Getting nested struct value from blueprint variables with python?

Development Pipeline & Plugins Editor Scripting
6

Thought I’d elaborate further for anyone googling:

I’m trying to write a python script that modifies the members of a user-created struct.

It seems you cannot accomplish this with blueprint-created structs. Attempting to do so always results in “Failed to find property” error.

However, doing this with C++ is trivial. For instance, say I created the following struct in C++:

USTRUCT(BlueprintType)
struct FItemTest
{
	GENERATED_BODY()

	UPROPERTY(EditAnywhere, BlueprintReadWrite)
	float FloatTest;

	UPROPERTY(EditAnywhere, BlueprintReadWrite)
	FString StringTest;
	
};

I add this struct to a blueprint class. Now, to modify the default value of the struct, I run the following python script:

import unreal
bp_object = unreal.EditorAssetLibrary.load_blueprint_class('/Game/ProjectName/Characters/NPC_Test')
bp_default_object = unreal.get_default_object(bp_object)
bp_default_object.get_editor_property("ItemTest").set_editor_property("FloatTest", 1)

This successfully modifies the “FloatTest” struct member and sets the value to 1.