test_io.py 文件源码

def test_autonames_and_usecols(self):
        # Tests names and usecols
        data = TextIO('A B C D\n aaaa 121 45 9.1')
        test = np.ndfromtxt(data, usecols=('A', 'C', 'D'),
                            names=True, dtype=None)
        control = np.array(('aaaa', 45, 9.1),
                           dtype=[('A', '|S4'), ('C', int), ('D', float)])
        assert_equal(test, control)