inheritance

[snippsat]

self act like a transportation between between class/method internally and in a inheritance setup.
I have give example better names,so it kind of make sense.

class First():
    def number_input(self):
        self.x = int(input("whats your first number?\n"))

class Second(First):
    def result(self):
        z = self.x + 2
        print(z)

Test:

Output:
>>> obj = Second()

>>> obj.number_input()
whats your first number?
50
>>> obj.result()
52