session_generator.py

from asyncio import get_event_loop

try:
    from pyrogram import Client
except Exception as e:
    print(e)
    print("\nInstall pyrogram: pip3 install pyrogram")
    exit(1)


async def generate_string_sesion():
    print("Required pyrogram V2 or greater.")

    API_ID = int(input("Enter API_ID: "))
    API_HASH = input("Enter API_HASH: ")

    async with Client(
        name="USS", api_id=API_ID, api_hash=API_HASH, in_memory=True
    ) as app:
        print(await app.export_session_string())


get_event_loop().run_until_complete(generate_string_sesion())