Render an HTML string in the default web browser

render_html.py

import webbrowser
from tempfile import NamedTemporaryFile

def view_html(html: bytes, **kwargs) -> bool:
    """
    Open HTML input string as a webpage in default browser
    @return - True if page opened successfully, False otherwise
    """
    with NamedTemporaryFile(suffix='.html', delete=False, **kwargs) as f:
        f.write(html)
        return webbrowser.open(f.name)

Note: In a Jupyter Notebook, HTML can be displayed inline directly using IPython.display:

from IPython.display import display, HTML
display(HTML(an_html_string))