fix(document_loaders): fallback to TextLoader for unsupported Unstructured file types#541
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Mohammad Mohtashim (keenborder786) wants to merge 5 commits intolangchain-ai:mainfrom
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Add a per-file TextLoader fallback when UnstructuredFileLoader hits UnsupportedFileFormatError, apply post-processors, and log a warning. Includes unit tests and a small async mock fix in test_recursive_url_loader to restore expected test behavior.
We fall back to TextLoader because UnstructuredFileLoader can refuse files it can’t classify (e.g., .rs with a leading blank line) and raise UnsupportedFileFormatError. TextLoader is the simplest, dependency‑light way to still ingest the file as raw text (with encoding auto‑detect), so the loader doesn’t fail on otherwise readable content.
PS: Slight change in
test_octai.pyandtest_networkx.pybecause those tests were failing in CI pipeline (Don't know why and had nothing do with the change of this PR)Fixes: #485