enapter 0.9.2

Enapter Python SDK

Enapter Python SDK

Enapter software development kit for Python.

:warning: This project is work in progress. The API is not stable and may change at any time. :warning:

Installation

Stable from PyPI:

pip install enapter

Latest for GitHub:

pip install git+https://github.com/Enapter/python-sdk#egg=enapter

Usage

Checkout examples.

Implementing your own VUCM

Device Telemetry and Properties

Every method of enapter.vucm.Device subclass with a name that starts with task_ prefix is considered a device task. When such a device is started, all of its tasks are started as well. Device tasks are started in random order and are being executed concurrently in the background. If a device task returns or raises an exception, device routine is terminated. A typical use of the task is to run a periodic job to send device telemetry and properties.

In order to send telemetry and properties define two corresponding device tasks. It is advised (but is not obligatory) to send telemetry every 1 second and to send properties every 10 seconds.

Examples:

• wttr-in

Device Commands

Every method of enapter.vucm.Device subclass with a name that starts with cmd_ prefix is considered a device command handler. Device command handlers receive the same arguments as described in device Blueprint manifest and can optionally return a payload as dict.

In order to handle device commands define corresponding device command handlers.

Examples:

• zhimi-fan-za5

Device Alerts

Device alerts are stored in self.alerts. It is a usual Python set, so you can add an alert using alerts.add, remove an alert alerts.remove and clear alerts using alerts.clear.

Alerts are sent only as part of telemetry, so in order to report device alert, use send_telemetry with any payload.

Running your own VUCM via Docker

A simple Dockerfile can be:

FROM python:3.10-alpine3.16

WORKDIR /app

RUN python -m venv .venv
COPY requirements.txt requirements.txt
RUN .venv/bin/pip install -r requirements.txt

COPY script.py script.py

CMD [".venv/bin/python", "script.py"]

:information_source: If you are using Enapter Gateway and running Linux, you should connect your containers to host network :information_source::

docker run --network host ...