: ", volume.calculateArea()
> raw_input("\n\nPress the enter key to exit.")
>
>
>
>
>
> Traceback (most recent call last):
>  File "classVolume.py", line 30, in <module>
>    list = [Cube(1.1),Cube(1.2),Sphere(1.1),Sphere(1.2),Cone(1.1),Cone(1.2)]
> TypeError: __init__() takes exactly 3 arguments (2 given)
>
>
> --
> Shurui Liu (Aaron Liu)
> Computer Science & Engineering Technology
> University of Toledo
> 419-508-1228
>
>
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