Mastering Python Scripting for System Administrators

Using arrays and scalars

In this section, we are going to look at various arithmetic operations on arrays using numpy. For that, first we will create a multidimensional array, as follows:

student@ubuntu:~$ python3Python 3.6.7 (default, Oct 22 2018, 11:32:17)[GCC 8.2.0] on linuxType "help", "copyright", "credits" or "license" for more information.>>> import numpy as np>>> from __future__ import division>>> arr = np.array([[4,5,6],[7,8,9]])>>> arrarray([[4, 5, 6],       [7, 8, 9]])>>> 

Here, we imported the numpy module to use the numpy functionality, and then we imported the __future__ module that will take care of floats. After that, we created a two dimensional array, arr, to perform various operations on it.

Now, let's look at some arithmetic ...