Please somebody tell me what's wrong with this. It keeps saying "Did you create an instance of Triangle called my_triangle?" As far as I can see, I have, correctly. I don't see what the problem is.
can you copy paste your code to the forum so we can run it?
class Triangle(object): def __init__(self, angle1, angle2, angle3): angle1 = self.angle1 angle2 = self.angle2 angle3 = self.angle3 number_of_sides = 3 def check_angles(self): if self.angle1 + self.angle2 + self.angle3 == 180: return True else: return False my_triangle = Triangle(90, 30, 60) print my_triangle.number_of_sides print my_triangle.check_angles()
could you explain what you do here:
angle1 = self.angle1 angle2 = self.angle2 angle3 = self.angle3
Ah, okay, didn't realise the syntax only worked the other way around as I didn't get an error message when I wrote it that way in lessons 15 and 16 and it went through fine then. Have reversed the syntax and now it works fine for 17. Thank you!
you do understand what this syntax does, right? It makes your instance variable accessible through self, of course this only works one way
Yeah thinking about it properly I understand the concept, I just hadn't realised I'd made a mistake in the first place, so didn't think to think through the logic of it. I understand now, thanks.