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feat: added element metadata to unstructured loader #1068

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Merged
merged 2 commits into from
Feb 16, 2023
Merged

feat: added element metadata to unstructured loader #1068

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bc18594
added element metadata to unstructured loader
MthwRobinson Feb 15, 2023
f386180
update github handle in comment
MthwRobinson Feb 15, 2023
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15 changes: 11 additions & 4 deletions langchain/document_loaders/unstructured.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,12 +33,19 @@ def _get_elements(self) -> List:
def load(self) -> List[Document]:
"""Load file."""
elements = self._get_elements()
metadata = {"source": self.file_path}
if self.mode == "elements":
docs = [
Document(page_content=str(el), metadata=metadata) for el in elements
]
docs: List[Document] = list()
for element in elements:
metadata = {"source": self.file_path}
# NOTE(MthwRobinson) - the attribute check is for backward compatibility
# with unstructured<0.4.9. The metadata attributed was added in 0.4.9.
if hasattr(element, "metadata"):
metadata.update(element.metadata.to_dict())
if hasattr(element, "category"):
metadata["category"] = element.category
docs.append(Document(page_content=str(element), metadata=metadata))
elif self.mode == "single":
metadata = {"source": self.file_path}
text = "\n\n".join([str(el) for el in elements])
docs = [Document(page_content=text, metadata=metadata)]
else:
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