removing quotes from a list and keep type list

[evilcode1]

hello all ..
im trying to use sys.argv take and ip like : 192.168.1.99 and convert it to [192.168.1.99] ... but it add '

import sys

start = sys.argv[1]
start = start.replace(".", ",")
start = [start]
print(start)

Output:
['85,8,8,8']

i need to remove ' from it and print it like : [85,8,8,8] but i need to keep the type (list) not str
how i can do that