In order to select all records from space I do: tnt = tarantool.connect("localhost", 3322) sp = tnt.space('lalala') # lalala - space name n_list = sp.select(index=0, iterator=ITERATOR_ALL) and it works. At the same time, none of the following two lines works: n_list = sp.select() n_list = sp.select(index=0) results in: > tarantool.error.DatabaseError: (19, 'Invalid key part count in an exact match (expected 1, got 0)') According to dev team last two cases is a bug.