I have successfully connected Teradata to python and the drivers are already installed 64 bit.
Download and install the drivers, and then connect.
Detailed Error Message:
>Download and install the drivers</a>, and then connect.</p>
[Microsoft][ODBC Driver Manager] Data source name not found and no default
driver specified Unable to connect to the server "TDIBDP01". Check
that the server is running and that you have access privileges to the requested
Can you test the driver using another tool besides Tableau to verify it works as expected. I would also double check the correct driver is installed for Teradata as listed on the Tableau drivers page.
Hope this helps!