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🐛 Check that we always get a valid ALTO namespace (satifies mypy)

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Mike Gerber 2024-03-27 17:57:53 +01:00
parent 19d1a00817
commit 5d9f0c482f
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src/dinglehopper/ocr_files.py
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@ -18,6 +18,7 @@ def alto_namespace(tree: ET._ElementTree) -> Optional[str]:
"""
root_name = ET.QName(tree.getroot().tag)
if root_name.localname == "alto":
assert isinstance(root_name.namespace, str)
return root_name.namespace
else:
raise ValueError("Not an ALTO tree")