File: //usr/local/bin/zabbix/zbxproxyfind.py
#!/usr/bin/env python3
import sys
from zabbix.api import ZabbixAPI
try:
zapi = ZabbixAPI(url=sys.argv[1], user=sys.argv[2], password=sys.argv[3])
thishost_proxy_id = [host for host in zapi.host.get() if sys.argv[4] in host['host']][0]['proxy_hostid']
print([proxy for proxy in zapi.proxy.get() if thishost_proxy_id in proxy['proxyid']][0]['proxy_address'])
except IndexError:
print("""zbxproxyfind.py: invalid options
zbxproxyfind.py [url] [user] [password] [host]""")