In [1]:
def bubble_sort(a):
    n = len(a)
    for i in range(n):
        for j in range(0, n-i-1):
            if a[j] > a[j+1]:
                a[j], a[j+1] = a[j+1], a[j]
    return a

In [2]:
alist = [4,2,1,10,5,3,100]
print(bubble_sort(alist))


[1, 2, 3, 4, 5, 10, 100]

In [ ]: