関連ワード:  how to define a empty variable in python    how to create a empty variable in python    how to define a null variable in python    how to define a blank variable in python    how to set a blank variable in python    how to create a null variable in python    how to initialize a null variable in python    how to initialize empty variable in python    how to define undefined variable in python    how to set a variable null in python  
結果 : how to define a empty variable in python