How can I bold text in telepot Telegram bot?

You need to provide a parse_mode Parameter (parse_mode="Markdown").

Or else you will not see any markdown style.

sendMessage(chat_id, "*this text is bold*", parse_mode= 'Markdown') 

See

https://telepot.readthedocs.io/en/latest/reference.html#telepot.Bot.sendMessage

I had that same issue with Markdown parse_mode. I've written send_message on my own, without using telepot's sendMessage method. In this case, its much easier to understand how to deal with this problem:

url = 'https://api.telegram.org/bot<token>'

def send_message(chat_id, text='empty line', parse_mode = 'Markdown'):
    URL = url + 'sendMessage'
    answer = {'chat_id': chat_id, 'text': text, 'parse_mode': 'Markdown'}
    r = requests.post(URL, json=answer)
    return r.json()

if (text == '/bold'):
    send_message(chat_id, 'Here comes the'+'*'+'bold'+'*'+'text!')

On the other hand, you could use curl for sending bold text:

if (text == '/bold'):
    URL = url + 'sendMessage?chat_id='+chat_id+'&text=*Here comes the bold text*&parse_mode=Markdown'
    answer = {'chat_id': chat_id, 'text': text}
    r = requests.post(URL, json=answer)

abstracted from --> How can I write bold in python telegram bot

You should use:

  bot.send_message(chat_id=chat_id, text="*bold* Example message", 
            parse_mode=telegram.ParseMode.MARKDOWN)

Or:

  bot.send_message(chat_id=chat_id, text='<b>Example message</b>', 
              parse_mode=telegram.ParseMode.HTML)

More info at: https://github.com/python-telegram-bot/python-telegram-bot/wiki/Code-snippets#message-formatting-bold-italic-code-