<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/brython@3.9.5/brython.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/brython@3.9.5/brython_stdlib.js"></script>
<body onload="brython()">
<script type="text/python">
from browser import document, html
document <= 'seja feliz por favor'
<script type="text/javascript">
brython(1);
</script>