Made HW3(some part)

equipment/turtle_device.py

@@ -1,8 +0,0 @@
-from turtle import Turtle
-from controls.device import SynchronyDevice
-
-class TurtleDevice(SynchronyDevice):
-    pass  # TODO(Homework #3)
-
-
-

scada_system/controls/device.py

@@ -1,9 +1,12 @@
 from dataclasses import dataclass
 from typing import Optional, Collection, Any
-from abc import abstractmethod
+from abc import ABCMeta, abstractmethod
+from enum import Enum
 
-class DeviceLifecycleState:
+class DeviceLifecycleState(Enum):
-    pass  # TODO(Homework #3)
+    INIT = "INIT"
+    OPEN = "OPEN"
+    CLOSE = "CLOSE"
 
 
 class DevaceError(Exception):
@@ -33,8 +36,7 @@ class ActionDescriptor:
     info: Optional[str] = None
 
 
-class Device:
+class Device(metaclass=ABCMeta):
-    # TODO(Homework #3)
     _state = DeviceLifecycleState.INIT
 
     @property
@@ -44,9 +46,13 @@ class Device:
     def close(self):
         self._state = DeviceLifecycleState.CLOSE
 
+    @property
+    @abstractmethod
     def trait_descriptors(self) -> Collection[TraitDescriptor]:
         pass
     
+    @property
+    @abstractmethod
     def action_descriptors(self) -> Collection[ActionDescriptor]:
         pass
 

scada_system/equipment/turtle_device.py

@@ -0,0 +1,40 @@
+import turtle
+from typing import Optional, Collection, Any
+from controls.device import SynchronyDevice
+import time
+import inspect
+
+class TurtleDevice(SynchronyDevice): 
+    def open(self):
+        super().open()
+        turtle.Turtle()
+    
+    def close(self):
+        super().close()
+        turtle.bye()  
+        
+    def execute(self, action_name: str, *args, **kwargs):
+        getattr(turtle, action_name)(args[0], *kwargs)
+        
+    def read(self, trait_name: str):
+        pass
+
+    def write(self, trait_name: str, value: Any) -> bool:
+        pass
+
+    def invalidate(self, trait_name: str):
+        pass
+
+    def trait_descriptors(self):
+        traits = [attr for attr in turtle.Turtle.__dict__
+                      if attr.startswith('__') and not attr.startswith('_')]
+        return traits
+    
+    def action_descriptors(self):
+        actions = [(name, func.__doc__) for name, func in inspect.getmembers(turtle.Turtle)
+                   if callable(func) and not name.startswith('__') and not name.startswith('_')]
+        return actions
+
+    def __getitem__(self, trait_name: str):
+        """Return logical state of trait `trait_name`."""
+        pass