1 import sqlite3 2 3 class Point: 4 def __init__(self, x, y): 5 self.x, self.y = x, y 6 7 def adapt_point(point): 8 return "%f;%f" % (point.x, point.y) 9 10 sqlite3.register_adapter(Point, adapt_point) 11 12 con = sqlite3.connect(":memory:") 13 cur = con.cursor() 14 15 p = Point(4.0, -3.2) 16 cur.execute("select ?", (p,)) 17 print(cur.fetchone()[0]) 18