mirror of
https://github.com/hwchase17/langchain
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65 lines
2.4 KiB
Python
65 lines
2.4 KiB
Python
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import os
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from typing import List
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from langchain_community.document_loaders.unstructured import UnstructuredFileLoader
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class UnstructuredPowerPointLoader(UnstructuredFileLoader):
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"""Load `Microsoft PowerPoint` files using `Unstructured`.
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Works with both .ppt and .pptx files.
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You can run the loader in one of two modes: "single" and "elements".
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If you use "single" mode, the document will be returned as a single
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langchain Document object. If you use "elements" mode, the unstructured
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library will split the document into elements such as Title and NarrativeText.
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You can pass in additional unstructured kwargs after mode to apply
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different unstructured settings.
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Examples
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--------
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from langchain_community.document_loaders import UnstructuredPowerPointLoader
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loader = UnstructuredPowerPointLoader(
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"example.pptx", mode="elements", strategy="fast",
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)
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docs = loader.load()
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References
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----------
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https://unstructured-io.github.io/unstructured/bricks.html#partition-pptx
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"""
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def _get_elements(self) -> List:
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from unstructured.__version__ import __version__ as __unstructured_version__
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from unstructured.file_utils.filetype import FileType, detect_filetype
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unstructured_version = tuple(
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[int(x) for x in __unstructured_version__.split(".")]
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)
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# NOTE(MthwRobinson) - magic will raise an import error if the libmagic
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# system dependency isn't installed. If it's not installed, we'll just
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# check the file extension
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try:
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import magic # noqa: F401
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is_ppt = detect_filetype(self.file_path) == FileType.PPT
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except ImportError:
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_, extension = os.path.splitext(str(self.file_path))
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is_ppt = extension == ".ppt"
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if is_ppt and unstructured_version < (0, 4, 11):
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raise ValueError(
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f"You are on unstructured version {__unstructured_version__}. "
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"Partitioning .ppt files is only supported in unstructured>=0.4.11. "
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"Please upgrade the unstructured package and try again."
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)
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if is_ppt:
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from unstructured.partition.ppt import partition_ppt
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return partition_ppt(filename=self.file_path, **self.unstructured_kwargs)
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else:
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from unstructured.partition.pptx import partition_pptx
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return partition_pptx(filename=self.file_path, **self.unstructured_kwargs)
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