Python SDK

Install from GitHub

The SDK source is public on the main branch. These instructions use Git or a locally built package; package registry releases are a separate step.

pip install "git+https://github.com/pubbio/sdk-python.git@main"

Install into your existing virtual environment. Replace main with a verified commit to pin the dependency.

Publish an event

Set PUBB_APP_ID, PUBB_APP_KEY and PUBB_APP_SECRET in your server environment, then publish after checking the caller's permissions.

import os
from pubb import PubbServer

pubb = PubbServer(os.environ["PUBB_APP_ID"], os.environ["PUBB_APP_KEY"],
                  os.environ["PUBB_APP_SECRET"])
result = pubb.trigger("notifications", "message.sent", {"message": "Hello from Pubb!"})
print(result.publication_id)

Calls are synchronous and use a configurable timeout. trigger accepts socket_id and idempotency_key keyword arguments. PubbAPIError exposes status and retry_after; PubbProtocolError indicates an invalid response. Network errors propagate from urllib.

Private and presence channels

Return authorize_channel(socket_id, channel) or authorize_presence_channel(socket_id, channel, verified_user_id, user_info) from your authenticated backend route after checking channel permissions.

Your backend receives socket_id and channel_name, checks the authenticated user’s access, and returns auth plus channel_data for presence. Derive the presence user ID from the session and forward the signed channel_data unchanged.

Keep the app secret on your trusted server. Public channels must not carry personal or restricted data. Read the channel access reference for the protocol.

Verify your integration

1. Subscribe to notifications in your app or the dashboard’s Live console.
2. Publish message.sent to the same application and channel from your backend.
3. Check the event payload, connection cleanup and recovery after a disconnect. Test denied access as well as successful private subscriptions.

The repositories include automated tests and examples. Verify end-to-end delivery with your own application before sending production traffic. Refetch durable state after reconnecting; missed events are not replayed.

Legacy pusher:* and pusher_internal:* control names are retained where required by the protocol. Their presence alone does not imply drop-in compatibility with every Pusher client or server.