Argparse ---> Парсинг словаря

import sys
import argparse
s = {}
i = 1
so = False
while True:
    try:
        if sys.argv[i] == '--sort':
            so = True
        else:
            t = sys.argv[i].split('=')
            s[t[0]] = t[1]
    except IndexError:
        break
    i += 1
if not so:
    for i in s.keys():
        print('Key:', i, 'Value:', s[i])
else:
    for i in sorted(s.keys()):
        print('Key:', i, 'Value:', s[i])