Minor fix

hue_controller.py

@@ -126,11 +126,14 @@ class controller:
             print("Error: Light index '" + str(index) + "' out of range")
 
     def setPreset( presetID:str, index:int=-1 ):
-        if( index == -1 ):
-            for key in LIGHTS:
-                controller.setLightPreset( key, presetID )
+        if( PRESETS.get(presetID) ):
+            if( index == -1 ):
+                for key in LIGHTS:
+                    controller.setLightPreset( key, presetID )
+            else:
+                controller.setLightPreset( index, presetID )
         else:
-            controller.setLightPreset( index, presetID )
+            print("Error: Unknown preset '" + presetID + "'")
 
     def countLights():
         return len(LIGHTS)

hue_remote.py

@@ -81,8 +81,9 @@ def parseCommand( cmd:list, pos:int, i=-1 ):
                     return
         help() # display help if function did nothing
 
-    except (RuntimeError, TypeError, NameError, IndexError):
+    except (RuntimeError, TypeError, NameError, IndexError) as err:
         help() # display the help page if parameters are missing (it will give out an IndexError)
+        print( "\n\nError: " + str(err) )
 
 
 def parseCommandline():