langchain-ppio

langchain-ppio provides a PPIO sandbox backend for Deep Agents, implemented with the PPIO E2B-compatible API.

Install

uv add langchain-ppio

Quick Start

import os
from pathlib import Path

from e2b import Sandbox
from langchain_ppio import PPIOSandbox

# Required for PPIO E2B compatibility
os.environ.setdefault("E2B_DOMAIN", "sandbox.ppio.cn")
if not os.getenv("E2B_API_KEY") and Path("ppio_key").exists():
    os.environ["E2B_API_KEY"] = Path("ppio_key").read_text().strip()

sandbox = Sandbox.create()
backend = PPIOSandbox(sandbox=sandbox)

result = backend.execute("echo hello")
print(result.output)

sandbox.kill()

Run Smoke Test

uv run langchain-ppio-smoke

The smoke command reads E2B_API_KEY first, then falls back to ppio_key.
E2B_DOMAIN defaults to sandbox.ppio.cn.

Build & Publish With uv

uv build
uv publish