from xml.etree.ElementTree import Element, SubElement
class T(str):
    def __eq__(self, other):
        root.clear()
        return True
root = Element('a')
SubElement(root, T('a')).text = str(object())
repr(root.findtext('a'))

Objects/object.c:766:19: runtime error: member access within misaligned address 0xdddddddddddddddd for type 'struct PyTypeObject', which requires 8 byte alignment
0xdddddddddddddddd: note: pointer points here
<memory cannot be printed>
Segmentation fault         (core dumped)