[BUG] DecodeError on lge_devices_setup

[pedrofalmeida]

Describe the bug
I'm using homeassistant in a venv environment, after upgrade to core-2021.2.1, the component is not loaded at startup with the error:

2021-02-07 08:15:50 INFO (SyncWorker_3) [custom_components.smartthinq_sensors.wideq.core_v2] Loading model info for Washer. Model: WTWN3, Url: https://eic.lgthinq.com:46030/api/webContents/modelJSON?modelName=WTWN3&countryCode=WW&contentsId=JS0427002048497951&authKey=thinq
2021-02-07 08:15:51 WARNING (MainThread) [custom_components.smartthinq_sensors] Connection not available. SmartThinQ platform not ready
Traceback (most recent call last):
  File "/home/<user>/.homeassistant/custom_components/smartthinq_sensors/__init__.py", line 170, in async_setup_entry
    lge_devices = await lge_devices_setup(hass, client)
  File "/home/<user>/.homeassistant/custom_components/smartthinq_sensors/__init__.py", line 501, in lge_devices_setup
    result = await hass.async_add_executor_job(dev.init_device)
  File "/usr/local/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/<user>/.homeassistant/custom_components/smartthinq_sensors/__init__.py", line 304, in init_device
    if self._device.init_device_info():
  File "/home/<user>/.homeassistant/custom_components/smartthinq_sensors/wideq/device.py", line 768, in init_device_info
    self._model_lang_pack = self._client.model_url_info(
  File "/home/<user>/.homeassistant/custom_components/smartthinq_sensors/wideq/core_v2.py", line 786, in model_url_info
    self._model_url_info[url] = self._load_json_info(url)
  File "/home/<user>/.homeassistant/custom_components/smartthinq_sensors/wideq/core_v2.py", line 759, in _load_json_info
    return requests.get(info_url, timeout=DEFAULT_TIMEOUT).json()
  File "/home/<user>/homeassistant/lib/python3.8/site-packages/requests/models.py", line 900, in json
    return complexjson.loads(self.text, **kwargs)
  File "/usr/local/lib/python3.8/json/__init__.py", line 337, in loads
    raise JSONDecodeError("Unexpected UTF-8 BOM (decode using utf-8-sig)",
json.decoder.JSONDecodeError: Unexpected UTF-8 BOM (decode using utf-8-sig): line 1 column 1 (char 0)

Expected behavior
I expect to have the component loaded correctly.

Additional context
I guess this is the file it try to read, but it's in UTF-8-BOM encoding.
MP_WM_WTWN3_LANG_EN-WW_VER_5.zip

[ollo69]

It was working before upgrading HA?
Can I have some more detail on your HA installation (core, HASSIO, etc...)?

[pedrofalmeida]

I'm using the HA core installed using venv (https://www.home-assistant.io/docs/installation/virtualenv/).
I reproduce the problem by installing in a clean RPi with python3.8.7, when I installed the version 2021.1.4 of HA it works like a charm, but when I upgraded it to the last HA version 2021.2.1 it stop working, give me the error of decoder.

[ollo69]

It is strange, doesn't seems that your file contain BOM prefix.
May be is an issue in request, don't know if last HA version update it.
I released a new beta beta version trying to fix this issue (v0.5.15b1), can you test?

[pedrofalmeida]

I install this version and it works fine! Thank you so much!