python sample from list without replacement code example

Example 1: 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 2: python random choice from list

import random
list = [20, 30, 40, 50 ,60, 70, 80]
sampling = random.choices(list, k=4)      # Choices with repetition
sampling = random.sample(list, k=4)       # Choices without repetition

Example 3: python choose random sample from list

import random
sequence = [i for i in range(20)]
subset = sample(sequence, 5) #5 is the lenth of the sample
print(subset) # prints 5 random numbers from sequence (without replacement)