> ## Documentation Index
> Fetch the complete documentation index at: https://docs.evalit.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Python SDK overview

Welcome to the Evalit Python SDK. This guide shows how to install and use the core building blocks in the `evalit` package.

## Installation

```bash theme={null}
pip install evalit
```

## Core modules

* PromptManager — create, version, activate, and fetch prompts.
* Experiment — run A/B tests between prompt variants.
* Evaluator — fit outcomes and score/predict prompt performance.

Jump to:

* Prompt management: /sdk/python/prompt-manager
* A/B testing: /sdk/python/experiment
* Evaluation model: /sdk/python/evaluator