message_service

I'm getting TypeError: 'MessageService' object is not iterable

Fist I'm saving last 10 messages from a channel using iter_messages client method which returns telethon.sync._SyncGen generator object. Then I'm iterating over this generator and trying send each message (msg) to the user (username) through client's send_message method which can take either str or telethon Message object as a message argument.

However my msg object here is not an instance of the Message class but MessageService class (https://lonamiwebs.github.io/Telethon/constructors/message_service.html) and I assume this is the reason I'm getting the error.

For clarification, when I say base image, I mean the parent image that has all the common configurations, so that the children based on it don't need to download the dependencies individually.

From my understanding, docker-compose.yml files are the run-time configurations, while Dockerfiles are the build-time configurations. However, there is a build option using docker-compose, and I was wondering how I could use this to build a base image.

As of right now, I use a shellscript that runs other shellscripts. One builds all my images, from a base image that it also creates. The other runs them as containers with the necessary configurations. However, the base image is never ran as a container.

Currently, the shellscript I hope to change into a docker-compose file, looks like so:

My initial reason for creating a docker-compose.yml, was to take advantage of features such as build: and depends-on: to make a single file that builds all my images and runs them in containers. However, I noticed version 3 depreciates most of these functions, and I'm curious why I would use this over building a shellscript.

This is currently my shellscript that runs all my containers (I assume this is what the version 3 docker-compose file would replace if I were to use it):