I'm trying to write a method(it) that compares the size (area) of the rectangle with the area of another rectangle passed as a parameter:
class Rectangle: def __init__(self, x, y): self.width = x self.height = y def area(self): a = self.width * self.height return a def __it__(self,second): return self.area < second.area But I keep getting error:
TypeError: unorderable types: Rectangle() < Rectangle() I'm not to sure how to fix this problem
You had a typo. It's __lt__, not __it__, and you need to call the area() as a function unless you set that as a property.
Fixing all that...
>>> class Rectangle: ... def __init__(self, x, y): ... self.width = x ... self.height = y ... def area(self): ... a = self.width * self.height ... return a ... def __lt__(self,second): ... return self.area() < second.area() ... >>> Rectangle(1,3) > Rectangle(4,5) False Area is a method, you're using it as though it's a variable. Adding parens should fix it (and if you're trying to do less than, it should be __lt__):
def __lt__(self, second): return self.area() < second.area() 