関連ワード:  how do i write a function in python    how do i create a function in python    how to write a function in python with return    how to write a function in python with arguments    how to write a function in python with parameters    how to write a function in python example    how do you create a function in python with example    how do you write a recursive function in python    how to write a method in python    how to write a def in python