how to randomly select a value from an array python code example

Example 1: select a value randomly in a set python

import random

# with replacement = same item CAN be chosen more than once.
# without replacement = same item CANNOT be chosen more then once.

# Randomly select 2 elements from set without replacement and return a list
random.sample(set_name, 2)

Example 2: python choose random element from list

import random

#1.A single element
random.choice(list)

#2.Multiple elements with replacement
random.choices(list, k = 4)

#3.Multiple elements without replacement
random.sample(list, 4)

Example 3: how to randomly choose from a list python

random.choice(name of list)

Example 4: random picker in python

import random
#dictionary
x_dict = {30:60, 20:40,10:20}
key = random.choice(list(x_dict))
print (key)#if you want it to print 30, 20, or 10
print (x_dict[key])#if you want it to print 60, 40, or 20
print (key,"-", x_dict[key])# if you want to print 30 - 60, 20-40,or 10-20