mirror of
https://github.com/hwchase17/langchain
synced 2024-11-04 06:00:26 +00:00
65 lines
2.4 KiB
Python
65 lines
2.4 KiB
Python
|
import os
|
||
|
|
from typing import List
|
||
|
|
|
||
|
|
from langchain_community.document_loaders.unstructured import UnstructuredFileLoader
|
||
|
|
|
||
|
|
|
||
|
|
class UnstructuredPowerPointLoader(UnstructuredFileLoader):
|
||
|
|
"""Load `Microsoft PowerPoint` files using `Unstructured`.
|
||
|
|
|
||
|
|
Works with both .ppt and .pptx files.
|
||
|
|
You can run the loader in one of two modes: "single" and "elements".
|
||
|
|
If you use "single" mode, the document will be returned as a single
|
||
|
|
langchain Document object. If you use "elements" mode, the unstructured
|
||
|
|
library will split the document into elements such as Title and NarrativeText.
|
||
|
|
You can pass in additional unstructured kwargs after mode to apply
|
||
|
|
different unstructured settings.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
--------
|
||
|
|
from langchain_community.document_loaders import UnstructuredPowerPointLoader
|
||
|
|
|
||
|
|
loader = UnstructuredPowerPointLoader(
|
||
|
|
"example.pptx", mode="elements", strategy="fast",
|
||
|
|
)
|
||
|
|
docs = loader.load()
|
||
|
|
|
||
|
|
References
|
||
|
|
----------
|
||
|
|
https://unstructured-io.github.io/unstructured/bricks.html#partition-pptx
|
||
|
|
"""
|
||
|
|
|
||
|
|
def _get_elements(self) -> List:
|
||
|
|
from unstructured.__version__ import __version__ as __unstructured_version__
|
||
|
|
from unstructured.file_utils.filetype import FileType, detect_filetype
|
||
|
|
|
||
|
|
unstructured_version = tuple(
|
||
|
|
[int(x) for x in __unstructured_version__.split(".")]
|
||
|
|
)
|
||
|
|
# NOTE(MthwRobinson) - magic will raise an import error if the libmagic
|
||
|
|
# system dependency isn't installed. If it's not installed, we'll just
|
||
|
|
# check the file extension
|
||
|
|
try:
|
||
|
|
import magic # noqa: F401
|
||
|
|
|
||
|
|
is_ppt = detect_filetype(self.file_path) == FileType.PPT
|
||
|
|
except ImportError:
|
||
|
|
_, extension = os.path.splitext(str(self.file_path))
|
||
|
|
is_ppt = extension == ".ppt"
|
||
|
|
|
||
|
|
if is_ppt and unstructured_version < (0, 4, 11):
|
||
|
|
raise ValueError(
|
||
|
|
f"You are on unstructured version {__unstructured_version__}. "
|
||
|
|
"Partitioning .ppt files is only supported in unstructured>=0.4.11. "
|
||
|
|
"Please upgrade the unstructured package and try again."
|
||
|
|
)
|
||
|
|
|
||
|
|
if is_ppt:
|
||
|
|
from unstructured.partition.ppt import partition_ppt
|
||
|
|
|
||
|
|
return partition_ppt(filename=self.file_path, **self.unstructured_kwargs)
|
||
|
|
else:
|
||
|
|
from unstructured.partition.pptx import partition_pptx
|
||
|
|
|
||
|
|
return partition_pptx(filename=self.file_path, **self.unstructured_kwargs)
|