rect = shape_calculator.Rectangle(10, 5)
print(rect.get_area())
rect.set_height(3)
print(rect.get_perimeter())
print(rect)
print(rect.get_picture())

sq = shape_calculator.Square(9)
print(sq.get_area())
sq.set_side(4)
print(sq.get_diagonal())
print(sq)
print(sq.get_picture())

rect.set_height(8)
rect.set_width(16)
print(rect.get_amount_inside(sq))

50
26
Rectangle(width=10, height=3)
**********
**********
**********

81
5.656854249492381
Square(side=4)
****
****
****
****

8

class Rectangle:
    def __init__(self, width, height):
        self.width = width
        self.height = height

    def set_width(self, width):
        self.width = width

    def set_height(self, height):
        self.height = height

    def get_area(self):
        return self.width * self.height

    def get_perimeter(self):
        return 2 * self.width + 2 * self.height

    def get_diagonal(self):
        return (self.width ** 2 + self.height ** 2) ** .5

    def get_picture(self):
        if(self.width >= 50 or self.height >= 50):
            return "Too big for picture."

        row = "*" * self.width
        return "\n".join([row for idx in range(self.height)]) + "\n"

    def get_amount_inside(self, shape):
        return int(self.get_area() / shape.get_area())

    def __str__(self):
        return f"{self.__class__.__name__}(width={self.width}, height={self.height})"

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