11. Data Persistence

https://docs.python.org/2/library/persistence.html

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 bsddb module also provides such disk-based string-to-string mappings based on hashing, and also supports B-Tree and record-based formats.

• 1. pickle — Python object serialization
• 2. cPickle — A faster pickle
• 3. copy_reg — Register pickle support functions
• 4. shelve — Python object persistence
• 5. marshal — Internal Python object serialization
• 6. anydbm — Generic access to DBM-style databases
• 7. whichdb — Guess which DBM module created a database
• 8. dbm — Simple “database” interface
• 9. gdbm — GNU’s reinterpretation of dbm
• 10. (deprecated) dbhash — DBM-style interface to the BSD database library
• 11. (deprecated) bsddb — Interface to Berkeley DB library
• 12. dumbdbm — Portable DBM implementation
• 13. sqlite3 — DB-API 2.0 interface for SQLite databases