telesetup.py

#!/usr/bin/env python3
# (c) https://t.me/TelethonChat/37677
# This Source Code Form is subject to the terms of the GNU
# General Public License, v.3.0. If a copy of the GPL was not distributed with this
# file, You can obtain one at https://www.gnu.org/licenses/gpl-3.0.en.html.

from telethon.sync import TelegramClient
from telethon.sessions import StringSession

print("""Please go-to my.telegram.org
Login using your Telegram account
Click on API Development Tools
Create a new application, by entering the required details
For TeleBot""")
print("")

APP_ID = int(input("Enter APP ID here: "))
API_HASH = input("Enter API HASH here: ")

with TelegramClient(StringSession(), APP_ID, API_HASH) as client:
    tele = client.send_message("me", client.session.save())
    tele.reply(
        "The above is the `STRING_SESSION` for your current session.\n@TeleBotSupport")
    print("")
    print("")
    print("Below is the STRING_SESSION. You can also find it in your Telegram Saved Messages.")
    print("")
    print("")
    print(client.session.save())