BeautifulSoup, but for CSS?

Question

BeautifulSoup parses HTML and offers various ways to manipulate and search within HTML. Is there something similar for CSS?

Specifically, I'd like to know if a given HTML text is rendered as bold. Either it has an ancestor that is the <strong> or the <bold> tag (which can be done with BeautifulSoup), or it has an ancestor (or itself) that has CSS attributes with font-weight: bold.

Is this possible without resulting to writing my own library?

Answer 1

Have a look to CSSParser class of cssutils package.