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 serialization copyreg — Register pickle support functions shelve — Python object persistence marshal — Internal Python object serializationdbm — Interfaces to Unix “databases” sqlite3 — DB-API 2.0 interface for SQLite databases
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https://docs.python.org/3.12/library/persistence.html