@staticmethod
    def _filepaths_in_dir(dirpath):
        filepaths = []
        for root, dirnames, filenames in os.walk(dirpath):
            for filename in filenames:
                filepath = os.path.join(root, filename)
                filepaths.append(filepath)
        return sorted(filepaths)
Return a sorted list of relative paths, one for each of the files
dataset/ETHPy150Open python-openxml/opc-diag/features/steps/step_data.py/_Manifest._filepaths_in_dir