I have an array:

b = ['Hi!', 'My Name Is Ivan.', 'I am Beginner Programier ... ']

From it I want to do this:

b = [['Hi!'], ['My Name IS Ivan.'], ['I am Beginner Programier ... ']]

That is, an array, where each element is an array.

Answer 1, Authority 100%

Vanilla Python:

b = list (lambda x: [x], b))

or:

b = [[x] for x in b]

numpy:

import numpy as np # pip install numpy
B = np.asarray (b) .reshape (-1, 1)

Result:

in [36]: b
Out [36]:
Array ([['Hi!'],
    ['My Name Is Ivan.'],
    ['I am Beginner Programier ...']], dtype = '& lt; u27')
In [37]: B.shape
Out [37]: (3, 1)