How can I run Pyvmomi scripts based on vSphere alarms on the VCSA

I need to trigger a script through vsphere for specific events, say if an ESXi host crashed. Wanted to do it using pyvmomi, prefer not to poll the vcenter and rather have an alarm trigger a script.http://www.vcritical.com/2009/10/powershell-prevents-datastore-emergencies/

I looked at this as well https://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp#com.vmware.vsphere.dcadmin.doc_41/vc_client_help/working_with_alarms/c_running_commands_as_alarm_actions.html

But I wanted to know if we can achieve using pyvmomi?Thanks