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Re: [QF-Test] procedure returning None as result

  • Subject: Re: [QF-Test] procedure returning None as result
  • From: Michael Höber, QFS Support <support@?.de>
  • Date: Thu, 25 Apr 2013 09:53:58 +0200



it's essential to know the difference between $() and rc.lookup() regarding the expansion of variables:

'$' expressions are expanded before (!) the script is passed to the Jython interpreter. That means the text "$(var)" in the script is replaced by a verbatim copy of the value of the variable var. The method rc.lookup however returns the value of var during (!) the processing of the script.

For more details and examples please see:


Best regards,




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QFS Support - Michael Hoeber            

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From: qftest-list-bounces@?.de [mailto:qftest-list-bounces@?.de] On Behalf Of Chugunov, Alexey
Sent: Wednesday, April 24, 2013 11:47 AM
To: qftest-list@?.de
Cc: Mikhailov, Grigory; Lavrentyev, Andrey
Subject: [QF-Test] procedure returning None as result




I have this procedure which consists of jython SUT script and a return:

I get exception when I try to return None as the return value, as it unsets the “result” local var.

What is the recommended way to return “None” value from a procedure?

Some arbitrary string like “false”?


1.       Sut jython script (details skipped)

result = None       

rc.setLocal("result", result)


2.       Return $(result)


The return causes exception if result is set to None




Alexey Chugunov

Mera, GMT+4

Mayak 30104C phone: 4240 (redirected to mobile if no answer)