diy2.py

alist = [88, 75, 72, 82, 90, 85, 78, 91]

n = len(alist)

for i in range(0, n-1):
    for j in range(0, n-1):
        if alist[j] > alist[j + 1]:
            alist[j], alist[j + 1] = alist[j + 1], alist[j]
    print(alist)