how to add elements to numpy array code example

Example 1: np.array to list

>>> a = np.array([1, 2])
>>> list(a)
[1, 2]
>>> a.tolist()
[1, 2]

Example 2: numpy append number to array

import numpy as np
a = np.array([1, 2, 3])
newArray = np.append(a, [10, 11, 12])

Example 3: append value to numpy array

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