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Telegram Bot Tutorial

In this tutorial, we'll walk through building a simple Telegram Bot using Python. At first, our bot will simply echo back any message we send it, but then we'll extend it to add a database and persist information across chat sessions.

We'll use Python to power our Bot and SQLite to store information persistently across sessions. In summary, this is a tutorial series that will:

• Show you how to write a simple Echo Bot from scratch using Python and the Telegram Bot API (Part 1)
• Extend the Echo Bot into a ToDo list manager bot, backed by a SQLite database (Part 2)
• Show how to run our Bot from a VPS and allow it to scale to more users (Part 3).

Although creating an Echo Bot is simple enough, and you can find various scripts and frameworks online that will give you this as a starting point—we will do everything from scratch and explain every piece of code we write. We'll also look at some subtleties in the Telegram API, and talk about what these mean for us as developers. If you just want to create a Telegram bot as quickly as possible, this tutorial is probably not what you're looking for, but if you want to gain a deeper understanding of how chatbots work and how to build one from scratch, then you're in the right place.