sync_users.py

#!/usr/local/bin/python
from mailmanclient import Client
import os
import sys

CORE_URI=os.environ.get('MAILMAN_CORE_URI','http://mailman-core:8001/3.1')
CORE_USER=os.environ.get('MAILMAN_REST_USER','restadmin')
CORE_PASS=os.environ.get('MAILMAN_REST_PASSWORD','restpass')

client=Client(CORE_URI,CORE_USER,CORE_PASS)

ml_fqdn=sys.argv[1]
ml=client.get_list(ml_fqdn)

current_members=ml.members
new_member_list=[]

for member_email in sys.stdin:
  print("Received {}".format(member_email))
  new_member_list.append(member_email)

for member_email in current_members:
  if member_email not in new_member_list:
    print("Intend to unsubscribe {}".format(member_email))
    # ml.unsubscribe(member_email)

for member_email in new_member_list:
  if member_email not in current_members:
    print("Intend to subscribe {}".format(member_email))
    # ml.subscribe(member_email, pre_verified=True, pre_confirmed=True, pre_approved=True)