There is no MySQLdb python module in the ZoneOS software platform. This is the source of the error: No module named MySQLdb.
The pymysql module should be used instead.
pymysql module can be installed in a python virtual environment as follows:
virtualenv --python=python3 ~/.virtualenv/mysql ~/.virtualenv/mysql/bin/pip install pymysql ~/.virtualenv/mysql/bin/python your-script.py