35_classmethod_staticmethod

class Employe:
    no_of_emp = 0
    raise_amount = 2.5
    def __init__(self, fname, lname, pay):
        self.first = fname
        self.last = lname
        self.pay = pay

        Employe.no_of_emp += 1

    def name(self):
        self.mail = self.first + '@gmail.com'
        # return ('{} {}'.format(self.first, self.last))
        return ('{}'.format(self.mail))


    def apply(self):
        self.pay = self.pay * self.raise_amount

    @classmethod                        # is used to set value through obj
    def chng_raise_amnt(cls, amount):
        cls.raise_amount = amount

    @classmethod
    def form_str(cls, emp_str):
        fn, ln, amn = emp_str.split('-')
        return cls(fn,ln,amn)



emp_1 = Employe('riju', 'chowdhury', '3000')
# emp_1.apply()
# emp_1.pay

emp_str_1 = 'samrat-mitra-6000'
new_emp_1 = Employe.form_str(emp_str_1)

print(new_emp_1.name())

# emp_1.chng_raise_amnt(3.09)

# print(Employe.raise_amount)
# print(emp_1.raise_amount)
# print(emp_1.raise_amount)