qa/662: python output sometimes on stdout, not stderr
qa/662: python output sometimes on stdout, not stderr

wuliming/pcp,adfernandes/pcp,tjanez/pcp,wuliming/pcp,aeg-aeg/pcpfans,edwardt/pcp,edwardt/pcp,adfernandes/pcp,edwardt/pcp,tjanez/pcp,edwardt/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,wuliming/pcp,edwardt/pcp,prasincs/pcp,tjanez/pcp,prasincs/pcp,edwardt/pcp,aeg-aeg/pcpfans,prasincs/pcp,prasincs/pcp,aeg-aeg/pcpfans,prasincs/pcp,prasincs/pcp,adfernandes/pcp,edwardt/pcp,wuliming/pcp,adfernandes/pcp,aeg-aeg/pcpfans,prasincs/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,tjanez/pcp,aeg-aeg/pcpfans,tjanez/pcp,aeg-aeg/pcpfans,edwardt/pcp,wuliming/pcp,prasincs/pcp,tjanez/pcp,tjanez/pcp,wuliming/pcp,wuliming/pcp,tjanez/pcp,adfernandes/pcp