how to sort python linked list without using built in commands to print display descending order on age? class LinkedLis

[correctanswer]

how to sort python linked list without using built in
commands to print display descending order on age?
class LinkedList:
def __init__(self, data):
self.label = data[0][0]
self.age = data[0][1]
self.tail = None if (len(data) ==1) else
LinkedList(data[1:])
people = LinkedList (["bob", 49),("tom", 36), ("mary", 21)]