Python SDK for the Unstructured API

This is a Python client for the Unstructured API.

Please refer to the Unstructured docs for a full guide to using the client.

SDK Installation

pip install unstructured-client

SDK Example Usage

Example

import os

import unstructured_client
from unstructured_client.models import operations, shared

client = unstructured_client.UnstructuredClient(
    api_key_auth=os.getenv("UNSTRUCTURED_API_KEY"),
    server_url=os.getenv("UNSTRUCTURED_API_URL"),
)

filename = "PATH_TO_FILE"
with open(filename, "rb") as f:
    data = f.read()

req = operations.PartitionRequest(
    partition_parameters=shared.PartitionParameters(
        files=shared.Files(
            content=data,
            file_name=filename,
        ),
        # --- Other partition parameters ---
        strategy=shared.Strategy.AUTO,
        languages=['eng'],
    ),
)

try:
    res = client.general.partition(request=req)
    print(res.elements[0])
except Exception as e:
    print(e)

Refer to the API parameters page for all available parameters.

Configuration

Splitting PDF by pages

See page splitting for more details.

In order to speed up processing of large PDF files, the client splits up PDFs into smaller files, sends these to the API concurrently, and recombines the results. split_pdf_page can be set to False to disable this.

The amount of workers utilized for splitting PDFs is dictated by the split_pdf_concurrency_level parameter, with a default of 5 and a maximum of 15 to keep resource usage and costs in check. The splitting process leverages asyncio to manage concurrency effectively. The size of each batch of pages (ranging from 2 to 20) is internally determined based on the concurrency level and the total number of pages in the document. Because the splitting process uses asyncio the client can encouter event loop issues if it is nested in another async runner, like running in a gevent spawned task. Instead, this is safe to run in multiprocessing workers (e.g., using multiprocessing.Pool with fork context).

Example:

req = shared.PartitionParameters(
    files=files,
    strategy="fast",
    languages=["eng"],
    split_pdf_concurrency_level=8
)

Sending specific page ranges

When split_pdf_page=True (the default), you can optionally specify a page range to send only a portion of your PDF to be extracted. The parameter takes a list of two integers to specify the range, inclusive. A ValueError is thrown if the page range is invalid.

Example:

req = shared.PartitionParameters(
    files=files,
    strategy="fast",
    languages=["eng"],
    split_pdf_page_range=[10,15],
)

Splitting PDF by pages - strict mode

When split_pdf_allow_failed=False (the default), any errors encountered during sending parallel request will break the process and raise an exception. When split_pdf_allow_failed=True, the process will continue even if some requests fail, and the results will be combined at the end (the output from the errored pages will not be included).

Example:

req = shared.PartitionParameters(
    files=files,
    strategy="fast",
    languages=["eng"],
    split_pdf_allow_failed=True,
)

Retries

Some of the endpoints in this SDK support retries. If you use the SDK without any configuration, it will fall back to the default retry strategy provided by the API. However, the default retry strategy can be overridden on a per-operation basis, or across the entire SDK.

To change the default retry strategy for a single API call, simply provide a RetryConfig object to the call:

import unstructured_client
from unstructured_client.models import operations, shared
from unstructured_client.utils import BackoffStrategy, RetryConfig

s = unstructured_client.UnstructuredClient(
    api_key_auth="YOUR_API_KEY",
)


res = s.general.partition(request=operations.PartitionRequest(
    partition_parameters=shared.PartitionParameters(
        files=shared.Files(
            content='0x2cC94b2FEF'.encode(),
            file_name='your_file_here',
        ),
        chunking_strategy=shared.ChunkingStrategy.BY_TITLE,
        split_pdf_page_range=[
            1,
            10,
        ],
        strategy=shared.Strategy.HI_RES,
    ),
),
    RetryConfig('backoff', BackoffStrategy(1, 50, 1.1, 100), False))

if res.elements is not None:
    # handle response
    pass

If you'd like to override the default retry strategy for all operations that support retries, you can use the retry_config optional parameter when initializing the SDK:

import unstructured_client
from unstructured_client.models import operations, shared
from unstructured_client.utils import BackoffStrategy, RetryConfig

s = unstructured_client.UnstructuredClient(
    retry_config=RetryConfig('backoff', BackoffStrategy(1, 50, 1.1, 100), False),
    api_key_auth="YOUR_API_KEY",
)


res = s.general.partition(request=operations.PartitionRequest(
    partition_parameters=shared.PartitionParameters(
        files=shared.Files(
            content='0x2cC94b2FEF'.encode(),
            file_name='your_file_here',
        ),
        chunking_strategy=shared.ChunkingStrategy.BY_TITLE,
        split_pdf_page_range=[
            1,
            10,
        ],
        strategy=shared.Strategy.HI_RES,
    ),
))

if res.elements is not None:
    # handle response
    pass

Custom HTTP Client

The Python SDK makes API calls using the requests HTTP library. In order to provide a convenient way to configure timeouts, cookies, proxies, custom headers, and other low-level configuration, you can initialize the SDK client with a custom requests.Session object.

For example, you could specify a header for every request that this sdk makes as follows:

import unstructured_client
import requests

http_client = requests.Session()
http_client.headers.update({'x-custom-header': 'someValue'})
s = unstructured_client.UnstructuredClient(client=http_client)

Maturity

This SDK is in beta, and there may be breaking changes between versions without a major version update. Therefore, we recommend pinning usage to a specific package version. This way, you can install the same version each time without breaking changes unless you are intentionally looking for the latest version.

Installation Instructions for Local Development

The following instructions are intended to help you get up and running with unstructured-python-client locally if you are planning to contribute to the project.

• Using pyenv to manage virtualenv's is recommended but not necessary

  • Mac install instructions. See here for more detailed instructions.
    • brew install pyenv-virtualenv
    • pyenv install 3.10
  • Linux instructions are available here.

• Create a virtualenv to work in and activate it, e.g. for one named unstructured-python-client:

  pyenv virtualenv 3.10 unstructured-python-client pyenv activate unstructured-python-client

• Run make install and make test

Contributions

While we value open-source contributions to this SDK, this library is generated programmatically by Speakeasy. In order to start working with this repo, you need to:

1. Install Speakeasy client locally https://github.com/speakeasy-api/speakeasy#installation
2. Run speakeasy auth login
3. Run make client-generate. This allows to iterate development with python client.

There are two important files used by make client-generate:

1. openapi.json which is actually not stored here, but fetched from unstructured-api, represents the API that is supported on backend.
2. overlay_client.yaml is a handcrafted diff that when applied over above, produces openapi_client.json which is used to generate SDK.

Once PR with changes is merged, Github CI will autogenerate the Speakeasy client in a new PR, using the openapi.json and overlay_client.yaml You will have to manually bring back the human created lines in it.

Feel free to open a PR or a Github issue as a proof of concept and we'll do our best to include it in a future release!

SDK Created by Speakeasy