The recommended connector library is teradatasqlalchemy.
The connection string for Teradata looks like this:
There's also an older connector named sqlalchemy-teradata that requires the installation of ODBC drivers. The Teradata ODBC Drivers are available here: https://downloads.teradata.com/download/connectivity/odbc-driver/linux
Here are the required environment variables:
We recommend using the first library because of the lack of requirement around ODBC drivers and because it's more regularly updated.