Data Persistence¶
The modules described in this chapter support storing Python data in apersistent form on disk. Thepickle andmarshal modules can turnmany Python data types into a stream of bytes and then recreate the objects fromthe bytes. The various DBM-related modules support a family of hash-based fileformats that store a mapping of strings to other strings.
The list of modules described in this chapter is:
pickle— Python object serializationcopyreg— Registerpicklesupport functionsshelve— Python object persistencemarshal— Internal Python object serializationdbm— Interfaces to Unix “databases”sqlite3— DB-API 2.0 interface for SQLite databases