marshal.version Indicates the format that the module uses. Version 0 is the historical format, version 1 shares interned strings

sqlite3.register_converter(typename, callable) Registers a callable to convert a bytestring from the database into a custom

pickle.loads(bytes_object, *, fix_imports=True, encoding="ASCII", errors="strict") Read a pickled object hierarchy from a

enable_load_extension(enabled) This routine allows/disallows the SQLite engine to load SQLite extensions from shared libraries

sqlite3.version The version number of this module, as a string. This is not the version of the SQLite library.

object.__reduce__() The interface is currently defined as follows. The __reduce__() method takes no argument and

object.__setstate__(state) Upon unpickling, if the class defines __setstate__(), it is called with the unpickled

dump(obj) Write a pickled representation of obj to the open file object given in the constructor.

pickle.load(file, *, fix_imports=True, encoding="ASCII", errors="strict") Read a pickled object representation from the open

dbm.whichdb(filename) This function attempts to guess which of the several simple database modules available — dbm.gnu