calling method from a class does not work

Question

This class Employee is supposed to print 50001 when the method of apply_method i called. however it's printed "None". I am tuck please help.

class Employee:
    
    def __init__(self,first,last,pay):
        self.first = first
        self.last = last
        self.pay = pay
        self.email = first + '.' + last + '@mycompany.com'

    def fullname(self):
        return '{} {}'.format(self.first,self.last)

    def apply_method(self):
        self.pay =  int(self.pay + 1) 

empl_1 =Employee('John','Gan',50000)
print(empl_1.apply_method())

What output were you expecting? Hint: https://stackoverflow.com/questions/10067013/is-it-possible-to-not-return-anything-from-a-function-in-python — AMC, Sep 26 '20 at 22:04

score 1 · Answer 1 · answered Sep 26 '20 at 21:27

It's because you need a return in apply_method

class Employee:
    
    def __init__(self,first,last,pay):
        self.first = first
        self.last = last
        self.pay = pay
        self.email = first + '.' + last + '@mycompany.com'

    def fullname(self):
        return '{} {}'.format(self.first,self.last)

    def apply_method(self):
        self.pay = int(self.pay + 1) 
        return self.pay

empl_1 =Employee('John','Gan',50000)
print(empl_1.apply_method()) 
#or print(empl_1.pay)

score 1 · Answer 2 · answered Sep 26 '20 at 21:27

1

You don't have return clause in apply_method. Try this;

def apply_method(self):
    self.pay =  int(self.pay + 1)
    return self.pay

If you want to print an output of a function or method, that function or method needs to return something.

answered Sep 26 '20 at 21:27

malisit

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You should choose one of the answers as the correct one. – malisit Sep 29 '20 at 21:58

Shradha · Answer 3 · 2020-09-26T21:39:48.173

1

It's because the function is not returning anything. You need to return self.pay-

def apply_method(self):
    self.pay =  int(self.pay + 1)  
    return self.pay

edited Sep 26 '20 at 21:39

answered Sep 26 '20 at 21:28

Shradha

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calling method from a class does not work

3 Answers3