Retrieving Facebook Page comments with python script
In order to get the "from" field when retrieving the comments, you need to have manage_pages permission from your Facebook App that is linked to your Facebook Page. You will need to submit an App review for your Facebook App that usually takes 1-3 days to process. If you are lucky, it will probably take about 6-8 hours. 
Once it is approved, you can request the permission and get your application to go live.
Also use the Page Access token in your "access_token" field when invoking the API so that it will allow you to pull the "from" field, which contains the id and name of the user.
I am building a python script that is trying to stream a screen capture to my Facebook Page and to be able to retrieve all the comments from the Facebook Live stream real time so that I can do some processing in the middle of the stream.
The Facebook App was set up (in development mode) but when I tried to retrieve the comments from my live stream, I am only able to retrieve comments with their name and id ("from") that are made as the Facebook Page Admin, not comments that are made by other users. I need the user's id, user's name and their comments.
I understand that I need to get Facebook App to be live mode in order to retrieve all the comments with their details tagged to it. When I tried to get it, it tells me that I need to get the permission approved. I tried to fill in most of the stuff and try to get the two permission (manage_page for the comments and live video API for the streaming) but I was unable to because I left the platform empty.
Below is the message I got:

You do not have any platforms eligible for review. Please configure a platform on your Settings page.

The problem is when I tried to choose a platform that was shown in the list, python script does not fall in the list of platform. 
Does anyone know of a solution or a different way to achieve what I need to retrieve?