I want to simultaneously connect to two databases in python for a query that depends on the two databases in oracle sql developer

The example is following :

SELECT t1.id_client, t1.sales, t2.cost
FROM table_1@database_1 t1
JOIN table_2@database_2 t2
ON t1.id_client = t2.id_client

table 1 is from database_1
table 2 is from database_2

thanks!

I tried using cx_Oracle in python but it didnt work, it only connects to one of the databases.