Python - Find second smallest number

Question

I found this code on this site to find the second largest number:

def second_largest(numbers):
    m1, m2 = None, None
    for x in numbers:
        if x >         


        

Answer 1

Here is:

def find_second_smallest(a: list) -> int:
    first, second = float('inf')
    for i in range(len(a)):
        if a[i] < first:
            first, second = a[i], first
        elif a[i] < second and a[i] != first:
            second = a[i]
    return second

input: [1, 1, 1, 2]
output: 2