関連ワード:  how to call a subroutine in python    how to call a function in python    how to call a function in python with arguments    how to call a function in python from another file    how to call a subprogram in python    how to call a function in python with return    how to call a function in python from command line    how to call a function in python example    how to call a function in python with parameters    how to call a function in python without arguments