pick random from array python code example

Example 1: how to get a random element from an array in python

import random
names=['Mark', 'Sam', 'Henry']

#Set any array
random_array_item=random.choice(names)

#Declare a variable as a random choice
print(random_array_item)

#Print the random choice
#Or, if you want to arrange them in any order:
for j in range(names):
  print(random.choice(names))

Example 2: sample 1 item from array python

import random
cakes = ['lemon', 'strawberry', 'chocolate']
random.choice(cakes)
# prints 1 randomly selected item from the collection of n items with 
# the probability of selection as 1/n

Example 3: 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

Example 4: select random value from list 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 list without replacement and return a list
random.sample(list_name, 2)

# Randomly select 3 elements from list with replacement and return a list
random.choices(set_name, k=3)

# Returns 1 random element from list
random.choice(list_name)