why it is showing this error

Question

code: class School:
def __init__(self,first,last,pay):
self.first=first
self.last=last
self.pay=pay
class Teachers(School):
def __init__(self,first,last,pay,occupation):
School.__init__(first,last,pay)
self.occupation =occupation

class Principal(School):
def __init__(self, first, last, pay, occupation):
School.__init__(first,last,pay)
self.occupation=occupation

p1= Principal("RK","Meena",115000,"Principal")
t1= Teachers("Manoj","Kumawat",68000,"Teacher")

error: Traceback (most recent call last):
File "/home/socialengineer100/.PyCharmCE2018.2/config/scratches/scratch.py", line 18, in <module>
p1= Principal("RK","Meena",115000,"Principal")
File "/home/socialengineer100/.PyCharmCE2018.2/config/scratches/scratch.py", line 14, in __init__
School.__init__(first,last,pay)
TypeError: __init__() missing 1 required positional argument: 'pay'

Answer 1

use School.__init__(self, 'RK', 'Meena', 115000) or super().__init__('RK', 'Meena', 115000)