関連ワード:  what is bool 0 in python    what is the output of bool 0 in python    what is the result of bool 0 in python    what is the value of bool(0) in python    what is the output of print bool 0 )) in python    what will bool 0 return in python    what is the output of bool o in python    what is bool in python    is 0 true or false in python    define bool in python