c:\Python27>teste.py
Traceback (most recent call last):
File "C:\Python27\teste.py", line 13, in <module>
from sklearn.naive_bayes import multinomialNB
File "C:\Python27\lib\site-packages\sklearn\__init__.py", line 134, in <module>
from .base import clone
File "C:\Python27\lib\site-packages\sklearn\base.py", line 10, in <module>
import numpy as np
ImportError: No module named numpy
c:\Python27>