The choices() method returns multiple random elements from the list with replacement. You can weigh the possibility of each result with the weights parameter or the cum_weights parameter. The elements can be a string, a range, a list, a tuple or any other kind of sequence.
Syntax : random.choices(sequence, weights=None, cum_weights=None, k=1)
Parameters :
1. sequence is a mandatory parameter that can be a list, tuple, or string.
2. weights is an optional parameter which is used to weigh the possibility for each value.
3. cum_weights is an optional parameter which is used to weigh the possibility for each value but in this the possibility is accumulated
4. k is an optional parameter that is used to define the length of the returned list.
Note: This method is different from random.choice().
Example:
import random mylist = ["geeks", "for", "python"] print(random.choices(mylist, weights = [10, 1, 1], k = 5)) |
Note: Every time output will be different as the system returns random elements.
Output:
['geeks', 'geeks', 'geeks', 'for', 'for']
Practical application: Print a random list with 6 items.
import random mylist = ["apple", "banana", "mango"] print(random.choices(mylist, weights = [10, 1, 1], k = 6)) |
Note: The output changes every time as choices() function is used.
Output:
['apple', 'banana', 'apple', 'apple', 'apple', 'banana']
Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.
To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.
