add entry to numpy array python code example

Example 1: append value to numpy array

x = np.random.randint(2, size=10)
x = np.append(x, 2)

Example 2: add item to numpy array python

>>> np.append([1, 2, 3], [[4, 5, 6], [7, 8, 9]])
array([1, 2, 3, ..., 7, 8, 9])