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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