adding noise to a signal in python

Question

I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic.

On a basic level, my first thought was to go bin b

Answer 1

... And for those who - like me - are very early in their numpy learning curve,

import numpy as np
pure = np.linspace(-1, 1, 100)
noise = np.random.normal(0, 1, 100)
signal = pure + noise