addded network singleton

pyproject.toml

@@ -1,22 +1,13 @@
 [project]
 name = "xerxes-protocol"
-version = "1.4.4"
+version = "1.4.5"
 description = "Python implementation for xerxes-protocol"
 readme = "README.md"
 requires-python = ">=3.8"
-license = {file = "LICENSE"}
-authors = [
-    {name = "Stanislav Rubint", email = "stanislav@rubint.sk"}
-]
-dependencies = [
-    "pyserial",
-    "pytest",
-    "rich", 
-    "coverage"
-]
-keywords = [
-    "xerxes"
-]
+license = { file = "LICENSE" }
+authors = [{ name = "Stanislav Rubint", email = "stanislav@rubint.sk" }]
+dependencies = ["pyserial", "pytest", "rich", "coverage"]
+keywords = ["xerxes"]
 
 [project.urls]
 homepage = "http://metrotech.sk"
@@ -30,4 +21,4 @@ requires = ["setuptools>=61.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools.dynamic]
-classifiers = {file = "setup.cfg"}
+classifiers = { file = "setup.cfg" }

setup.py

@@ -6,7 +6,7 @@
 
 setuptools.setup(
     name="xerxes-protocol",
-    version="1.4.4",
+    version="1.4.5",
     author="Stanislav Rubint",
     author_email="stanislav@rubint.sk",
     description="Python implementation for xerxes-protocol",

xerxes_protocol/__init__.py

@@ -14,32 +14,33 @@
     LeafData,
     LeafConfig,
     WriteError,
-    WriteErrorReadOnly
+    WriteErrorReadOnly,
 )
 
 from xerxes_protocol.hierarchy.root import XerxesRoot  # noqa: F401
 
 from xerxes_protocol.network import (
     XerxesNetwork,
+    XerxesNetworkSingleton,
     Addr,
     XerxesPingReply,
     XerxesMessage,
     ChecksumError,
     MessageIncomplete,
     InvalidMessage,
     NetworkError,
-    checksum
+    checksum,
 )
 from xerxes_protocol.ids import (
     MsgIdMixin,
     MsgId,
     DevId,
     DevIdMixin,
-    MAGIC_UNLOCK
+    MAGIC_UNLOCK,
 )
 from xerxes_protocol.defaults import (
     PROTOCOL_VERSION_MAJOR,
-    PROTOCOL_VERSION_MINOR
+    PROTOCOL_VERSION_MINOR,
 )
 from xerxes_protocol.memory import (
     ElementType,
@@ -53,14 +54,14 @@
     MemoryNonVolatile,
     MemoryVolatile,
     MemoryReadOnly,
-    XerxesMemoryMap
+    XerxesMemoryMap,
 )
 from xerxes_protocol.error_flags import (
     ERROR_MASK_UART_OVERLOAD,
     ERROR_MASK_CPU_OVERLOAD,
     ERROR_MASK_BUS_COLLISION,
     ERROR_MASK_WATCHDOG_TIMEOUT,
-    ERROR_MASK_SENSOR_OVERLOAD
+    ERROR_MASK_SENSOR_OVERLOAD,
 )
 
 from xerxes_protocol.debug_serial import DebugSerial

xerxes_protocol/hierarchy/root.py

@@ -192,3 +192,34 @@ def isPingLatest(pingPacket: XerxesPingReply) -> bool:
             and pingPacket.v_min == PROTOCOL_VERSION_MINOR
             and pingPacket.dev_id != DevId.NULL
         )
+
+
+class XerxesRootSingleton:
+    """Singleton class for XerxesRoot.
+
+    This class is a singleton for the XerxesRoot class. It is used to create
+    only one instance of the XerxesRoot class.
+
+    Args:
+        my_addr (Union[Addr, int, bytes]): The address of this node.
+        network (XerxesNetwork): The network to use.
+
+    Attributes:
+        _instance (XerxesRoot): The instance of the XerxesRoot class.
+    """
+
+    _instance = None
+
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = XerxesRoot(*args, **kwargs)
+        return cls._instance
+
+    def __getattr__(self, name):
+        return getattr(self._instance, name)
+
+    def __setattr__(self, name, value):
+        return setattr(self._instance, name, value)
+
+    def __delattr__(self, name):
+        return delattr(self._instance, name)