Error in register_composite python 3

Hello Joshua,

register_composite works for me.

In psql:

psql (9.0.3, server 9.0.5)
Type "help" for help.

piro=> create type foo as  (a integer, b integer);
CREATE TYPE
piro=> create table bar (b integer, c integer);
CREATE TABLE

In Python:

piro@bagheera:~/dev/psycopg2/build/lib.3.2$ python3.2
Python 3.2.2 (default, Sep  5 2011, 22:09:30) 
[GCC 4.6.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
>>> cnn = psycopg2.connect('')
>>> cur = cnn.cursor()
>>> import psycopg2.extras
>>> psycopg2.extras.register_composite('foo', cnn)
<psycopg2.extras.CompositeCaster object at 0x86d4f0c>
>>> cur.execute('select (10,20)::foo')
>>> cur.fetchone()
(foo(a=10, b=20),)
>>> psycopg2.extras.register_composite('bar', cur)
<psycopg2.extras.CompositeCaster object at 0x879b12c>
>>> cur.execute('select (30,40)::bar')
>>> cur.fetchone()
(bar(b=30, c=40),)

Please check you are doing everything right. If so, please post a reproducible test case.

Thank you.

Hello Daniele,

I am sorry. I have no time to provide you failing script. I am very busy.
I will send it here when I have some free time.

Best regards,
Joshua