[issue17088] ElementTree incorrectly refuses to write attributes without namespaces when default_namespace is used

[Stefan Behnel]

Stefan Behnel <stefan_ml at behnel.de> added the comment:

The obvious work-around is to not use a default namespace. The result is just a visual difference, not a semantic one.

If someone wants to continue with the existing PR, I'll try to free some time to review any improvements.

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versions: +Python 3.10, Python 3.11 -Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue17088>
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