+ result = set((tuple(row) for row in cur))
+ assert len(result) == cur.rowcount, "Word table has duplicates."
+ return result
+
+
+ def get_country(self):
+ with self.conn.cursor() as cur:
+ cur.execute("""SELECT country_code, word_token
+ FROM word WHERE country_code is not null""")
+ result = set((tuple(row) for row in cur))
+ assert len(result) == cur.rowcount, "Word table has duplicates."
+ return result