#!~/.virtualenvs/learning/bin/python


class Rectangle(object):
    """calculates the area and perimeter of a rectangle"""

    def __init__(self, length, width, **kwargs):
        super(Rectangle, self).__init__(**kwargs)
        self.length = length
        self.width = width

    def area(self):
        return(self.length * self.width)

    def perimeter(self):
        return(2 * self.length + 2 * self.width)


# Here we can declare the superclass for the subclass Square

class Square(Rectangle):
    """calculates the area and perimeter of a square"""

    def __init__(self, length, **kwargs):
        super(Square, self).__init__(length=length, width=length, **kwargs)


class Cube(Square):
    """calculates the surface area and volume of a cube"""

    def __init__(self, length, **kwargs):
        super(Cube, self).__init__(length=length, **kwargs)
        self.length = length

    def surface_area(self):
        face_area = super(Cube, self).area()
        return(6 * face_area)

    def volume(self):
        face_area = super(Cube, self).area()
        return(face_area * self.length)

    def area(self):
        return(self.length * self.length + 1)
        # return(super(Cube, self))


class Triangle(object):
    """calculates the area of a triangle"""

    def __init__(self, base, height, **kwargs):
        self.base = base
        self.height = height
        super(Triangle, self).__init__(**kwargs)

    def tri_area(self):
        return 0.5 * self.base * self.height


class RightPyramid(Square, Triangle):
    """calculates the surface area of a right pyramid"""

    def __init__(self, base, slant_height, **kwargs):
        kwargs['height'] = slant_height
        kwargs['length'] = base
        super(RightPyramid, self).__init__(base=base, **kwargs)
        self.base = base
        self.slant_height = slant_height

    def area(self):
        base_area = super(RightPyramid, self).area()
        perimeter = super(RightPyramid, self).perimeter()
        return(0.5 * perimeter * self.slant_height + base_area)

    def area_2(self):
        base_area = super(RightPyramid, self).area()
        triangle_area = super(RightPyramid, self).tri_area()
        return(triangle_area * 4 + base_area)


class new_cube(Cube):
    """docstring for new_cube"""
    def __init__(self, new_length):
        super(new_cube, self).__init__(length=new_length)
        self.new_length = new_length


# print(RightPyramid.__mro__)
pyramid = RightPyramid(2, 4)
print(pyramid.area())
print(pyramid.area_2())

nc = new_cube(4)
print(nc.surface_area())

square = Square(3)
print(square.perimeter())