python import pickle import threading from pickledb import PickleDB lock = threading.Lock() db = PickleDB('data.db', False) def write_to_db(key, value): with lock: db.dset(key, value) def read_from_db(key): with lock: return db.dget(key) python import pickle import threading from pickledb import PickleDB local_data = threading.local() db = PickleDB('data.db', False) def write_to_db(key, value): if not hasattr(local_data, 'lock'): local_data.lock = threading.Lock() with local_data.lock: db.dset(key, value) def read_from_db(key): if not hasattr(local_data, 'lock'): local_data.lock = threading.Lock() with local_data.lock: return db.dget(key) python db = PickleDB('data.db', False, True)