bpo-34941: Fix searching Element subclasses. (GH-9766)


Methods find(), findtext() and findall() of xml.etree.ElementTree.Element
were not able to find chldren which are instances of Element subclasses.
(cherry picked from commit b11c5667f99c4f0018e3394c4d07c519d835671a)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
3 files changed