Best way to split a list into randomly sized chunks? [closed]

Answer 1

This is my approach to it: All resultant lists will have at least one element, but it may return a list with all numbers.

import random

def randomSublists(someList):
    resultList = [] #result container
    index = 0 #start at the start of the list
    length = len(someList) #and cache the length for performance on large lists
    while (index < length):
        randomNumber = random.randint(1, length-index+1) #get a number between 1 and the remaining choices
        resultList.append(someList[index:index+randomNumber]) #append a list starting at index with randomNumber length to it
        index = index + randomNumber #increment index by amount of list used
    return resultList #return the list of randomized sublists

Testing on the Python console:

>>> randomSublist([1,2,3,4,5])
[[1], [2, 3, 4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1], [2, 3], [4], [5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2, 3, 4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2], [3], [4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2, 3, 4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2, 3, 4], [5]]
>>> randomSublist([1,2,3,4,5])
[[1], [2, 3, 4], [5]]
>>> randomSublist([1,2,3,4,5])
[[1], [2, 3], [4], [5]]
>>> randomSublist([1,2,3,4,5])
[[1], [2], [3, 4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2, 3, 4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2, 3], [4, 5]]
>>> randomSublist([1,2,3,4,5])
[[1, 2, 3, 4], [5]]