monsoon.py script not working

[IgorGanapolsky]

Hello,
I followed your instructions in the README to run monsoon.py script. Here is the error I got:

Traceback (most recent call last):
File "monsoon.py", line 47, in
import gflags as flags # http://code.google.com/p/python-gflags/
ImportError: No module named gflags