12. Data Persistence¶
The modules described in this chapter support storing Python data in a
persistent form on disk.  The pickle and marshal modules can turn
many Python data types into a stream of bytes and then recreate the objects from
the bytes.  The various DBM-related modules support a family of hash-based file
formats that store a mapping of strings to other strings.
The list of modules described in this chapter is:
- 12.1. pickle— Python object serialization
- 12.2. copyreg— Registerpicklesupport functions
- 12.3. shelve— Python object persistence
- 12.4. marshal— Internal Python object serialization
- 12.5. dbm— Interfaces to Unix “databases”
- 12.6. sqlite3— DB-API 2.0 interface for SQLite databases
