import sqlite3 class CountCursorsConnection(sqlite3.Connection):    def __init__(self, *args, **kwargs):        sqlite3.Connection.__init__(self, *args, **kwargs)        self.numcursors = 0     def cursor(self, *args, **kwargs):        self.numcursors += 1        return sqlite3.Connection.cursor(self, *args, **kwargs) con = sqlite3.connect(":memory:", factory=CountCursorsConnection)cur1 = con.cursor()cur2 = con.cursor()print con.numcursors