Finally, are these SQL databases? The best way of getting information is with SQL.SELECT * FROM NumberOfPets WHERE name IN (SELECT name FROM CatLovers) OR name IN (SELECT name FROM DogLovers) ORDER BY name;
A good way is to use SQL with JOINs instead of horrible nested selects. Although SQL is declarative, you shouldn't make the work of the query optimizer so hard.
Christian -- http://mail.python.org/mailman/listinfo/python-list
