Hi everybody:
could anybody help me why appear this error message when I try to execute a little scripts?, this's the message:

Traceback (most recent call last):
File "/home/previoz/previozono/bin/pdw.to.validator", line 8, in ?
from validator import pdw, stations
File "/home/previoz/previozono/validator/pdw/__init__.py", line 1, in ?
from reader import reader
File "/home/previoz/previozono/validator/pdw/reader.py", line 3, in ?
from mx.DateTime.Parser import DateTimeFromString
ImportError: No module named mx.DateTime.Parser

Traceback (most recent call last):
File "/home/previoz/previozono/bin/validator", line 7, in ?
import validator.mdi
File "/home/previoz/previozono/validator/mdi.py", line 5, in ?
from qt import *
ImportError: /usr/lib/python2.3/site-packages/qt.so: undefined symbol: _ZN2Qt10bu

Thanks in advance.