If you want to customize the Code Interprerter sandbox (e.g.: add a preinstalled package) you can do that by using a custom sandbox template.

1. Create custom sandbox by following this guide

2. Use prebuilt E2B Code Interpreter image by replacing the FROM command in your e2b.Dockerfile with following

   FROM e2bdev/code-interpreter:latest

3. Copy start-up.sh to the same directory where's your e2b.toml

4. Run the following in the same directory where's your e2b.toml

   e2b template build -c "/root/.jupyter/start-up.sh"

5. Use your custom sandbox with Code Interpreter SDK

   Python

   from e2b_code_interpreter import Sandbox
   sandbox = Sandbox(template="your-custom-sandbox-name")
   execution = sandbox.run_code("print('hello')")
   sandbox.kill()
   
   # Or you can use `with` which handles closing the sandbox for you
   with Sandbox(template="your-custom-sandbox-name") as sandbox:
       execution = sandbox.run_code("print('hello')")

   JavaScript/TypeScript

   import {Sandbox} from '@e2b/code-interpreter'

const sandbox = await Sandbox.create({template: 'your-custom-sandbox-name'}) const execution = await sandbox.runCode('print("hello")') await sandbox.kill()