How to use the reprozip.utils.unicode_ function in reprozip

def make_paths(cls, obj):
        if isinstance(obj, set):
            return set(cls.make_paths(e) for e in obj)
        elif isinstance(obj, list):
            return [cls.make_paths(e) for e in obj]
        elif isinstance(obj, AbstractPath):
            return obj
        elif isinstance(obj, (bytes, unicode_)):
            return Path(obj)
        else:
            assert False

(len(runs),))
    for r_name, r_argv, r_envp, r_workingdir, r_exitcode in executions:
        # Decodes command-line
        argv = r_argv.split('\0')
        if not argv[-1]:
            argv = argv[:-1]

        # Decodes environment
        envp = r_envp.split('\0')
        if not envp[-1]:
            envp = envp[:-1]
        environ = dict(v.split('=', 1) for v in envp)

        runs.append({'id': "run%d" % len(runs),
                     'binary': r_name, 'argv': argv,
                     'workingdir': unicode_(Path(r_workingdir)),
                     'architecture': platform.machine().lower(),
                     'distribution': distribution,
                     'hostname': platform.node(),
                     'system': [platform.system(), platform.release()],
                     'environ': environ,
                     'uid': os.getuid(),
                     'gid': os.getgid(),
                     'signal' if r_exitcode & 0x0100 else 'exitcode':
                         r_exitcode & 0xFF})

    cur.close()
    conn.close()

    if find_inputs_outputs:
        inputs_outputs = compile_inputs_outputs(runs, inputs, outputs)
    else:

''')
    for r_name, r_argv, r_envp, r_workingdir, r_exitcode in executions:
        # Decodes command-line
        argv = r_argv.split('\0')
        if not argv[-1]:
            argv = argv[:-1]

        # Decodes environment
        envp = r_envp.split('\0')
        if not envp[-1]:
            envp = envp[:-1]
        environ = dict(v.split('=', 1) for v in envp)

        runs.append({'id': "run%d" % len(runs),
                     'binary': r_name, 'argv': argv,
                     'workingdir': unicode_(Path(r_workingdir)),
                     'architecture': platform.machine().lower(),
                     'distribution': distribution,
                     'hostname': platform.node(),
                     'system': [platform.system(), platform.release()],
                     'environ': environ,
                     'uid': os.getuid(),
                     'gid': os.getgid(),
                     'signal' if r_exitcode & 0x0100 else 'exitcode':
                         r_exitcode & 0xFF})

    cur.close()
    conn.close()

    if find_inputs_outputs:
        inputs_outputs = compile_inputs_outputs(runs, inputs, outputs)
    else:

    conn.text_factory = lambda x: unicode_(x, 'utf-8', 'replace')

inputs = [[path for path in lst if path in files]
              for lst in inputs]

    # Displays a warning for READ_THEN_WRITTEN files
    read_then_written_files = [
        fi
        for fi in itervalues(files)
        if fi.what == TracedFile.READ_THEN_WRITTEN and
        not any(fi.path.lies_under(m) for m in magic_dirs)]
    if read_then_written_files:
        logger.warning(
            "Some files were read and then written. We will only pack the "
            "final version of the file; reproducible experiments shouldn't "
            "change their input files")
        logger.info("Paths:\n%s",
                    ", ".join(unicode_(fi.path)
                              for fi in read_then_written_files))

    files = set(
        fi
        for fi in itervalues(files)
        if fi.what != TracedFile.WRITTEN and not any(fi.path.lies_under(m)
                                                     for m in magic_dirs))
    return files, inputs, outputs

inputs = [[path for path in lst if path in files]
              for lst in inputs]

    # Displays a warning for READ_THEN_WRITTEN files
    read_then_written_files = [
        fi
        for fi in itervalues(files)
        if fi.what == TracedFile.READ_THEN_WRITTEN and
        not any(fi.path.lies_under(m) for m in magic_dirs)]
    if read_then_written_files:
        logging.warning(
            "Some files were read and then written. We will only pack the "
            "final version of the file; reproducible experiments shouldn't "
            "change their input files")
        logging.info("Paths:\n%s",
                     ", ".join(unicode_(fi.path)
                               for fi in read_then_written_files))

    files = set(
        fi
        for fi in itervalues(files)
        if fi.what != TracedFile.WRITTEN and not any(fi.path.lies_under(m)
                                                     for m in magic_dirs))
    return files, inputs, outputs