Vielen Dank Dominik für Deine Hilfe
Es hat jetzt funktioniert.
Meine googlecast Devices waren jetzt verbunden (ready).
Dann habe ich allerdings den RPI rebootet, um zu überprüfen, ob es dann auch noch funktioniert.
Im local_pybinding-Device steht dann: "info Please wait till connection is established, might take a few minutes"
Und das steht auch noch nach Stunden da und die googlecast Devices sind offline.
Im PythonBinding.log steht folgendes:
2021-01-31 12:55:01,662 - INFO - fhempy.lib.fhem_pythonbinding: Starting fhempy...
2021-01-31 12:55:01,813 - INFO - fhempy.lib.fhem_pythonbinding: Waiting for FHEM connection
2021-01-31 12:55:01,888 - INFO - asyncio: <Server sockets=(<asyncio.TransportSocket fd=6, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=6, laddr=('0.0.0.0', 15733)>,)> is serving
2021-01-31 12:55:09,521 - INFO - fhempy.lib.fhem_pythonbinding: Incoming FHEM connection: 127.0.0.1
2021-01-31 12:55:09,644 - WARNING - asyncio: Executing <Task pending name='Task-5' coro=<WebSocketServerProtocol.handler() running at /opt/fhem/.local/lib/python3.8/site-packages/websockets/server.py:191> wait_for=<Future pending cb=[<TaskWakeupMethWrapper object at 0x75cd8f88>()] created at /usr/local/lib/python3.8/asyncio/base_events.py:422> created at /opt/fhem/.local/lib/python3.8/site-packages/websockets/server.py:116> took 0.141 seconds
2021-01-31 12:55:09,980 - WARNING - asyncio: Executing <Task pending name='Task-9' coro=<PyBinding.onMessage() running at /opt/fhem/.local/lib/python3.8/site-packages/fhempy/lib/fhem_pythonbinding.py:126> wait_for=<Future pending cb=[_chain_future.<locals>._call_check_cancel() at /usr/local/lib/python3.8/asyncio/futures.py:360, <TaskWakeupMethWrapper object at 0x74ae9f88>()] created at /usr/local/lib/python3.8/asyncio/base_events.py:422> created at /usr/local/lib/python3.8/asyncio/tasks.py:382> took 0.311 seconds