In this article you will learn about a function named choice()which is used to select random item from a listother sequence types in python. This function is provided by random module in python. Hence to work on choice() initially you need to import random module.
Method #1 : Using random.choice()
This is is the most common method to choose a random number from a list.
Example:
# using random.choice()
import random
# initializing list
test_list = [1, 6, 9, 2, 10]
# using random.choice() to
# get a random number
random_num = random.choice(test_list)
# printing random number
print ("Random number is : " + str(random_num))
Output:
Method #2 : Using random.randrange()
In this method we can specify the range for lists as 0 to its length, and get the index, and then corresponding value.
Example:
# using random.randrange
import random
# initializing list
test_list = [1, 6, 9, 2, 10]
# using random.randrange() to
# get a random number
rand_idx = random.randrange(len(test_list))
random_num = test_list[rand_idx]
# printing random number
print ("Random number is : " + str(random_num))
Output:
Method #3 : Using random.randint()
This is also used to make any number in a range. By using that number’s index we find the corresponding value. It requires 2 mandatory arguments for range.
Example:
# using random.randint()
import random
# initializing list
test_list=[1, 6, 9, 2, 10]
# using random.randint() to
# get a random number
rand_idx = random.randint(0, len(test_list)-1)
random_num = test_list[rand_idx]
# printing random number
print ("Random number is : " + str(random_num))
Output:
