関連ワード:  how to open a function 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 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    how to call a function in python explain with an example