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:
pickle
--- Python object serializationcopyreg
--- Registerpickle
support functionsshelve
--- Python object persistencemarshal
--- Internal Python object serializationdbm
--- Interfaces to Unix "databases"sqlite3
--- DB-API 2.0 interface for SQLite databases