Python3-jdbc connection

trying to use JDBC with Vertica through python script , right now we can read the data normally if it was on only one host, right now I'm trying to make group by function in two separated hosts, but both of them have the same username, and password and same field and table, but different values, is there any way to connect with 2 URL hosts together , not node backup i want to run the group by function on both of them