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.
| pickle |
|
Convert Python objects to streams of bytes and back. |
| cPickle |
|
Faster version of pickle, but not subclassable. |
| copy_reg |
|
Register pickle support functions. |
| shelve |
|
Python object persistence. |
| marshal |
|
Convert Python objects to streams of bytes and back
(with different constraints). |
| anydbm |
|
Generic interface to DBM-style database modules. |
| whichdb |
|
Guess which DBM-style module created a given database. |
| dbm |
|
The standard ``database'' interface, based on ndbm. |
| gdbm |
|
GNU's reinterpretation of dbm. |
| dbhash |
|
DBM-style interface to the BSD database library. |
| bsddb |
|
Interface to Berkeley DB database library |
| dumbdbm |
|
Portable implementation of the simple DBM interface. |
| sqlite3 |
|
A DB-API 2.0 implementation using SQLite 3.x. |
