ZODB

ZODB (Zope Object Database) is a Python native, object-oriented database designed for transparently and persistently storing Python objects without the need for object-relational mapping (ORM). It provides ACID transactions, multi-version concurrency control (MVCC), and a pluggable storage framework (e.g., FileStorage, ZEO for client-server, RelStorage for RDBMS backends). ZODB is actively maintained, with version 6.3 being the latest, and receives regular updates to support new Python versions and address bugs.