None is returned

In the example code below - why is "None" returned - print(rectangle.describe("this is a new rectangle")) - and how do I get to print out the result "this is a new rectangle"


class Shape:
    def __init__(self,x,y):
        self.x = x
        self.y = y
        self.description = "not yet described" = "no text yet"
    def area(self):
        return self.x * self.y
    def perimeter(self):
        return 2 * self.x + 2 * self.y
    def describe(self,text):
        self.description = text
    def author_name(self,text): = text
    def scaleSize(self,scale):
        self.x = self.x * scale
        self.y = self.y * scale
rectangle = Shape(100,45)
print(rectangle.describe("this is a new rectangle"))
PHIL SawyerAsked:
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Mark BradyPrincipal Data EngineerCommented:
Looking at your code for the scaleSize() function you have self.scale but in the function you are referring to scale. Remove self. from the parameter and it should work.
Walter RitzelSenior Software EngineerCommented:
your problem is that describr function does not return anything. make it return self.description if you want

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PHIL SawyerAuthor Commented:
Thanks Walter - this works.
Mark - can you show mw what you mean as the scal function seems to work.
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Mark BradyPrincipal Data EngineerCommented:
Hi Phil - My bad, I did not have my glasses on and thought the parameters for that function were self.scale. I miss-read the comma. Walter is correct.
PHIL SawyerAuthor Commented:
Thanks everybody
PHIL SawyerAuthor Commented:
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