Load Plans Don't Honor Default Variable Values

Question

The following code uses Package defaults for Global Variable Values. When run as the first step in a Package or as the Scenario of a Package, it works.
When run as the first step in Load Plan the code fails. Load Plans apparently don't honor Variabel default values.
import socket
outsocket = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
ContextName = '<%=snpRef.getSession("CONTEXT_NAME")%>'
if not ContextName: ContextName = 'No Context'
SessionName = '<%=snpRef.getSession("SESS_NAME")%>'
if not SessionName: SessionName = 'No Session'
Message = '<%=snpRef.getOption("Message")%>'
if not Message: Message = 'No Message'
outmessage = ' '.join([
     '#PLATFORM'
    ,ContextName
    ,SessionName
    ,Message
ListenPort = #LISTEN_PORT
if not ListenPort: raise RuntimeError, 'no listen port'
ListenHost = '#LISTEN_HOST'
if not ListenHost: raise RuntimeError, 'no listen host'
outsocket.sendto(outmessage,(ListenHost,ListenPort))
outsocket.close()
[code]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

Answer 1

I know the documentation says Load Plans don't honor Package defaults, but still. . .