Calling ElementTree.write on an ElementTree instance where ElementTree._root is the wrong type causes possible data loss · Issue #135640 · python/cpython · GitHub | Latest TMZ Celebrity News & Gossip | Watch TMZ Live
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Calling ElementTree.write on an ElementTree instance where ElementTree._root is the wrong type causes possible data loss #135640

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Calling ElementTree.write on an ElementTree instance where ElementTree._root is the wrong type causes possible data loss#135640
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stdlibPython modules in the Lib dirtopic-XMLtype-bugAn unexpected behavior, bug, or error
@abstractedfox

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@abstractedfox
abstractedfox
opened on Jun 17, 2025

Bug report

Bug description:

Example:

tree = xml.etree.ElementTree.ElementTree(element = "") # element should be an ElementTree.Element object or None
tree.write("file.xml") # This appropriately causes a traceback, but blanks file.xml if it exists

PR coming with a fix!

CPython versions tested on:

CPython main branch, 3.14

Operating systems tested on:

macOS

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