forevervm-sdk 0.1.35

Developer SDK for foreverVM

foreverVM

repo	version
cli
sdk

foreverVM provides an API for running arbitrary, stateful Python code securely.

The core concepts in foreverVM are machines and instructions.

Machines represent a stateful Python process. You interact with a machine by running instructions (Python statements and expressions) on it, and receiving the results. A machine processes one instruction at a time.

Getting started

You will need an API token (if you need one, reach out to [e-mail]).

The easiest way to try out foreverVM is using the CLI. First, you will need to log in:

uvx forevervm login

Once logged in, you can open a REPL interface with a new machine:

uvx forevervm repl

When foreverVM starts your machine, it gives it an ID that you can later use to reconnect to it. You can reconnect to a machine like this:

uvx forevervm repl [machine_name]

You can list your machines (in reverse order of creation) like this:

uvx forevervm machine list

You don't need to terminate machines -- foreverVM will automatically swap them from memory to disk when they are idle, and then automatically swap them back when needed. This is what allows foreverVM to run repls “forever”.

Using the API

import os
from forevervm_sdk import ForeverVM

token = os.getenv('FOREVERVM_TOKEN')
if not token:
    raise ValueError('FOREVERVM_TOKEN is not set')

# Initialize foreverVM
fvm = ForeverVM(token)

# Connect to a new machine
with fvm.repl() as repl:

    # Execute some code
    exec_result = repl.exec('4 + 4')

    # Get the result
    print('result:', exec_result.result)

    # Execute code with output
    exec_result = repl.exec('for i in range(10):\n  print(i)')

    for output in exec_result.output:
        print(output["stream"], output["data"])