small examples update

examples/example-client-minimal.py

-import sys
-sys.path.insert(0, "..")
-
-
-from opcua import Client
-
-
-if __name__ == "__main__":
-
-    client = Client("opc.tcp://localhost:4841/freeopcua/server/")
-    # client = Client("opc.tcp://admin@localhost:4841/freeopcua/server/") #connect using a user
-    try:
-        client.connect()
-
-        # Client has a few methods to get proxy to UA nodes that should always be in address space such as Root or Objects
-        root = client.get_root_node()
-        print("Objects node is: ", root)
-
-        # Node objects have methods to read and write node attributes as well as browse or populate address space
-        print("Children of root are: ", root.get_children())
-
-        # get a specific node knowing its node id
-        #var = client.get_node(ua.NodeId(1002, 2))
-        #var = client.get_node("ns=3;i=2002")
-        #print(var)
-        #var.get_data_value() # get value of node as a DataValue object
-        #var.get_value() # get value of node as a python builtin
-        #var.set_value(ua.Variant([23], ua.VariantType.Int64)) #set node value using explicit data type
-        #var.set_value(3.9) # set node value using implicit data type
-
-        # Now getting a variable node using its browse path
-        myvar = root.get_child(["0:Objects", "2:MyObject", "2:MyVariable"])
-        obj = root.get_child(["0:Objects", "2:MyObject"])
-        print("myvar is: ", myvar)
-
-    finally:
-        client.disconnect()

examples/example-server-methods.py

@@ -14,7 +14,7 @@ except ImportError:
         shell.interact()
 
 
-from opcua import ua, uamethod, Server, Event, ObjectIds
+from opcua import ua, uamethod, Server, Event
 
 # method to be exposed through server
 
@@ -73,34 +73,25 @@ if __name__ == "__main__":
 
     inargx = ua.Argument()
     inargx.Name = "x"
-    inargx.DataType = ua.NodeId(ObjectIds.Int64)
+    inargx.DataType = ua.NodeId(ua.ObjectIds.Int64)
     inargx.ValueRank = -1
     inargx.ArrayDimensions = []
     inargx.Description = ua.LocalizedText("First number x")
     inargy = ua.Argument()
     inargy.Name = "y"
-    inargy.DataType = ua.NodeId(ObjectIds.Int64)
+    inargy.DataType = ua.NodeId(ua.ObjectIds.Int64)
     inargy.ValueRank = -1
     inargy.ArrayDimensions = []
     inargy.Description = ua.LocalizedText("Second number y")
     outarg = ua.Argument()
     outarg.Name = "Result"
-    outarg.DataType = ua.NodeId(ObjectIds.Int64)
+    outarg.DataType = ua.NodeId(ua.ObjectIds.Int64)
     outarg.ValueRank = -1
     outarg.ArrayDimensions = []
     outarg.Description = ua.LocalizedText("Multiplication result")
 
     multiply_node = myobj.add_method(idx, "multiply", multiply, [inargx, inargy], [outarg])
 
-    # import some nodes from xml
-    server.import_xml("custom_nodes.xml")
-
-    # creating an event object
-    # The event object automatically will have members for all events properties
-    myevent = server.get_event_object(ObjectIds.BaseEventType)
-    myevent.Message.Text = "This is my event"
-    myevent.Severity = 300
-
     # starting!
     server.start()
     print("Available loggers are: ", logging.Logger.manager.loggerDict.keys())

examples/example-server.py

@@ -14,7 +14,7 @@ except ImportError:
         shell.interact()
 
 
-from opcua import ua, uamethod, Server, Event, ObjectIds
+from opcua import ua, uamethod, Server, Event 
 
 
 class SubHandler(object):
@@ -92,7 +92,7 @@ if __name__ == "__main__":
 
     # creating an event object
     # The event object automatically will have members for all events properties
-    myevent = server.get_event_object(ObjectIds.BaseEventType)
+    myevent = server.get_event_object(ua.ObjectIds.BaseEventType)
     myevent.Message.Text = "This is my event"
     myevent.Severity = 300