Nodes attributes

Showcases the Python-like pyaseba.client.Node interface, that exposes Aseba variables and functions as Python attributes and methods.

from pyaseba.client import Node
from pyaseba.client.node import EventSpec, MirroringConfig

When specialized, py:class:pyaseba.client.Node offers a higher-level, more Python-affine interface:

• Python properties for a selection of Aseba variables.

• Python methods node.call_<function>(...) as an alternative to node.call(<function>, ...).

In this example, the node exposes properties counter and value, and method call_square`.

class MySimpleNode(Node):
    mirroring_config = MirroringConfig(
        events={"event": EventSpec(variables=["counter"])},
        function_include=["square"])
    properties = ['counter', 'value']
    functions = ['square']


node = MySimpleNode(cached=True)
node.connect(target="tcp:port=33333", start_mirroring=True)

True

Aseba variables are now accessible as attributes.

node.value = 3  # type: ignore[attr-defined]

Pushing changes from Python to Aseba is postponed until pyaseba.client.Node.sync() is called.

node.sync()
node.value  # type: ignore[attr-defined]

3

Calling

node.call_square(3)  # type: ignore[attr-defined]

should set value to the square of 3. As value is not synchronized, we need to query it explicitly.

import time
time.sleep(1)

print(node.get("value", cached=False))

3

node.close(reset=True)