Use os.remove/os.mkdirs instead of bash rm/mkdir

                diff_opts  = ""

        for proc in preproc:

            proc = replace_paths(proc, testv_path, ref_path, cut_path)

            subprocess.run(proc.split())

            if 'rm' in proc:

                path = proc.split()[-1]

                if os.path.exists(path): os.remove(path)

            if 'mkdir' in proc:

                path = proc.split()[-1]

                os.mkdirs(path)

@pytest.mark.parametrize("test_tag", list(test_dict.keys()))

def test_26252(test_tag, encoder_path, decoder_path, renderer_path):