Blender API : show list of available entries of a built-in enum property

Question

This might be a noob question but I am trying to understand something regarding blender's api.

I was writing a script that part of it was to change the renderer to cycles, I was able to do that using bpy.data.scenes['Scene'].render.engine = 'CYCLES'

my question is: is there a way to see all the other variables I can use (like 'BLENDER_EEVEE' or 'BLENDER_WORKBENCH') without using blender's info workspace?

e.g.

is it in the code itself or in the documentation? I can't seem to find it anywhere.

this might seems a bit silly for advanced users but I think it is a valid question. Thanks.

Answer 1

An easy way:

If you assign something that does not match ("XXX"), you'll have the list of available values.

Answer 2

To iterate on lemon's answer, here's an extremely hacky way to get the enum entries as strings :

import bpy

try:
    bpy.context.scene.render.engine = ""
except Exception as e:
    # TypeError: bpy_struct: item.attr = val: enum "" not found in ('BLENDER_EEVEE', 'BLENDER_WORKBENCH', 'CYCLES')
    # Parse the error, split the string and take every other result
    results = str(e).split("'")[1::2]
    print(results)

or as a function

import bpy


def enum_entries(data_name, data_prop_name):
    try:
        setattr(data_name, data_prop_name, "")
    except Exception as e:
        return str(e).split("'")[1::2]

print(enum_entries(bpy.context.scene.render, "engine"))