test_datetime.py 文件源码

def test_datetime_array_find_type(self):
        dt = np.datetime64('1970-01-01', 'M')
        arr = np.array([dt])
        assert_equal(arr.dtype, np.dtype('M8[M]'))

        # at the moment, we don't automatically convert these to datetime64

        dt = datetime.date(1970, 1, 1)
        arr = np.array([dt])
        assert_equal(arr.dtype, np.dtype('O'))

        dt = datetime.datetime(1970, 1, 1, 12, 30, 40)
        arr = np.array([dt])
        assert_equal(arr.dtype, np.dtype('O'))

        # find "supertype" for non-dates and dates

        b = np.bool_(True)
        dt = np.datetime64('1970-01-01', 'M')
        arr = np.array([b, dt])
        assert_equal(arr.dtype, np.dtype('O'))

        dt = datetime.date(1970, 1, 1)
        arr = np.array([b, dt])
        assert_equal(arr.dtype, np.dtype('O'))

        dt = datetime.datetime(1970, 1, 1, 12, 30, 40)
        arr = np.array([b, dt])
        assert_equal(arr.dtype, np.dtype('O'))