vellum-ai 0.8.27

No project description provided

Vellum Python Library

The Vellum Python SDK provides access to the Vellum API from python.

API Docs

You can find Vellum's complete API docs at docs.vellum.ai.

Installation

pip install --upgrade vellum-ai

Usage

Below is how you would invoke a deployed Prompt from the Vellum API. For a complete list of all APIs that Vellum supports, check out our API Reference.

from vellum import (
    StringInputRequest,
)
from vellum.client import Vellum

client = Vellum(
    api_key="YOUR_API_KEY",
)

def execute() -> str:
    result = client.execute_prompt(
        prompt_deployment_name="<example-deployment-name>>",
        release_tag="LATEST",
        inputs=[
            StringInputRequest(
                name="input_a",
                type="STRING",
                value="Hello, world!",
            )
        ],
    )
    
    if result.state == "REJECTED":
        raise Exception(result.error.message)

    return result.outputs[0].value

if __name__ == "__main__":
    print(execute())

[!TIP] You can set a system environment variable VELLUM_API_KEY to avoid writing your api key within your code. To do so, add export VELLUM_API_KEY=<your-api-token> to your ~/.zshrc or ~/.bashrc, open a new terminal, and then any code calling vellum.Vellum() will read this key.

Async Client

This SDK has an async version. Here's how to use it:

import asyncio

import vellum
from vellum.client import AsyncVellum

client = AsyncVellum(api_key="YOUR_API_KEY")

async def execute() -> str:
    result = await client.execute_prompt(
        prompt_deployment_name="<example-deployment-name>>",
        release_tag="LATEST",
        inputs=[
            vellum.StringInputRequest(
                name="input_a",
                value="Hello, world!",
            )
        ],
    )

    if result.state == "REJECTED":
        raise Exception(result.error.message)
    
    return result.outputs[0].value

if __name__ == "__main__":
    print(asyncio.run(execute()))

Contributing

While we value open-source contributions to this SDK, most of this library is generated programmatically.

Please feel free to make contributions to any of the directories or files below:

examples/*
src/vellum/lib/*
tests/*
README.md

Any additions made to files beyond those directories and files above would have to be moved over to our generation code (found in the separate vellum-client-generator repo), otherwise they would be overwritten upon the next generated release. Feel free to open a PR as a proof of concept, but know that we will not be able to merge it as-is. We suggest opening an issue first to discuss with us!