get random number from list python code example

Example 1: 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 2: how to print a random part of a list in python

import random

foo = ['a', 'b', 'c', 'd', 'e']
print(random.choice(foo))

Example 3: pick a random number from a list in python

import random

numberList = [1,2,3,4,5]
print(random.choice(numberList))    # Prints a random number from the list

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)

Example 5: place a number randomly in a list python

offsetBiasSample = [randint(-10,10)/100 for i in range(10)]
offsetBias = choice(offsetBiasSample)
index_offsetBias = randint(0,len(oldBiases)-1)
oldBiases[index_offsetBias] = oldBiases[index_offsetBias] + offsetBias