python - Sqlalchemy detect change in table -

in thread check whenever particular value in database table changes. this:

def my_background_thread(): while true:     check_for_changes_to_database     if change:        do_something()

i'm using mysql , sqlalchemy. sqlalchemy provide way this?

do_something() can registered listener of sqlalchemy's 'set' event 'changes' in database.

eg.

listen('changes', 'set', do_something)

Macro