# Python | Divide the list into unequal groups

Python Methods and Functions

Method: Using ` itertools.islice () ` + List Comprehension
A combination of the above functions can be used to accomplish this task. In this, ` islice () ` is used to perform the main task of slicing a list, and a list comprehension is used to accomplish the task of linking logic and iterations. The container is converted to an iterator for faster iteration.

 ` # Python3 code to demonstrate how it works ` ` # Split the list into unequal groups ` ` # using itertools.islice () + list comprehension ` ` from ` ` itertools ` ` import ` ` islice `   ` # initialize the list ` ` test_list ` ` = ` ` [` ` 1 ` ` , ` ` 4 ` `, ` ` 5 ` `, ` ` 7 ` `, ` ` 6 ` `, ` ` 5 ` `, ` ` 4 ` `, ` ` 2 ` `, ` ` 10 ` `] `   ` # initialize split list ` ` split_list ` ` = ` ` [` ` 3 ` `, ` ` 4 ` `, ` ` 2 ` `] `   ` # print original list ` ` print ` ` (` ` "The original list is:" ` ` + ` ` str ` ` (test_list )) `   ` # print split list ` ` print ` ` (` ` "The split list is:" ` ` + ` ` str ` ` (split_list)) `   ` # Split the list into unequal groups ` ` # using itertools.islice ( ) + list comprehension ` ` temp ` ` = ` ` iter ` ` (test_list) ` ` res ` ` = ` ` [` ` list ` ` (islice (temp, ` ` 0 ` `, ele)) ` ` for ` ` ele ` ` in ` ` split_list] `   ` # print result ` ` print ` ` (` ` "The resultant split list is:" ` ` + ` ` str ` ` (res)) `

Output:

` The original list is: [1, 4, 5, 7, 6, 5, 4, 2, 10] The split list is: [3, 4, 2] The resultant split list is: [[1, 4, 5], [7, 6, 5, 4], [2, 10]] `