def _reportImportError(self, module, e):
        """
        Helper method to report an import error with a profile module. This
        has to be explicit because some of these modules are removed by
        distributions due to them being non-free.
        """
        s = "Failed to import module %s: %s" % (module, e)
        s += """
This is most likely caused by your operating system not including
the module due to it being non-free. Either do not use the option
--profile, or install the module; your operating system vendor
may provide it in a separate package.
"""
        raise SystemExit(s)

        Helper method to report an import error with a profile module. This
        has to be explicit because some of these modules are removed by
        distributions due to them being non-free.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/application/app.py