bot.py

import os
import io
import picamera as pc
from dotenv import load_dotenv, find_dotenv
from telegram.ext import Updater
from telegram.ext import CommandHandler

load_dotenv(find_dotenv())

camera = pc.PiCamera()

token = os.environ.get('BOT_ACCESS_TOKEN')
print(token)

updater = Updater(token=token)

dispatcher = updater.dispatcher


def start(bot, update):
    bot.send_message(chat_id=update.message.chat_id, text="Welcome to Kiltiskahvi bot. ")

def send_pic(bot, update):
    stream = io.BytesIO()
    stream.name = 'image.jpg'
    camera.capture(stream, 'jpeg') #todo: put this as file like object instead of writing
    stream.seek(0)
    bot.send_photo(chat_id=update.message.chat_id, photo=stream) 

start_handler = CommandHandler('start', start)
dispatcher.add_handler(start_handler)
send_pic_handler = CommandHandler('pic', send_pic)
dispatcher.add_handler(send_pic_handler)


updater.start_polling()