报错：
>>> import paramiko
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Data/apps/ENV3/lib/python3.6/site-packages/paramiko/__init__.py", line 22, in <module>
from paramiko.transport import SecurityOptions, Transport
File "/Data/apps/ENV3/lib/python3.6/site-packages/paramiko/transport.py", line 38, in <module>
from paramiko.auth_handler import AuthHandler
File "/Data/apps/ENV3/lib/python3.6/site-packages/paramiko/auth_handler.py", line 72, in <module>
from paramiko.ssh_gss import GSSAuth, GSS_EXCEPTIONS
File "/Data/apps/ENV3/lib/python3.6/site-packages/paramiko/ssh_gss.py", line 55, in <module>
GSS_EXCEPTIONS = (gssapi.GSSException,)
AttributeError: module 'gssapi' has no attribute 'GSSException'
解决：
各种尝试，结果是paramiko模块2.4版本无法识别gssapi，降为paramiko==2.3.1 正常