pymee

pymee

pymee is the backbone of the Home Assistant homee integration.

pymee is an unofficial python library for interacting with the homee smart home/home automation platform. It uses the websockets library to connect to a local homee cube and maintains a list of nodes (devices), attributes, groups, users and more that are updated whenever new data arrives from homee.

Large parts of this library are directly ported from the awesome homeeApi javascript library.

Installation

Install from PyPI:

pip install pymee

Usage

Getting started

pymee should be used with asyncio:

from pymee import Homee
import asyncio
import logging

# Set debug level so we get verbose logs
logging.getLogger().setLevel(logging.DEBUG)

# Define a simple async entry point function
async def main():
    # Create an instance of Homee
    homee = Homee("<HOMEE IP>", "<USERNAME>", "<PASSWORD>")

    # Connect and start listening on a new task
    homeeTask = asyncio.create_task(homee.run())

    # Wait until the connection is live and all data has been received
    await homee.wait_until_connected()

    # Do something here...

    # Close the connection and wait until we are disconnected
    homee.disconnect()
    await homee.wait_until_disconnected()

# Start our entry point function
asyncio.run(main())

Access devices and attributes

Devices are represented as "nodes" in the api. All nodes are available in the list Homee.nodes and are represented by the HomeeNode class. Each node has a list of attributes accessible from HomeeNode.attributes. The attributes on a node represent the different attributes on a device, i.e. if a light is turned on or the target temperature of a thermostat. Attributes can be identified by the HomeeAttribute.type property. You can compare the type with the values from pymee.const.AttributeType to figure out what each attribute represents. The value can be accessed with the HomeeAttribute.current_value property.

If you need to change the value of an attribute you can use Homee.set_value():

# Get some node, for example using get_node_by_id
node = homee.get_node_by_id(5)

# Turn on the device. You need to pass the id of the node and the attribute as well as the value.
# Using get_attribute_by_type you can quickly find the desired attribute.
await homee.set_value(node.id, node.get_attribute_by_type(AttributeType.ON_OFF).id, 1)

Receiving updates

The Homee class can be inherited to receive events:

class MyHomee(Homee):
    # Called once the websocket connection has been established.
    async def on_connected(self):
        pass

    # Called after the websocket connection has been closed.
    async def on_disconnected(self):
        pass

    # Called after an error has occurred.
    async def on_error(self, error: str):
        pass

    # Called when the websocket receives a message.
    # The message is automatically parsed from json into a dictionary.
    async def on_message(self, msg: dict):
        pass

    # Called when an 'attribute' message was received and an attribute was updated.
    # Contains the parsed json attribute data and the corresponding node instance.
    async def on_attribute_updated(self, attribute_data: dict, node: HomeeNode):
        pass

You can also add a listener to specific nodes to receive attribute updates:

# A listener is just a function that takes a node and an attribute
def my_node_handler(node: HomeeNode, attribute: HomeeAttribute):
    logging.info(f"Attribute {attribute.id} of node {node.name} was updated!")

node = homee.get_node_by_id(5)

# Adding the listener will return a function that can be called to remove the listener again
remove_listener = node.add_on_changed_listener(my_node_handler)

# If you don't need the listener anymore...
remove_listener()

To manually request updates from Homee, you can use the following functions:

homee.update_node(self, nodeId: int)
"""Request current data for a node."""

homee.update_attribute(self, nodeId: int, attributeId: int)
"""Request current data for an attribute"""

More examples

Example implementation that dumps all info into a json file and logs whenever a light is turned on or off:

from pymee.const import NodeProfile, AttributeType
from pymee.model import HomeeAttribute

class JsonHomee(Homee):
    async def on_message(self, msg: dict):
        # Homee sends an "all" message at the beginning of each connection
        # or after 'GET:all' was send.
        if list(msg)[0] == "all":
            f = open("homee.json", "w")
            f.write(json.dumps(msg))
            f.close()

    async def on_attribute_updated(self, attribute_data, node):
        # Wrap the attribute data with the HomeeAttribute class for easier access
        attribute = HomeeAttribute(attribute_data)

        # We only care for changes
        if attribute.current_value == attribute.target_value:
            return

        # Check node profile (the type of device) and attribute type
        if (
            node.profile == NodeProfile.DIMMABLE_EXTENDED_COLOR_LIGHT
            and attribute.type == AttributeType.ON_OFF
        ):
            self._log(
                f"[Light] {node.name} turned {'on' if attribute.target_value == 1 else 'off'}"
            )

License

MIT