A python script to download a file from Telegram

TelegramDownloader.py

# Usage: At first send the file to your saved messages. Make sure it's the last message and run this script with python
# At first install Telethon and humanize with pip3 install telethon humanize cryptg
# Note that cryptg is optional and only is used for speeding up the downloads
import asyncio
import humanize
from telethon import TelegramClient

# These example values won't work. You must get your own api_id and
# api_hash from https://my.telegram.org, under API Development.
api_id = 12345
api_hash = '0123456789abcdef0123456789abcdef'


def upload_progress_callback(downloaded_bytes, total_bytes):
    print("Downloaded: " + humanize.naturalsize(downloaded_bytes) + " of " + humanize.naturalsize(total_bytes),
          end='\r')


async def load():
    async with TelegramClient('session_name', api_id, api_hash) as client:
        messages = await client.get_messages('me', limit=1)
        await messages[0].download_media(progress_callback=upload_progress_callback)


loop = asyncio.get_event_loop()
loop.run_until_complete(load())