This page is about the Python interpreter environment inside the Riza Code Interpreter API. If you’re looking to call the API from Python, see the API Client Libraries guide.

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Runtime

Riza runs Python 3.12.0 compiled to WASM. The entire standard library is included.

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Limitations

There are no limitations beyond the general sandbox limitations that apply to all Riza interpreter runtime environments.

See our roadmap for planned future improvements.

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Output

You can write to stdout and stderr as you typically would.

import sys

print('Hello, World!')
print('Something bad happened', file=sys.stderr)

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Input

You can read from stdin and access command line arguments and environment variables, all as you typically would.

import os, sys

print(sys.stdin.read())
print(sys.argv)
print(dict(os.environ))

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HTTP

You can make HTTP requests using the requests or httpx packages.

import requests

resp = requests.post("https://httpbin.org/post", json={
    "foo": "bar",
})
print(resp.json())

import httpx

resp = httpx.post("https://httpbin.org/post", json={
    "foo": "bar",
})
print(resp.json())

Network access is blocked by default, so you need to allow HTTP traffic to individual hosts using the allow_http_hosts parameter. See the HTTP guide for a full example.

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