cliff is delivered with output formatters for show commands. ShowOne adds a command line switch to let the user specify the formatter they want, so you don’t have to do any extra work in your application.
The html formatter uses tablib to produce HTML output as a table.
(.venv)$ cliffdemo file -f html setup.py
<table>
<thead>
<tr><th>Field</th>
<th>Value</th></tr>
</thead>
<tr><td>Name</td>
<td>setup.py</td></tr>
<tr><td>Size</td>
<td>6373</td></tr>
<tr><td>UID</td>
<td>527</td></tr>
<tr><td>GID</td>
<td>501</td></tr>
<tr><td>Modified Time</td>
<td>1336353173.0</td></tr>
</table>