title: How to use telegram-bot to just read the message from channel?
body: <p>Yes, I know I can add my bot to channel as admin and then the bot can work brilliantly.</p>
  
  <p>But what I want to do is to add my bot to other channels to parse the data and do some analysis. How could this be achieved provided that I don't own those channels? Any other possible non-bot methods are welcomed to share.</p>
  
  <p>I am currently using 'twx.botapi' from Python to do bot automation.</p>