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Python Random choices() Method

❮ Random Methods

Example

Return a list with 14 items.
The list should contain a randomly selection of the values from a specified list, and there should be 10 times higher possibility to select "apple" than the other two:

import random

mylist = ["apple", "banana", "cherry"]

print(random.choices(mylist, weights = [10, 1, 1], k = 14))
Run example »

Definition and Usage

The choices() method returns a list with the randomly selected element from the specified sequence.

You can weigh the possibility of each result with the weights parameter or the cum_weights parameter.

The sequence 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)

Parameter Values

Parameter Description
sequence Required. A sequence like a list, a tuple, a range of numbers etc.
weights Optional. A list were you can weigh the possibility for each value.
Default None
cum_weights Optional. A list were you can weigh the possibility for each value, only this time the possibility is accumulated.
Example: normal weights list: [2, 1, 1] is the same as this cum_weights list; [2, 3, 4].
Default None
k Optional. An integer defining the length of the returned list

❮ Random Methods