Install packages¶

Agent code usually needs third-party libraries. Install them inside the sandbox, then run code that uses them — all in the same VM so the install persists.

Python (pip)¶

from sistemo import Sandbox

with Sandbox(stack="python") as sb:
    sb.run("pip install requests")
    r = sb.run("python3 -c 'import requests; print(requests.__version__)'")
    print(r.stdout)

import { Sandbox } from "@sistemo/sdk";

const sb = await Sandbox.create({ stack: "python" });
await sb.run("pip install requests");
console.log((await sb.run("python3 -c 'import requests; print(requests.__version__)'")).stdout);
await sb.close();

Node (npm)¶

with Sandbox(stack="node") as sb:
    sb.run("npm install -g cowsay")
    print(sb.run("cowsay hello").stdout)

Install from a requirements file¶

Write the file into the VM, then install from it:

with Sandbox(stack="python") as sb:
    sb.run("cat > /tmp/requirements.txt <<'EOF'\nnumpy\npandas\nEOF")
    sb.run("pip install -r /tmp/requirements.txt")
    print(sb.run("python3 -c 'import numpy, pandas; print(numpy.__version__, pandas.__version__)'").stdout)

Pick the right base image¶

The base image already has Python and Node. Use a language-specific image for a leaner start:

See Images for the full catalog.