class pickle.Unpickler(file, *, fix_imports=True, encoding="ASCII", errors="strict") This takes a binary file for reading a

class shelve.Shelf(dict, protocol=None, writeback=False, keyencoding='utf-8') A subclass of

description This read-only attribute provides the column names of the last query. To remain compatible with the Python DB API

executescript(sql_script) This is a nonstandard shortcut that creates a cursor object by calling the cursor() method

class pickle.Pickler(file, protocol=None, *, fix_imports=True) This takes a binary file for writing a pickle data stream.

dbm.open(file, flag='r', mode=0o666) Open the database file file and return a corresponding object.

gdbm.reorganize() If you have carried out a lot of deletions and would like to shrink the space used by the gdbm

dispatch_table A pickler object’s dispatch table is a registry of reduction functions of the kind which can be declared

execute(sql[, parameters]) Executes an SQL statement. The SQL statement may be parameterized (i. e. placeholders instead of

lastrowid This read-only attribute provides the rowid of the last modified row. It is only set if you issued an INSERT