[Python] Updating the output of a function that takes a changing list as an input

I have a function called max_list that returns the largest number in a randomly generated list (I know there is an inbuilt function, this is just for practice)

import random
L = []
rang = 100 #number size limit
r = 10 #size of list

for i in range(r):
L.append(random.randint(0, rang))

def max_list(L):
max_in_list = L[0]
for j in range(len(L)):
if max_in_list == rang: #if max_in_list is the highest it can be it must be the maximum
return max_in_list
elif L[j] > max_in_list: #if tere is a value greater than max_in_list it becomes the new max_in_list
max_in_list = L[j]
if j+1 == r:
return max_in_list
elif j+1 == r: #if it reaches the end of the list it must be the largest
return max_in_list


My problem comes when trying to remove the largest element in the list one by one (the idea is to also append it to a new list) so for example in the list ls = [1, 2, 3] it should first remove the 3, then the 2 and so on

for k in range(len(L)):
L.remove(max_list(L))


The thing is, it seems to be that the list does not update and max_list(L) remains fixed so on the second iteration it will append None (since it was removed in the first iteration) and result in an error: L.remove(max_list(L)) ValueError: list.remove(x): x not in list

With the example I gave before (ls = [1, 2, 3]), it would remove the 3 but on the second iteration it will try to remove the 3 instead of 2 (which would be the new max) resulting in an error

When using the inbuilt max() function it seems to work, so I think there is something wrong with the function.

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