The following code has a logical error:

1) class ABC:

2)   def __init__(self):

3)      self.x = 2

4)   def __truediv__(self, other):

5)      tmp = ABC()

6)      tmp.x = self.x / other.x

7)      return self

8)   a1 = ABC()

9)   a2 = ABC()

10) a1 = a1 / a2

11) print(a1.x)  

Which line has the logical error so that once fixed the overloading will work correctly?