https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/programmability/guide/b_Cisco_Nexus_9000_Series_NX-OS_Programmability_Guide_7x/Python_API.html

• example

from cli import *
import json
cli('configure terminal ; interface loopback 5 ; no shut')

intflist=json.loads(clid('show interface brief'))
i=0
while i < len(intflist['TABLE_interface']['ROW_interface']):
   intf=intflist['TABLE_interface']['ROW_interface'][i]
   i=i+1
   if intf['state'] == 'up':
     print intf['interface']