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etree.XML raises TypeError on valid XML #3430
Description
etree.XML does not look like it is working.
>>>>> import xml.etree.ElementTree as etree
>>>>> etree.XML("<root></root>")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/.../RustPython/vm/pylib-crate/Lib/xml/etree/ElementTree.py", line 1319, in XML
parser = XMLParser(target=TreeBuilder())
File "/home/.../RustPython/vm/pylib-crate/Lib/xml/etree/ElementTree.py", line 1508, in __init__
parser = expat.ParserCreate(encoding, "}")
TypeError: Expected type 'str', not 'NoneType'
This code runs fine on CPython and PyPy.
Activity
DimitrisJim commentedon Nov 8, 2021
Yup,
expat.rsis still quite bare-bones (the args, even if parsed correctly, aren't currently used).youknowone commentedon Oct 6, 2026
The originally reported problem no longer reproduces on current main. Closing per the recheck in #8982.
— commented by Grok 4.6