Concatenate two arrays (lists) in Python

Set up arrays

list_one = [7, 6, 5]list_two = [4, 3, 2]

Concatenate arrays horizontally

#horizontallymerged_list = list_one + list_twomerged_list

[7, 6, 5, 4, 3, 2]

Concatenate arrays vertically

#vertically
import numpy as np
np.vstack((list_one,list_two))

array([[7, 6, 5], [4, 3, 2]])