安装paramiko

sudo apt-get install python-dev libffi-dev
sudo pip install setuptools
sudo pip install bcrypt
sudo pip install pynacl

wget https://pypi.python.org/packages/f9/e5/99ebb176e47f150ac115ffeda5fedb6a3dbb3c00c74a59fd84ddf12f5857/ecdsa-0.13.tar.gz#md5=1f60eda9cb5c46722856db41a3ae6670
tar zxf ecdsa-0.13.tar.gz
cd ecdsa-0.13
sudo python setup.py install

wget https://pypi.python.org/packages/78/c5/7188f15a92413096c93053d5304718e1f6ba88b818357d05d19250ebff85/cryptography-2.1.4.tar.gz#md5=9f39d4d8f2b05f295fa0ff52475ec4f2
tar zxf cryptography-2.1.4.tar.gz
cd cryptography-2.1.4
sudo python setup.py install

wget https://github.com/paramiko/paramiko/archive/2.4.0.tar.gz
tar zxf 2.4.0.tar.gz
cd paramiko-2.4.0
sudo python setup.py install