Percentage chance to make action

Simple problem:

percentage_chance = 0.36

if some_function(percentage_chance):
   # action here has 36% chance to execute
   pass

How can I write some_function, or an expression involving percentage_chance, in order to solve this problem?

Answer

You could use random.random:

import random

if random.random() < percentage_chance:
    print('aaa')