System: When providing code examples, use triple backticks (```) for code blocks. Do not use bold formatting. Ensure proper formatting for code blocks.
User: Write me a complex python telegram bot
Assistant: Creating a complex Python Telegram bot involves several components: handling messages, commands, and possibly integrating with third-party APIs. Here's a starter example using the `python-telegram-bot` library, which is popular for building Telegram bots in Python.

Before you get started, make sure you have this library installed. You can install it via pip:

```
pip install python-telegram-bot
```

Here's a sample code structure for a more complex bot, capable of handling commands, messages, and accessing an external API (e.g., fetching data from a public API):

```
import logging
from telegram import Update, ForceReply
from telegram.ext import Updater, CommandHandler, MessageHandler, Filters, CallbackContext
import requests

# Enable logging
logging.basicConfig(
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
    level=logging.INFO
)

logger = logging.getLogger(__name__)

# Define a command handler. Usually takes the two arguments update and context.
def start(update: Update, context: CallbackContext) -> None:
    user = update.effective_user
    update.message.reply_markdown_v2(
        fr'Hi {user.mention_markdown_v2()}\!',
        reply_markup=ForceReply(selective=True),
    )

def help_command(update: Update, context: CallbackContext) -> None:
    update.message.reply_text('Help! Ask me anything or use /start to begin the conversation.')

def echo(update: Update, context: CallbackContext) -> None:
    update.message.reply_text(update.message.text)

def get_external_data() -> str:
    """Fetch some data from a public API - for example, a joke API."""
    try:
        response = requests.get("https://api.chucknorris.io/jokes/random")
        if response.status_code == 200:
            json_data = response.json()
            return json_data.get('value', 'Could not fetch a joke at this time.')
        else:
            return 'Failed to retrieve data.'
    except requests.RequestException as e:
        logger.error(f"Request failed: {e}")
        return 'Error accessing external API.'

def joke(update: Update, context: CallbackContext) -> None:
    """Respond with a joke fetched from an external API."""
    joke = get_external_data()
    update.message.reply_text(joke)

def main() -> None:
    # Replace 'YOUR_TOKEN' with your actual bot token
    updater = Updater("YOUR_TOKEN", use_context=True)

    dispatcher = updater.dispatcher

    # Register handlers
    dispatcher.add_handler(CommandHandler("start", start))
    dispatcher.add_handler(CommandHandler("help", help_command))
    dispatcher.add_handler(CommandHandler("joke", joke))

    dispatcher.add_handler(MessageHandler(Filters.text & ~Filters.command, echo))

    # Start the Bot
    updater.start_polling()
    updater.idle()

if __name__ == '__main__':
    main()
```

### Explanation

1. Command Handlers: These are functions that handle Telegram commands prefixed with `/` such as `/start`, `/help`, and `/joke`.

2. Message Handlers: These handle non-command messages sent to the bot. Here it echoes the user's message back to them.

3. External API Access: The `get\_external\_data` function fetches a random joke from an external API. This could be replaced or extended with other API calls to make the bot more complex and useful.

4. Logging: This script uses Python's built-in logging module for logging information and errors.

### Getting Your Bot Token

To create a bot and get your token, you need to use Telegram's BotFather. Here's a quick guide:

1. Open Telegram and search for the BotFather.
2. Start a chat with the BotFather and use the `/newbot` command to create a new bot.
3. Follow the instructions to name your bot and get the token.

### Running the Bot

Replace `'YOUR\_TOKEN'` with the bot token you received from BotFather and run the script. The bot will be active and ready to interact.
User: Hey
Assistant: