Get telgrass reviews

get_reviews.py

import json
from time import sleep

from telethon import TelegramClient

with open('config.json', 'r') as f:
    config = json.load(f)
client = TelegramClient('session_id', api_id=config['api_id'],
                        api_hash=config['api_hash'])
client.connect()
if not client.is_user_authorized():
    client.send_code_request(config['phone'])
    client.sign_in(phone, input('Enter the code: '))
dialogs, entities = client.get_dialogs(10)
for entity in entities:
    if entity.id == config['chat_id']:
        chunk_size = 100
        last_id = 374747
        while True:
            total_messages, messages, senders = \
                client.get_message_history(
                    entity,
                    limit=chunk_size,
                    offset_date=None,
                    offset_id=last_id,
                    max_id=0,
                    min_id=0,
                    add_offset=0)

            if not messages:
                break
            for msg in messages:
                try:
                    clean_line = [line for line in
                                  msg.message.split('\n\n') if
                                  line.strip() != '']
                    print(clean_line)
                except IndexError:
                    pass
                except AttributeError:
                    pass
            last_id = min(msg.id for msg in messages)
            sleep(1)