wotoWatch.py

import urllib.request;
import sys;
import ctypes  # An included library with Python install.   
import time;
url = sys.argv[1]

while(1):
    with urllib.request.urlopen(url) as response:
        html = response.read()
        if(b"<input" in html):
            ctypes.windll.user32.MessageBoxW(0, "WOTO is open!", "WOTO check message", 0x1000)
            break;
        else:
            time.sleep(1)