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

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

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

pickle.dumps(obj, protocol=None, *, fix_imports=True) Return the pickled representation of the object as a

dumbdbm.close() Close the dumbdbm database.

fetchmany(size=cursor.arraysize) Fetches the next set of rows of a query result, returning a list. An empty list is returned

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

Shelf.sync() Write back all entries in the cache if the shelf was opened with writeback set to

persistent_id(obj) Do nothing by default. This exists so a subclass can override it. If

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