1 import sqlite3 2 3 class IterChars: 4 def __init__(self): 5 self.count = ord('a') 6 7 def __iter__(self): 8 return self 9 10 def __next__(self): 11 if self.count > ord('z'): 12 raise StopIteration 13 self.count += 1 14 return (chr(self.count - 1),) # this is a 1-tuple 15 16 con = sqlite3.connect(":memory:") 17 cur = con.cursor() 18 cur.execute("create table characters(c)") 19 20 theIter = IterChars() 21 cur.executemany("insert into characters(c) values (?)", theIter) 22 23 cur.execute("select c from characters") 24 print(cur.fetchall()) 25
