NETCONF to fetch the router’s hostname

NETCONF-fetch-router-hostname.py

# import the ncclient library

from ncclient import manager

import sys

import xml.dom.minidom

# use the IP address or hostname of your CSR1000V device

HOST = 'ios-xe-mgmt-latest.cisco.com'

# use the NETCONF port for your IOS-XE device

PORT = 10000

# use the user credentials for your IOS-XE device

USER = 'developer'

PASS = 'C1sco12345'

with manager.connect(host=HOST, port=PORT, username=USER,

password=PASS, hostkey_verify=False,

device_params={'name': 'default'},

allow_agent=False, look_for_keys=False) as m:

hostname_filter = '''

<filter>

<native xmlns="http://cisco.com/ns/yang/Cisco-IOS-XE-native">

<hostname></hostname>

</native>

</filter>

'''

result = m.get_config('running', hostname_filter)

xml_doc = xml.dom.minidom.parseString(result.xml)

hostname = xml_doc.getElementsByTagName("hostname")

print("Hostname: " + hostname[0].firstChild.nodeValue)