Python Program to Get n Random Items from a List

In the previous article, we have discussed Python Program Divide all Elements of a List by a Number
Random Module in python :

As this Random module is one of Python’s predefined modules, its methods return random values.

It selects integers uniformly from a range. For sequences, it has a function to generate a random permutation of a list in-place, as well as a function to generate a random sampling without replacement. Let’s take a look at how to import the Random Module.

The random module in Python is made up of various built-in Methods.

choice(): choice() is used to select an item at random from a list, tuple, or other collection.

Because the choice() method returns a single element, we will be using it in looping statements.
sample(): To meet our needs, we’ll use sample() to select multiple values.

Examples:

Example1:

Input:

Given no of random numbers to be generated = 5
Given list =[1, 2, 3, 2, 2, 1, 4, 5, 6, 8, 9]

Output:

The given 5 Random numbers are :
2
3
8
6
9

Example 2:

Input:

Given no of random numbers to be generated = 3
Given list = [2, 1, 6, 1, 4, 5, 6, 8]

Output:

The given 3 Random numbers are :
6
5
1

Program to Get n Random Items from a List

Below are the ways to Get n Random Items from a Given List.

Using random.choice() Method (Static input)
Using random.choice() Method (User input)

Method #1: Using random.choice() Method (Static input)

Approach:

Import random module using the import keyword.
Give the number as static input and store it in a variable.
Give the list as static input and store it in another variable.
Loop in the given list above given ‘n’ number of times using For loop.
Inside the loop, apply random.choice() method for the above-given list and store it in a variable.
Print the given number of random numbers to be generated.
The Exit of the program.

Below is the implementation:

# Import random module using the import keyword.
import random
# Give the number as static input and store it in a variable.
randm_numbrs = 3
# Give the list as static input and store it in another variable.
gvn_lst = [1, 2, 3, 2, 2, 1, 4, 5, 6, 8, 9]
print("The given", randm_numbrs, "Random numbers are :")
# Loop above given 'n' number of times using For loop.
for itr in range(randm_numbrs):
  # Inside the loop, apply random.choice() method for the above given list and
  # store it in a variable.
    reslt = random.choice(gvn_lst)
   # Print the given numbers of random numbers to be generated.
    print(reslt)

Output:

The given 3 Random numbers are :
5
3
4

Method #2: Using random.choice() Method (User input)

Approach:

Import random module using the import keyword.
Give the number as user input using int(input()) and store it in a variable.
Give the list as user input and using list(),map(), int(),input(),and split() functions store it in another variable
The loop above given ‘n’ number of times using For loop.
Inside the loop, apply random.choice() method for the above-given list and store it in a variable.
Print the given number of random numbers to be generated.
The Exit of the program.

Below is the implementation:

# Import random module using the import keyword.
import random
# Give the number as user input using int(input()) and store it in a variable.
randm_numbrs = int(input("Enter some random number = "))
#Give the list as user input and using list(),map(), int(),input(),and split() functions 
#store it in another variable
gvn_lst = list(map(int, input(
   'Enter some random List Elements separated by spaces = ').split()))
print("The given", randm_numbrs, "Random numbers are :")
# Loop above given 'n' number of times using For loop.
for itr in range(randm_numbrs):
 # Inside the loop, apply random.choice() method for the above given list and
 # store it in a variable.
    reslt = random.choice(gvn_lst)
 # Print the given numbers of random numbers to be generated.
    print(reslt)

Output:

Enter some random number = 4
Enter some random List Elements separated by spaces = 1 2 3 4 5 6 7 8 9 
The given 4 Random numbers are :
2
2
4
8

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