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Title: gh-144846: make Element tag positional-only by NekoAsakura · Pull Request #144876 · python/cpython · GitHub

Open Graph Title: gh-144846: make Element tag positional-only by NekoAsakura · Pull Request #144876 · python/cpython

X Title: gh-144846: make Element tag positional-only by NekoAsakura · Pull Request #144876 · python/cpython

Description: Make tag positional-only in xml.etree.ElementTree.Element.__init__ to match the C accelerator. The C implementation (_elementtree.Element) uses PyArg_ParseTuple, which inherently makes tag positional-only. The Python fallback used def __init__(self, tag, attrib={}, **extra): which allowed tag as a keyword argument. This inconsistency meant Element(tag="foo") worked only when the C accelerator was unavailable. Same pattern as gh-144270 (SubElement). Fix: add / after tag → def __init__(self, tag, /, attrib={}, **extra): Changes Lib/xml/etree/ElementTree.py: add / to Element.__init__ signature Lib/test/test_xml_etree.py: add test_element_init covering positional-only enforcement, keyword attrib, and kwargs-as-XML-attributes parity Doc/library/xml.etree.elementtree.rst: update signature and add versionchanged:: 3.15 Issue: gh-144846 📚 Documentation preview 📚: https://cpython-previews--144876.org.readthedocs.build/

Open Graph Description: Make tag positional-only in xml.etree.ElementTree.Element.__init__ to match the C accelerator. The C implementation (_elementtree.Element) uses PyArg_ParseTuple, which inherently makes tag position...

X Description: Make tag positional-only in xml.etree.ElementTree.Element.__init__ to match the C accelerator. The C implementation (_elementtree.Element) uses PyArg_ParseTuple, which inherently makes tag position...

Opengraph URL: https://github.com/python/cpython/pull/144876

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