Why did you publish the Python app using LINE Notify on heroku, but it runs on its own?

import requests
from bs4 import BeautifulSoup
import urllib.request

r=requests.get("***********")

soup = BeautifulSoup(r.content, "html.parser")

css1=soup.find_all("p", class_="top-text")
t_text=css1[0].getText()


msg = t_text

LINE_TOKEN="*************"
LINE_NOTIFY_URL="****************"

def send_jt_information(msg):
    method="POST"
    headers={"Authorization":"Bearer%s"%LINE_TOKEN}
    payload = {"message":msg}
    try:
        payload=urllib.parse.urlencode(payload).encode("utf-8")
        requ=urllib.request.Request(
            url=LINE_NOTIFY_URL, data=payload, method=method, headers=headers)
        urllib.request.urlopen(req)
    except Exception as:
        print("Exception Error:",e)
        sys.exit(1)

defmain():
    send_jt_information(msg)


if__name__=='__main__':
    main()