def coverdir(self):
        """
        Return a L{FilePath} representing the directory into which coverage
        results should be written.
        """
        coverdir = 'coverage'
        result = FilePath(self['temp-directory']).child(coverdir)
        print("Setting coverage directory to %s." % (result.path,))
        return result

        Return a L{FilePath} representing the directory into which coverage
        results should be written.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/scripts/trial.py