Strange exceptions in MySQLdb

[Hector Villafuerte]

Hi,
I have been using Python 2.3.4 with MySQL 4.0.16-max-nt (through
MySQLdb) for months. Today this messages showed up:

Exception exceptions.AttributeError: "'NoneType' object has no
attribute 'close'" in <bound method Cursor.__del__ of
<MySQLdb.cursors.Cursor instance at 0x0099C148>> ignored
Exception exceptions.AttributeError: "'NoneType' object has no
attribute 'close'" in <bound method Cursor.__del__ of
<MySQLdb.cursors.Cursor instance at 0x009AD080>> ignored
Exception exceptions.AttributeError: "'NoneType' object has no
attribute 'close'" in <bound method Cursor.__del__ of
<MySQLdb.cursors.Cursor instance at 0x009ABF58>> ignored

My scripts work just fine... everything is ok besides this messages
that mean nothing to me :(
Any suggestions? Thanks in advance!
Hector