try to use bool/booleans with adapter/converter, but...

Greetings,

I am trying to store booleans in SQLite with pysqlite.
I made a table with this SQL:
    CREATE TABLE partner (
        idpartner   VARCHAR(35)                 NOT NULL,
        active       BOOLEAN,
        name       VARCHAR(256),
       PRIMARY KEY (idpartner)
       )
(checked: in SQLite field 'active' is indeed type BOOLEAN)

I need to use converters/adapters to use (from documentation). So:

    def adapter4bool(boolfrompython):
        return int(boolfrompython)

    def converter4bool(intfromdb):
        return bool(intfromdb)

    sqlite.register_adapter(bool,adapter4bool)
    sqlite.register_converter('BOOLEAN',converter4bool)

    conn = sqlite.connect(database, detect_types=sqlite.PARSE_DECLTYPES)

(and I subclass (sqlite.Connection with the 'factory' paramaeter, but I
don't think this matters)

But somehow this does not work.
I get 'Operation Error: no such column: True'
It seems that my adapter/convert-functions are never executed

What am I doing wrong?

Kind regard,
Henk-Jan Ebbers