.index() show index of both similar elements from a list

Question

Let's say I have a list

list = [1,2,1,3,4,5]

How do I find the index of both the 1 from the list using .index() function in python(or any other methods)?

Answer 1

Just use enumerate() instead:

>>> lst = [1,2,1,3,4,5]
>>> index_one = [i for i, x in enumerate(lst) if x == 1]
>>> index_one
[0, 2]