test_io.py 文件源码

def test_missing(self):
        data = TextIO('1,2,3,,5\n')
        test = np.ndfromtxt(data, dtype=int, delimiter=',',
                            converters={3: lambda s: int(s or - 999)})
        control = np.array([1, 2, 3, -999, 5], int)
        assert_equal(test, control)