call @classmethod from another @classmethod of another class

Question

I have two python files as

one.py

class FirstClass:
    @classmethod
    def myClass(cls,first, second):
        return first+second

two.py

from one import FirstClass

class SecondClass:
    @classmethod
    def herClass(cls, val1, val2):
        FirstClass.myClass(val1,val2)

ob = SecondClass()
print(ob.herClass(2,3))

How can I access the classmethod of one class from the classmethod of another class. If not possible, what might be the possible solution. FirstClass needs to remain same, I have flexibility changing the method type on SecondClass.

Since, In myClass method, you are not using cls, So it is better to define it as a staticmethod. — Arpit Svt, Jan 23 '19 at 04:55

score 2 · Accepted Answer · answered Jan 23 '19 at 04:51

2

It's possible, but you're missing the return of this function

def herClass(cls, val1, val2):
        return FirstClass.myClass(val1,val2)

answered Jan 23 '19 at 04:51

Chien Nguyen

648
5
7

score 0 · Answer 2 · answered Jan 23 '19 at 04:51

0

There is nothing wrong with your implementation just add return statement in SecondClass.herClass

Corrected code will look like this

class SecondClass:
    @classmethod
    def herClass(cls, val1, val2):
        return FirstClass.myClass(val1,val2)

answered Jan 23 '19 at 04:51

Arpit Svt

1,153
12
20

call @classmethod from another @classmethod of another class

2 Answers2