tg_filter.py

#!/usr/bin/env python3

from json import loads
from subprocess import Popen, PIPE

KILL_LIST = {IDS_OF_ANNOYING_PEOPLE} # find them by running telegram-cli --json interactively, or run this and watch their ids together with their screen name

tg = Popen(['telegram-cli', '-C', '--json'], stdin=PIPE, stdout=PIPE)

for line in tg.stdout:
    line = str(line, 'utf-8')
    try:
        line = line[line.index('{'):]
    except ValueError:
        continue
    event = loads(line)
    if event.get('event', None) != 'message':
        continue
    print(event['from']['id'], event['from'].get('print_name', None))
    if event['from']['id'] in KILL_LIST:
        print(event)
        tg.stdin.write(b'delete_msg {}\n'.format(event['id']))
        tg.stdin.flush()