code: def iter_links(self):
          # type: () -> Iterable[Link]
          
          document = html5lib.parse(
              self.content,
              transport_encoding=_get_encoding_from_headers(self.headers),
              namespaceHTMLElements=False,
          )
          base_url = _determine_base_url(document, self.url)
          for anchor in document.findall(".//a"):
              if anchor.get("href"):
                  href = anchor.get("href")
                  url = _clean_link(urllib_parse.urljoin(base_url, href))
                  pyrequire = anchor.get('data-requires-python')
                  pyrequire = unescape(pyrequire) if pyrequire else None
                  yield Link(url, self.url, requires_python=pyrequire)
docs: Yields all links in the page