checkBMS.py

import time
import winsound
import requests
from bs4 import BeautifulSoup

check_show_count = True;
when_i_saw_count = 0;
ping_count = 0;
try:
    while check_show_count:
        page=requests.get('https://in.bookmyshow.com/buytickets/avengers-endgame-bengaluru/movie-bang-ET00100559-MT/20190427')
		#	https://in.bookmyshow.com/buytickets/avengers-endgame-bengaluru/movie-bang-ET00100559-MT/20190427
		#
        ping_count+=1; 
        soup=BeautifulSoup(page.text,'html.parser')
        cfbs_obj=soup.find("li",{"data-id":"CFBS"})
        show_items=cfbs_obj.find("div",{"class":"body"}).findAll("div",{"data-online":"Y"})
        if len(show_items)!=when_i_saw_count:
            check_show_count=False;
            print("Woo !, ticket found, trying to ring a bell");
        else:
            print("Alas!, no new show since " + str(ping_count) + " pings");
            print("again pinging the url")
        time.sleep(30);

    try:
        while True:
            winsound.MessageBeep()
            time.sleep(1)
    except KeyboardInterrupt:
        print("Notification sound stopped");

except KeyboardInterrupt:
    print('interrupted!')