I am not including the other methods. From this parent class I am creating the class Square like this:
class Square(Rectangle):
def __init__(self, side):
# equivalent to `Rectangle.__init__(self, side, side)`
self.side = side
super().__init__(side, side)
def set_side(self, side):
self.side = side
def __str__(self):
return "Square(side={s})".format(s = self.side)
Now, here is where things get strange: Whenever I use the set_side() in the Square class, it is not updating my instance of the object and keeping the original side…
# Reactangle and Square classes
class Rectangle:
def __init__(self, width, height):
self.width = width
self.height = height
def __str__(self):
return "Rectangle(width={w}, height={h})".format(h=self.height, w=self.width)
def set_width(self, width):
self.width = width
def set_height(self, height):
self.height = height
def get_area(self):
self.area = self.width*self.height
return self.area
def get_perimeter(self):
self.perimeter = 2 * self.width + 2 * self.height
return self.perimeter
def get_diagonal(self):
self.diagonal = (self.width ** 2 + self.height ** 2) ** 0.5
return self.diagonal
def get_picture(self):
a = ""
pic = ''''''
if self.width >= 50 or self.height >= 50:
return "Too big for picture."
else:
for i in range(self.width):
a += "*"
for j in range(self.height):
pic += a + "\n"
return pic
def get_amount_inside(self, other_shape):
if not isinstance(other_shape, Rectangle):
return f"{other_shape} is not the right type of object."
else:
width_units = self.width/other_shape.width
return other_shape.width
class Square(Rectangle):
def __init__(self, side):
# equivalent to `Rectangle.__init__(self, side, side)`
self.side = side
super().__init__(side, side)
def set_side(self, side):
self.side = side
def __str__(self):
return "Square(side={s})".format(s = self.side)
rect = Rectangle(10, 5)
print(rect.get_area())
rect.set_height(3)
print(rect.get_perimeter())
print(rect)
print(rect.get_picture())
sq = 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)
In the code I am creating a rectangle rect with a width of 10 and a height of 5. I get the right output after resetting the height to 3 and the perimeter is also correct after this modification… The code also prints correctly the characteristics of the object and draws a nice picture… Swell… See it here:
With the square though, I don’t get what’s expected for the diagonal calculation:
I create the instance of square sq with a size of 9. Swell, the area is 81… Then I change the side to 4 and the diagonal is wrong as it asumes that the square side is still 9 (diagonal is 12.73) and paints a picture of square with side 9… The print statement of the new square with side 4 is right…
Man! Yours also work! I just used the two inherited methods from the parent class to define another… Am I a terrible person? (Please, don’t answer the question )
)