Python 3 and SSH Tunnel

[D. Xenakis]

What about the security though? 

To be specific, i need to create an application (python 3.3 strictly) where users will save/load their settings online to a remote hosted database. I do not wish to change the database from listening to any other thing than localhost for security reasons, so i assume the best solution for me would be to make the program create some ssh tunnels before the saving/loading happens.

But would this policy make my database (or the rest of the databases that im running on that machine) unsecure? Is there any workaround this?

How would you do that online saving/loading?