tostring(RestrictedElement('X')) produces funky output

[ecederstrand]

>>> from defusedxml.lxml import RestrictedElement, tostring
>>> from lxml.etree import Element
>>> tostring(Element('X'))
b'<X/>'
>>> tostring(RestrictedElement('X'))
b'<RestrictedElement>X</RestrictedElement>'

I was expecting it would serialise to b'<X/>'.

[tiran]

defusedxml.lxml is no longer needed and supported. Nowadays libxml2 has builtin limitation for entity expansion.