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Absolutizing hrefs in HTML
from urllib.parse import urljoin
from xml.etree import ElementTree as ET
def absolute_hrefs(html, baseurl):
t = html5lib.parseFragment(html, treebuilder = "etree", namespaceHTMLElements = False)
for a in t.findall(".//*[@href]"):
linkclass = a.attrib.get("class", "")
href = urljoin(baseurl, a.attrib.get("href"))
a.attrib['href'] = href
html = ET.tostring(t, method="html", encoding="unicode")
return html
