Python one-line “for” expression

Question

I\'m not sure if I need a lambda, or something else. But still, I need the following:

I have an array = [1,2,3,4,5]. I need to put this array, for insta

Answer 1

Using elements from the list 'A' create a new list 'B' with elements, which are less than 10

Option 1:

A = [1, 1, 2, 3, 5, 8, 13, 4, 21, 34, 9, 55, 89]

B = []
for i in range(len(A)):
    if A[i] < 10:
        B.append(A[i])
print(B)

Option 2:

A = [1, 1, 2, 3, 5, 8, 13, 4, 21, 34, 9, 55, 89]

B = [A[i] for i in range(len(A)) if A[i] < 10]
print(B)

Result: [1, 1, 2, 3, 5, 8, 4, 9]