Thanks for the great work on pgadmin4. But after updating to 4.4 I could login but trying to connect to my database I got an internal server error “'psycopg2.extensions.Column' object has no attribute '_asdict'” -- sometimes the error message was displayed via the browser interface, sometimes nothing happened on the browser interface but the error was in the Apache logs.
This only got resolved after downgrading psycopg2 to 2.7.7.