Tuya Energy Meter - Exception in async_write_ha_state when dispatching 'tuya_entry_update...'

[szilarddezso]

The problem

The following exception is thrown by official Tuya integration every ~10 seconds for Energy Meter Earu EAMPDW-TY-63C: Exception in _handle_state_update when dispatching 'tuya_entry_update_bfefb45bf23571af68ybma'

What version of Home Assistant Core has the issue?

core-2025.8.0

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Tuya

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tuya/

Diagnostics information

tuya-01JF7673R82DR76HNZ8FJRQ4ZY-Edesanya Energy-1f944ded7a6e48ae127d99d8da97e659.json

Example YAML snippet

Anything in the logs that might be useful for us?

Logger: homeassistant.util.logging
Source: util/logging.py:167
First occurred: 9:56:15 AM (708 occurrences)
Last logged: 9:15:03 PM

Exception in _handle_state_update when dispatching 'tuya_entry_update_bfefb45bf23571af68ybma': (['phase_a'],) Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/tuya/entity.py", line 176, in _handle_state_update self.async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1026, in async_write_ha_state self._async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1151, in _async_write_ha_state self.__async_calculate_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1088, in __async_calculate_state state = self._stringify_state(available) File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1032, in _stringify_state if (state := self.state) is None: ^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 548, in state value = self.native_value ^^^^^^^^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/tuya/sensor.py", line 1534, in native_value values = ElectricityTypeData.from_raw(value) File "/usr/src/homeassistant/homeassistant/components/tuya/models.py", line 119, in from_raw voltage = struct.unpack(">H", raw[0:2])[0] / 10.0 ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^ struct.error: unpack requires a buffer of 2 bytes
Exception in _handle_state_update when dispatching 'tuya_entry_update_bfefb45bf23571af68ybma': (['alarm_set_1'],) Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/tuya/entity.py", line 176, in _handle_state_update self.async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1026, in async_write_ha_state self._async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1151, in _async_write_ha_state self.__async_calculate_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1088, in __async_calculate_state state = self._stringify_state(available) File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1032, in _stringify_state if (state := self.state) is None: ^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 548, in state value = self.native_value ^^^^^^^^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/tuya/sensor.py", line 1534, in native_value values = ElectricityTypeData.from_raw(value) File "/usr/src/homeassistant/homeassistant/components/tuya/models.py", line 119, in from_raw voltage = struct.unpack(">H", raw[0:2])[0] / 10.0 ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^ struct.error: unpack requires a buffer of 2 bytes
Exception in _handle_state_update when dispatching 'tuya_entry_update_bfefb45bf23571af68ybma': (['alarm_set_2'],) Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/tuya/entity.py", line 176, in _handle_state_update self.async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1026, in async_write_ha_state self._async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1151, in _async_write_ha_state self.__async_calculate_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1088, in __async_calculate_state state = self._stringify_state(available) File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1032, in _stringify_state if (state := self.state) is None: ^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 548, in state value = self.native_value ^^^^^^^^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/tuya/sensor.py", line 1534, in native_value values = ElectricityTypeData.from_raw(value) File "/usr/src/homeassistant/homeassistant/components/tuya/models.py", line 119, in from_raw voltage = struct.unpack(">H", raw[0:2])[0] / 10.0 ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^ struct.error: unpack requires a buffer of 2 bytes
Exception in _handle_state_update when dispatching 'tuya_entry_update_bfefb45bf23571af68ybma': (['leakage_current'],) Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/tuya/entity.py", line 176, in _handle_state_update self.async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1026, in async_write_ha_state self._async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1151, in _async_write_ha_state self.__async_calculate_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1088, in __async_calculate_state state = self._stringify_state(available) File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1032, in _stringify_state if (state := self.state) is None: ^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 548, in state value = self.native_value ^^^^^^^^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/tuya/sensor.py", line 1534, in native_value values = ElectricityTypeData.from_raw(value) File "/usr/src/homeassistant/homeassistant/components/tuya/models.py", line 119, in from_raw voltage = struct.unpack(">H", raw[0:2])[0] / 10.0 ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^ struct.error: unpack requires a buffer of 2 bytes
Exception in _handle_state_update when dispatching 'tuya_entry_update_bfefb45bf23571af68ybma': (['total_forward_energy'],) Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/components/tuya/entity.py", line 176, in _handle_state_update self.async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1026, in async_write_ha_state self._async_write_ha_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1151, in _async_write_ha_state self.__async_calculate_state() ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1088, in __async_calculate_state state = self._stringify_state(available) File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 1032, in _stringify_state if (state := self.state) is None: ^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/sensor/__init__.py", line 548, in state value = self.native_value ^^^^^^^^^^^^^^^^^ File "/usr/src/homeassistant/homeassistant/components/tuya/sensor.py", line 1534, in native_value values = ElectricityTypeData.from_raw(value) File "/usr/src/homeassistant/homeassistant/components/tuya/models.py", line 119, in from_raw voltage = struct.unpack(">H", raw[0:2])[0] / 10.0 ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^ struct.error: unpack requires a buffer of 2 bytes

Additional information

No response

[home-assistant]

Hey there @tuya, @zlinoliver, mind taking a look at this issue as it has been labeled with an integration (tuya) you are listed as a code owner for? Thanks!

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[epenet]

Did it work in previous versions?

[szilarddezso]

@epenet Device was added recently so not sure... Important note which I forgot to mention is that most probably the device is sending some attributes which are not recognized by the integration, because known attributes (Phase A current, power, voltage and Total consumption) show up just fine. Just the problem is the logs are being flooded with this exception (every ~10 seconds an exception is logged)

[epenet]

Should be fixed with #150406 (hopefully in 2025.8.1)

[szilarddezso]

Cool! Thank you! Will close the issue then. Cheers!