Hi! I don't understand why my code doesn't run correctly. I've read several similar topics but haven't find the answer..
It returns me the following :
"Traceback (most recent call last):
** File "python", line 17, in **
AttributeError: Triangle instance has no attribute 'check_angles'"
What am I doing wrong?
Here's my code:
class Triangle(): number_of_sides = 3 def __init__(self, angle1, angle2, angle3): self.angle1 = angle1 self.angle2 = angle2 self.angle3 = angle3 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()