mirror of
https://github.com/hwchase17/langchain
synced 2024-11-18 09:25:54 +00:00
75 lines
2.4 KiB
Markdown
75 lines
2.4 KiB
Markdown
|
# python-lint
|
||
|
|
|
||
|
|
This agent specializes in generating high-quality Python code with a focus on proper formatting and linting. It uses `black`, `ruff`, and `mypy` to ensure the code meets standard quality checks.
|
||
|
|
|
||
|
|
This streamlines the coding process by integrating and responding to these checks, resulting in reliable and consistent code output.
|
||
|
|
|
||
|
|
It cannot actually execute the code it writes, as code execution may introduce additional dependencies and potential security vulnerabilities.
|
||
|
|
This makes the agent both a secure and efficient solution for code generation tasks.
|
||
|
|
|
||
|
|
You can use it to generate Python code directly, or network it with planning and execution agents.
|
||
|
|
|
||
|
|
## Environment Setup
|
||
|
|
|
||
|
|
- Install `black`, `ruff`, and `mypy`: `pip install -U black ruff mypy`
|
||
|
|
- Set `OPENAI_API_KEY` environment variable.
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
To use this package, you should first have the LangChain CLI installed:
|
||
|
|
|
||
|
|
```shell
|
||
|
|
pip install -U langchain-cli
|
||
|
|
```
|
||
|
|
|
||
|
|
To create a new LangChain project and install this as the only package, you can do:
|
||
|
|
|
||
|
|
```shell
|
||
|
|
langchain app new my-app --package python-lint
|
||
|
|
```
|
||
|
|
|
||
|
|
If you want to add this to an existing project, you can just run:
|
||
|
|
|
||
|
|
```shell
|
||
|
|
langchain app add python-lint
|
||
|
|
```
|
||
|
|
|
||
|
|
And add the following code to your `server.py` file:
|
||
|
|
```python
|
||
|
|
from python_lint import agent_executor as python_lint_agent
|
||
|
|
|
||
|
|
add_routes(app, python_lint_agent, path="/python-lint")
|
||
|
|
```
|
||
|
|
|
||
|
|
(Optional) Let's now configure LangSmith.
|
||
|
|
LangSmith will help us trace, monitor and debug LangChain applications.
|
||
|
|
LangSmith is currently in private beta, you can sign up [here](https://smith.langchain.com/).
|
||
|
|
If you don't have access, you can skip this section
|
||
|
|
|
||
|
|
|
||
|
|
```shell
|
||
|
|
export LANGCHAIN_TRACING_V2=true
|
||
|
|
export LANGCHAIN_API_KEY=<your-api-key>
|
||
|
|
export LANGCHAIN_PROJECT=<your-project> # if not specified, defaults to "default"
|
||
|
|
```
|
||
|
|
|
||
|
|
If you are inside this directory, then you can spin up a LangServe instance directly by:
|
||
|
|
|
||
|
|
```shell
|
||
|
|
langchain serve
|
||
|
|
```
|
||
|
|
|
||
|
|
This will start the FastAPI app with a server is running locally at
|
||
|
|
[http://localhost:8000](http://localhost:8000)
|
||
|
|
|
||
|
|
We can see all templates at [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs)
|
||
|
|
We can access the playground at [http://127.0.0.1:8000/python-lint/playground](http://127.0.0.1:8000/python-lint/playground)
|
||
|
|
|
||
|
|
We can access the template from code with:
|
||
|
|
|
||
|
|
```python
|
||
|
|
from langserve.client import RemoteRunnable
|
||
|
|
|
||
|
|
runnable = RemoteRunnable("http://localhost:8000/python-lint")
|
||
|
|
```
|