I have updated superset from 3.0.0 to 4.1.1 in my docker container.
I am currently using a flask to authenticate to AzureAD so my requirements-local.txt looks like this post upgrade:

psycopg2-binary
flask-cors
flask_openid
prophet
pystan
pymssql
pymysql

The issue I am running into is when I try to use any of the MySQL data connections I get the error:

    MySQL Error
    No module named 'MySQLdb'

The same error presents itself in Sql Lab

When I go to edit the database connection the ‘Basic’ tab is blank (see attached)

Looking at the logs a similar message is present but with a call stack