TvControl .. does not work

[Bonze255]

Can you give an example for reading current_channel?
i can connect to the tv and read some system.info(), volume... but when i call get_current_channel(), get_current_program() ... does not work.
I get an error, when i use the example from the readme.

Error 'NoneType' object has no attribute 'text_message'
`
from pywebostv.discovery import *
from pywebostv.connection import *
from pywebostv.controls import *

self._client.connect()
self._tv = TvControl(self._client)
self._tv.subscribe_get_current_channel(callback=self.on_current_channel)

def on_current_channel(status, payload):
if status:
self.logger.debug("LGWebos: current_program {}".format(payload))
else:
self.logger.debug("LGWebos: Something went wrong.")
`

[supersaiyanmode]

It's weird, there's no instance (that I could find) of this project reading/writing a field named text_message. Do you have a stacktrace? Where is it coming from?

Also, can you please retry that in a new virtualenv, and share the pip freeze output?

[Bonze255]

i play around, without a try block self._tv.channel_list() or self._tv.subscribe_channel_list(callback=self.on_channel)
will raise

self._tv.subscribe_channel_list(callback=self.on_channel)

File "/usr/local/lib/python3.7/dist-packages/pywebostv/controls.py", line 76, in getattr
raise AttributeError(name)
AttributeError: subscribe_channel_list

but why?

[supersaiyanmode]

That is because channel_list(..) is not something you can subscribe to (because the TV doesn't emit events for it, and there's no subscription attribute that exists there).

However, looking at the source, I think self._tv.subscribe_get_current_channel(callback=self.on_current_channel) should work for you. Can you please paste the stacktrace associated with text_message as in the original post?

[Bonze255]

ok, i would try it with that code and i would search fot the text_message.. I try it with a simple code now, but i think something is wrong..

self._tv.subscribe_get_current_channel(callback=self.on_current_channel)

returns Traceback (most recent call last): File "test.py", line 78, in <module> test() File "test.py", line 51, in __init__ self._tv.subscribe_get_current_channel(callback=self.on_current_channel) File "/usr/local/lib/python3.7/dist-packages/pywebostv/controls.py", line 76, in __getattr__ raise AttributeError(name) AttributeError: subscribe_get_current_channel

self._data['channel_list'] = self._tv.channel_list()

Traceback (most recent call last): File "test.py", line 78, in <module> test() File "test.py", line 53, in __init__ self._data['channel_list'] = self._tv.channel_list() File "/usr/local/lib/python3.7/dist-packages/pywebostv/controls.py", line 91, in __getattr__ raise AttributeError(name) AttributeError: channel_list
it seems for me, that Class TvControl does not work. The TV is using Webos 05.70. I read a long time ago, with other code the channel infos from the tv, so i know that this must work.

[Bonze255]

i´ve checked the requirements, so ws4py==0.4.2 was version 0.5.1, i had now downgraded to ws4py==0.4.2 but its the same.
ive checked the pylgtv package, and call the get_current_channel() method, so i get

{'channelId': '7_17_4_0_1089_12020_1', 'signalChannelId': '1089_12020_1', 'channelModeId': 2, 'channelModeName': 'Satellite', 'channelTypeId': 6, 'channelTypeName': 'Satellite Digital TV', 'channelNumber': '4', 'channelName': 'RTL2', 'physicalNumber': 17, 'isSkipped': False, 'isLocked': False, 'isDescrambled': False, 'isScrambled': False, 'isFineTuned': False, 'isInvisible': False, 'favoriteGroup': 'A', 'hybridtvType': 'HBBTV', 'dualChannel': {'dualChannelId': None, 'dualChannelTypeId': None, 'dualChannelTypeName': None, 'dualChannelNumber': None}, 'returnValue': True}

i think there is a bug in your getattr(self, name): or TvControl

[Bonze255]

when i write the TvControl class diretly into my programfile, then it works ..
`class TvControl1(WebOSControlBase):
COMMANDS = {
"channel_down": {"uri": "ssap://tv/channelDown"},
"channel_up": {"uri": "ssap://tv/channelUp"},
"channel_list": {"uri": "ssap://tv/getChannelList"}

     }`

[supersaiyanmode]

Hey, hi. I haven't been able to reproduce it. If you are able to have it working in when you recreate the class in your local program as opposed to the installed library -- it sounds like a weird issue.

I noticed that you have the library installed to /usr/local/lib. Can you please retry installing it in a virtualenv?

[Bonze255]

it works, but i have found something about the failure..

2020-04-05 17:50:37 ERROR CP Server Thread-8 Item tv.befehl.channel_down: problem running <bound method LGWebos.update_item of <plugins.webos.LGWebos object at 0x7fe0c489b748>>: 'NoneType' object has no attribute 'text_message'
Traceback (most recent call last):
File "/usr/local/smarthome/lib/item.py", line 2224, in __update
method(self, caller, source, dest)
File "/usr/local/smarthome/plugins/webos/init.py", line 342, in update_item
self._tv.channel_down()
File "/usr/local/lib/python3.7/dist-packages/pywebostv/controls.py", line 115, in request_func
timeout=timeout)
File "/usr/local/lib/python3.7/dist-packages/pywebostv/controls.py", line 59, in request
get_queue=True)
File "/usr/local/lib/python3.7/dist-packages/pywebostv/connection.py", line 166, in send_message
self.send(json.dumps(obj))
File "/usr/local/lib/python3.7/dist-packages/ws4py/websocket.py", line 299, in send
message_sender = self.stream.binary_message if binary else self.stream.text_message
AttributeError: 'NoneType' object has no attribute 'text_message'

[supersaiyanmode]

Sounds like your WebSocket stream is None. Are you sure you called .connect() ? So, the stream attribute should not be None after a successful .connect(). Can you please check when stream is set to None? At the moment, since you say it works for you, I am inclining towards closing this issue. But I'll keep it open in case you are able to find the real root cause.

[Bonze255]

when i use subcribe, it is not possible to read some other infos from the same class,
when i dont use subscribe it works..

[supersaiyanmode]

@Bonze255 That sounds like a bug in the library. Can you please open a new bug (and perhaps close this one)?

Also, can you please include a small reproducible test code?