ref: 81c9ede53f6f9ebd67e7134e664c98e08b9fcca6
dir: /sys/src/cmd/python/Doc/lib/sqlite3/adapter_point_2.py/
import sqlite3 class Point(object): def __init__(self, x, y): self.x, self.y = x, y def adapt_point(point): return "%f;%f" % (point.x, point.y) sqlite3.register_adapter(Point, adapt_point) con = sqlite3.connect(":memory:") cur = con.cursor() p = Point(4.0, -3.2) cur.execute("select ?", (p,)) print cur.fetchone()[0]