I have issue in import paramiko

I am getting below error whenever i m trying to import paramiko.
I am using python 2.7.3 version
>>> import paramiko
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/opt/Python/lib/python2.7/site-packages/paramiko/__init__.py", line 69, in <module>
from transport import randpool, SecurityOptions, Transport
File "/opt/Python/lib/python2.7/site-packages/paramiko/transport.py", line 32, in <module>
from paramiko import util
File "/opt/Python/lib/python2.7/site-packages/paramiko/util.py", line 32, in <module>
from paramiko.common import *
File "/opt/Python/lib/python2.7/site-packages/paramiko/common.py", line 98, in <module>
from rng import StrongLockingRandomPool
File "/opt/Python/lib/python2.7/site-packages/paramiko/rng.py", line 23, in <module>
from Crypto.Util.randpool import RandomPool as _RandomPool
ImportError: No module named Crypto.Util.randpool

These files load for me.

For instance, `ls -l' shows
-rw-r--r-- 1 root root 10560 Jun 1 2012 /usr/lib/python2.7/dist-packages/Crypto/Util/strxor.so