String Modification In Python

Problem Statement:

We are given a string containing words and numbers(integers). We need to arrange the sort numbers in decreasing order. For example, converting CopyAssignment is 2 years, 5 months, and 2 days old now to CopyAssignment is 5 years, 2 months, and 2 days old now.

Code for String modification in Python:

s = 'CopyAssignment is 2 years, 5 months, and 2 days old now'
l = s.split(' ')
n = []
for i in range(len(l)):
    try:
        l[i] = int(l[i])
        n.append(int(l[i]))
    except:
        pass
n.sort(reverse=True)
j=0
for i in range(len(l)):
    if type(l[i]) is int:
        l[i] = n[j]
        j += 1
for i in range(len(l)):
    l[i] = str(l[i])
print(' '.join(l))