paramiko安装报错ImportError: No module named cryptography.hazmat.backends

报错ImportError: No module named cryptography.hazmat.backends"/>

paramiko安装报错ImportError: No module named cryptography.hazmat.backends

命令行安装cryptography即可：

pip install  cryptography

若遇到SSLError: ('The read operation timed out',)等问题，重新执行上面的命令语句即可。

若出现Requirement already satisfied (use --upgrade to upgrade): cryptography in c:\python27\lib\site-packages问题，则执行如下语句即可：

pip install cryptography --upgrade