lazy loading for esp3 libs

grimmpp · May 17, 2024 · e52b662 · e52b662
1 parent 4a54e41
commit e52b662
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diff --git a/changes.md b/changes.md
@@ -2,6 +2,7 @@
 
 ## Version 1.4.4 
 * Thread sync clean up
+* Lazy loading for ESP3 libs to prevent dependency issues
 
 ## Version 1.4.3 Compatibility to HA 2024.5
 * 🐞 Incompatibility with HA 2024.5 fixed. (Cleaned up event loop synchronization)

diff --git a/custom_components/eltako/gateway.py b/custom_components/eltako/gateway.py
@@ -23,7 +23,6 @@
 
 from .const import *
 from . import config_helpers
-from esp2_gateway_adapter.esp3_serial_com import ESP3SerialCommunicator
 
 
 async def async_get_base_ids_of_registered_gateway(device_registry: DeviceRegistry) -> list[str]:
@@ -129,6 +128,8 @@ def _init_bus(self):
         if GatewayDeviceType.is_esp2_gateway(self.dev_type):
             self._bus = RS485SerialInterfaceV2(self.serial_path, baud_rate=self.baud_rate, callback=self._callback_receive_message_from_serial_bus)
         else:
+            # lazy import to avoid preloading library
+            from esp2_gateway_adapter.esp3_serial_com import ESP3SerialCommunicator
             self._bus = ESP3SerialCommunicator(filename=self.serial_path, callback=self._callback_receive_message_from_serial_bus, esp2_translation_enabled=True)
 
         self._bus.set_status_changed_handler(self._fire_connection_state_changed_event)