New port group in Vcenter

from pyVim.connect import SmartConnect, SmartConnectNoSSL, Disconnect
from pyVmomi import vim
import re, ssl

vc = 'Vcenter name'
username = 'username'
password = 'password'
pg = input('New network name: ')  # Port Group name in Vcenter
vlan_id = input('New vlan ID: ')  # Vlan ID
esx_host = ['esxi1', 'esxi2']  # List of ESXi hosts
vswitch = 'vSwitch0'


# This function get esxi host object from vmware API
def GetVMHosts(content, regex_esxi=None):
    host_view = content.viewManager.CreateContainerView(content.rootFolder,
                                                        [vim.HostSystem],
                                                        True)
    obj = [host for host in host_view.view]
    match_obj = []
    if regex_esxi:
        for esxi in obj:
            if re.findall(r'%s.*' % regex_esxi, esxi.name):
                match_obj.append(esxi)
        match_obj_name = [match_esxi.name for match_esxi in match_obj]
        print("Matched ESXi hosts: %s" % match_obj_name)
        host_view.Destroy()
        return match_obj
    else:
        host_view.Destroy()
        return obj


# This function add port group to single ESXI host
def AddHostsPortgroup(hosts, vswitchName, portgroupName, vlanId):
    for host in hosts:
        AddHostPortgroup(host, vswitchName, portgroupName, vlanId)


# This function add port group to all ESXI hosts
def AddHostPortgroup(host, vswitchName, portgroupName, vlanId):
    portgroup_spec = vim.host.PortGroup.Specification()
    portgroup_spec.vswitchName = vswitchName
    portgroup_spec.name = portgroupName
    portgroup_spec.vlanId = int(vlanId)
    network_policy = vim.host.NetworkPolicy()
    network_policy.security = vim.host.NetworkPolicy.SecurityPolicy()
    network_policy.security.allowPromiscuous = True
    network_policy.security.macChanges = False
    network_policy.security.forgedTransmits = False
    portgroup_spec.policy = network_policy

    host.configManager.networkSystem.AddPortGroup(portgroup_spec)


# This function making connection to Vcenter and starting another function for new port group creation
def main():
    s = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
    s.verify_mode = ssl.CERT_NONE

    serviceInstance = SmartConnect(host=vc,
                                   user=username,
                                   pwd=password,
                                   port=443,
                                   sslContext=s)
    print('Connected')

    content = serviceInstance.RetrieveContent()

    for host in esx_host:
        print(host)
        hosts = GetVMHosts(content, host)
        AddHostsPortgroup(hosts, vswitch, pg, vlan_id)
        print('PortGroup {} succeffully creatde!'.format(pg))


if __name__ == '__main__':
    main()