[Paraview] Empty line printed from each core in coprocessorinitializewithpython() when doing in-situ

[Hong Yi]

In our in-situ run linking our simulation to ParaView Catalyst, I found an empty line was always printed from each core during Catalyst initialization (in coprocessorinitializewithpython() call). Although this is not a big deal, it becomes annoying when running on large number of cores. I traced the issue down some time ago and it appeared the empty line was printed from the statement "vtkPythonInterpreter::RunSimpleString(loadPythonModules.str().c_str());" in InitializePython() function in vtkCPPythonScriptPipeline.cxx. This empty line printout occurred in all ParaView versions we have tried including versions 3.98, 4.0.1, and 4.1.0. I am wondering whether anybody else has experienced this minor but sometimes annoying issue, and whether I can get some suggestions/ideas to possibly remove the empty line printout during Catalyst initialization.

Thanks,
Hong
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