1import sqlite3
2
3class Point:
4    def __init__(self, x, y):
5        self.x, self.y = x, y
6
7    def __conform__(self, protocol):
8        if protocol is sqlite3.PrepareProtocol:
9            return "%f;%f" % (self.x, self.y)
10
11con = sqlite3.connect(":memory:")
12cur = con.cursor()
13
14p = Point(4.0, -3.2)
15cur.execute("select ?", (p,))
16print(cur.fetchone()[0])
17
18con.close()
19