Initalize block as the complete type rather than an empty dict

Co-Authored-By: jan iversen <[email protected]>

Author: alexrudd2

pymodbus/datastore/store.py

@@ -51,7 +51,7 @@
 # ---------------------------------------------------------------------------#
 #  Datablock Storage
 # ---------------------------------------------------------------------------#
-class BaseModbusDataBlock:
+class BaseModbusDataBlock(dict):
     """Base class for a modbus datastore
 
     Derived classes must create the following fields:
@@ -72,16 +72,12 @@ def default(self, count, value=False):
         :param value: The default value to set to the fields
         """
         self.default_value = value  # pylint: disable=attribute-defined-outside-init
-        self.values = [  # pylint: disable=attribute-defined-outside-init
-            self.default_value
-        ] * count
+        self.values = [self.default_value] * count
         self.address = 0x00  # pylint: disable=attribute-defined-outside-init
 
     def reset(self):
         """Reset the datastore to the initialized default value."""
-        self.values = [  # pylint: disable=attribute-defined-outside-init
-            self.default_value
-        ] * len(self.values)
+        self.values = [self.default_value] * len(self.values)
 
     def validate(self, address, count=1):
         """Check to see if the request is in range.

pymodbus/server/reactive/main.py

@@ -415,7 +415,7 @@ def create_context(
             unit = [unit]
         slaves = {}
         for i in unit:
-            block = {}
+            block = BaseModbusDataBlock()
             for modbus_entity, block_desc in data_block.items():
                 start_address = block_desc.get("block_start", 0)
                 default_count = block_desc.get("block_size", 0)