[SQLObject] UTF8 problem while SQLObject vs MySQL

[ro <ros...@gm...>]

hi all

While I use sqlobject to commit UTF8 string to MySQL, this error caused

 File "d:\python24\lib\site-packages\SQLObject-0.7.5-py2.4.egg\sqlobject\mysql\mysqlconnection.py",
line 77, in _executeRetry
  myquery = unicode(query, self.encoding)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe6 in position
111: ordinal not in range(128)

Is there any option could enable utf8?

-- 
with kind regards