import requests
import re

def get_new_posts(n, brd, thr):
    r = requests.get('http://2ch.hk/{}/res/{}.json'.format(brd, thr))
    if r.status_code != 200:
        print('треда больше нет')
        exit(0)
    j = r.json()['threads'][0]['posts']
    l = [(i['comment'], 'http://2ch.hk/{}/res/{}.html#{}'.format(brd, thr, i['num'])) for i in j]
    return l[n:]

def main(brd, thr, wrd):
    n = 0
    while True:
        p = get_new_posts(n, brd, thr)
        n += len(p)
        l = [i[1] for i in p if i[0].find(wrd) != -1]
        if l != []:
            for i in l:
                print('это слово в этом посте ' + i)

brd = input('доска ')
thr = input('тред ')
wrd = input('какое слово икать? ')
main(brd, thr, wrd)