please help me understand the part under "thispart" comment

Question

class p_table:

developer = "Humayun Kamran"

#thispart
# instance attribute
def __init__(self, Z, M, EC):
self.Z = Z
self.M = M
self.EC = EC
#thispart

H = p_table(1,1, "1s`1")
He = p_table(2,4,"1s`2")

print("atomic no of H is {}".format(H.Z))

Answer 1

This is the init method of the Class. It work like a constructor in other programming languages. It is called when you create an object of that class. In this case it takes the arguments Z M EC and asignes attributes for all arguments.

Answer 2

self returns the object itself and with sellf.Z you access the attrubute Z of the object which is self points to.
I think you should take a python course since this is pretty trivia.

Answer 3

Okay... But what is "self" here... And why are we assigning self.Z to Z....????

Answer 4

Okay.. I will