If a class that inherits from another class automatically also inherits its constructor then why bother using super().__init__?

Question

Whats the purpose?
Example:

class A:
def __init__(self, y, x):
self.y = y
self.x = x
class B(A):
def __init__(self,x):
super().__init__(x, x)

Why not just:

class B(A):
pass

Answer 1

For one, you pass values in the super constructor. So it'll need those values regardless now. Plus if you dont do the super's init method, you won't get the x and y attributes cause they will never be set. It doesn't just automatically happen, you still have to do it.