Access python dictionary dict

When two data processing functions primarily by
(1): np.save ( "test.npy ", the data structure) ---- stored data
(2): data = np.load ( 'test.npy ") - - fetch data

1, keep a list of

1 z = [[[1, 2, 3], ['w']], [[1, 2, 3], ['w']]]
2 np.save('test.npy', z)
3 x = np.load('test.npy')
4 
5 x:
6 ->array([[list([1, 2, 3]), list(['w'])],
7        [list([1, 2, 3]), list(['w'])]], dtype=object)

 

2, stored dictionary

1 x
2 -> {0: 'wpy', 1: 'scg'}
3 np.save('test.npy',x)
4 x = np.load('test.npy')
5 x
6 ->array({0: 'wpy', 1: 'scg'}, dtype=object)

3. After saving a dictionary to read format, you need to call the following statement (emphasis !!!)

1 data.item()

Converting object data numpy.ndarray dict