Merge two or more lists with given order of merging

Question

On start I have 2 lists and 1 list that says in what order I should merge those two lists. For example I have first list equal to [a, b, c] and second list equa

Answer 1

How about this,

list1 = ['a', 'b', 'c']
list2 = ['d', 'e']
options = [0,1,0,0,1] 

list1_iterator = iter(list1)
list2_iterator = iter(list2)

new_list = [next(list2_iterator) if option else next(list1_iterator) for option in options]

print(new_list)
# Output
['a', 'd', 'b', 'c', 'e']