How to use the pyzabbix.ZabbixAPI function in pyzabbix

def test_host_get(self):
        httpretty.register_uri(
            httpretty.POST,
            "http://example.com/api_jsonrpc.php",
            body=json.dumps({
                "jsonrpc": "2.0",
                "result": [{"hostid": 1234}],
                "id": 0
            }),
        )

        zapi = ZabbixAPI('http://example.com')
        zapi.auth = "123"
        result = zapi.host.get()

        # Check request
        self.assertEqual(
            json.loads(httpretty.last_request().body.decode('utf-8')),
            {
                'jsonrpc': '2.0',
                'method': 'host.get',
                'params': {},
                'auth': '123',
                'id': 0,
            }
        )

        # Check response

if args.no_verify:
 noverify = args.no_verify

# test for needed params
if not username:
 sys.exit("Error: API User not set")

if not password:
 sys.exit("Error: API Password not set")
 
if not api:
 sys.exit("Error: API URL is not set")

# Setup Zabbix API connection
zapi = ZabbixAPI(api)

if noverify is True:
 zapi.session.verify = False

# Login to the Zabbix API
zapi.login(username, password)

##################################
# Start actual API logic
##################################

if args.all_hosts:
       # Make a list of all hosts
       hlookup = zapi.host.get()
else:
  if args.hostgroups:

if args.no_verify:
 noverify = args.no_verify

# test for needed params
if not username:
 sys.exit("Error: API User not set")

if not password:
 sys.exit("Error: API Password not set")
 
if not api:
 sys.exit("Error: API URL is not set")

# Setup Zabbix API connection
zapi = ZabbixAPI(api)

if noverify is True:
 zapi.session.verify = False

# Login to the Zabbix API
zapi.login(username, password)

##################################
# Start actual API logic
##################################


if not args.triggerid:
   sys.exit("Error: Triggerid not found")

if args.enable:

if args.no_verify:
 noverify = args.no_verify

# test for needed params
if not username:
 sys.exit("Error: API User not set")

if not password:
 sys.exit("Error: API Password not set")
 
if not api:
 sys.exit("Error: API URL is not set")

# Setup Zabbix API connection
zapi = ZabbixAPI(api)

if noverify is True:
 zapi.session.verify = False

# Login to the Zabbix API
zapi.login(username, password)

##################################
# Start actual API logic
##################################

# Find the template we are looking for
tmpl_name = args.template
template = zapi.template.get(output="extend", filter={"host": tmpl_name})
templateid = template[0]["templateid"]

# test for needed params
if not username:
 print("Error: API User not set")
 exit()

if not password:
 print("Error: API Password not set")
 exit()
 
if not api:
 print("Error: API URL is not set")
 exit()

# Setup Zabbix API connection
zapi = ZabbixAPI(api)

if noverify is True:
 zapi.session.verify = False

# Login to the Zabbix API
zapi.login(username, password)

##################################
# Start actual API logic
##################################

# set the hostname we are looking for
host_name = args.hostname

# Find specified host from API
hosts = zapi.host.get(output="extend", filter={"host": host_name})

# OTHER VARIABLES
args = parser.parse_args()
fake = args.fake
LOGFILE = '/tmp/zbx_discovery-manager.log'
logger = LogPrint(echo=args.verbose, logfile=LOGFILE, loglevel=args.loglevel.upper())
loglevels = {
	'CRITICAL'	: 50,
	'ERROR' 	: 40,
	'WARNING'	: 30,
	'INFO'		: 20,
	'DEBUG'		: 10
}

try:
	zapi = ZabbixAPI(args.url,timeout=TIMEOUT)
	zapi.login(args.user,args.password)
except Exception, e:
	logger.error('Unable to login: {0}'.format(e))
	exit(1)

# CUSTOM FUNCTIONS
def discovery_checks():
	"""
	retornar o formato json com os discovery checks
	essa entrada eh manual
	"""
	dchecks = [
		{ 'uniq': '1', 'snmp_community': '{$SNMP_COMMUNITY}', 'type': '11', 'ports': '161', 'key_': 'sysName.0' },
		{ 'uniq': '0', 'snmp_community': '{$SNMP_COMMUNITY}', 'type': '11', 'ports': '161', 'key_': 'sysDescr.0' },
		{ 'uniq': '0', 'snmp_community': '{$SNMP_COMMUNITY}', 'type': '11', 'ports': '161', 'key_': 'sysContact.0' },
		{ 'uniq': '0', 'snmp_community': '{$SNMP_COMMUNITY}', 'type': '11', 'ports': '161', 'key_': 'MIB-Dell-10892::chassisModelName.1' },

Return ZabbixAPI object
    """
    # pyzabbix library, with user\password in login method. It's GOOD library
    logging.debug("Try connect to Zabbix by pyzabbix...")
    try:
        zbx_pyzabbix = ZabbixAPI(zbx_url)
        zbx_pyzabbix.session.verify = False
        zbx_pyzabbix.login(zbx_user, zbx_password)
        return zbx_pyzabbix
    except Exception as e:
        logging.exception(e)

    # py-zabbix library, with user\password in ZabbixAPI
    logging.debug("Try connect to Zabbix by py-zabbix...")
    try:
        zbx_py_zabbix = ZabbixAPI(zbx_url, user=zbx_user, password=zbx_password)
        zbx_py_zabbix.session.verify = False
        return zbx_py_zabbix
    except Exception as e:
        logging.exception(e)
    # choose good API

    raise Exception("Some error in pyzabbix or py_zabbix module, see logs")

def main(args):

    zapi = pyzabbix.ZabbixAPI('http://%s' % args.zabbix_server)
    zapi.login(args.zabbix_username, args.zabbix_password)

    for host in args.host:
        process(zapi, host)

'''
Created on 01.10.2010

@author: gescheit
'''
from pyzabbix import ZabbixAPI

server="127.0.0.1"
username="api"
password="apipass"

zapi = ZabbixAPI(server=server, path="", log_level=6)
zapi.login(username, password)

host_name="test_host"

hostid=zapi.host.get(filter={"host":host_name})[0]["hostid"]
print hostid

zapi.item.create(hostid=hostid,
                 description='Used disk space on $1 in %' ,
                 key_='vfs.fs.size[/,pused]',
                 )