Py3o.template : How to format HTML variables from Odoo 13

Question

I'm working on .odt report using py3o.template in Odoo with LibreOffice Writer. In the report, I get variables from Odoo 13 :

These variables contain HTML code. So the result contains HTML tags :

Is it possible that the HTML code of the variable is interpreted in order to obtain a correct display ? With a Python function ?

Thank you !