import subprocess

path = ROOT_DIR
result = (subprocess.check_output(['tree', '--dirsfirst', path])
                    .decode("utf-8", "strict"))

file_list = result.split('\n')

root = file_list[0]
file_list = file_list[1:-3]

header_fmt = "<tr><th style='white-space:nowrap;'><code>{}</code></th><th></th></tr>"
file_fmt = """<tr>
  <td nowrap><code>{}</code></td>
  <td>description</td>
</tr>
"""* len(file_list)


formatted = """
<table>
<thead>
 {}
</thead>
<tbody>
 {}
</tbody>
</table>
""".format(
        header_fmt.format(root),
        file_fmt.format(*file_list)
    )

print(formatted)