command line usage with args -o not working

[shimwell]

When running /usr/bin/python /usr/bin/geomPipeline.py manifest.json -o ppp.brep

I think I am using the geomPipeline correctly according to the --help instructurings I get a RuntimeError

[qingfengxia]

confirmed, further I will add a command line test this -o option

[qingfengxia]

This should be fixed, I added "nargs =1" wrongly so args.outputFile is a list instead of string.