Partition a list items using a list containing partition numbers

Question

Given a list

lst=['a','a','b','b','b','c','d','d']

and a list 'l' containing partition numbers

l=[2,3,1,2]

what I want is

partitioned_lst=[['a','a'],['b','b','b'],['c'],['d','d']]

Answer 1

partitioned_lst=[]
i=0
for n in l:
    partitioned_lst.append(lst[i:i+n])
    i+=n
partitioned_lst