Python Find second smallest number

Python Find second smallest number

def get_second_smallest(numbers):
    num1, num2 = float('inf'), float('inf')
    print num1, num2
    print '#####'
    for x in numbers:
        if x <= num1:
            num1, num2 = x, num1
            print num1, '-------', num2
        elif x < num2:
            num2 = x
            print num1, '-------', num2
        else:
            print 'pass... ' + str(x)
    return num2

out = get_second_smallest([2, 3, 4, 5, 1, 1.3, 1.5])
print '\nOutput: ' + str(out)

Output:
2 ------- inf
2 ------- 3
pass... 4
pass... 5
1 ------- 2
1 ------- 1.3
pass... 1.5

Output: 1.3