Operator tooltip based on EnumProperty

Archive Python API
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1

Hey, quick question on learning “the Blender way” of doing things.

I’m creating an operator which uses an EnumProperty called “action” to change its behavior. To improve usability, I wanted to implement the operator’s description function. It should take the value of “action” and use its description as the operator’s tooltip.

Here’s what I came up with (irrelevant parts omitted):

class OBJECT_OT_test(Operator):
    action: EnumProperty(items=(
        ('ADD', "Add", "Adds a new item"),
        ('REMOVE', "Remove", "Removes an item"),
        ('GOTO', "Go to", "Go to an item")
    ))

    @classmethod
    def description(cls, context, properties):
        for action in cls.__annotations__["action"][1]["items"]:
            if action[0] == properties.action:
                return action[2]
        return None

But my solution feels incredibly hacky and could easily break (I don’t even know why the [1] is needed, honestly). While it does work like expected, does anyone know of a nicer solution?
Of course I’d like a solution that doesn’t require you to duplicate the enum descriptions into another dictionary or the like.

So in my example: what’s a nicer way to convert a string like 'ADD' to its description "Adds a new item"?

Thanks a lot in advance! :slight_smile: