関連ワード:  what does 0 mean in python    what does axis 0 mean in python    what does shape 0 mean in python    what does 2 == 0 mean in python    what does count 0 mean in python    what does return 0 mean in python    what does keyerror 0 mean in python    what does counter 0 mean in python    what does dtype 0 mean in python    what does sum 0 mean in python