Execute Node Tree from a bpy script outside animation nodes

Question

I want to iterate the Animation Nodes Node Trees in my current scene, and for each Node Tree, I want to execute it as if by clicking the Execute Node Tree button. When I click the button manually, I don't see any output in the Python console for this button, so I'm not sure where to begin.

Answer 1

Find AN node tree and execute():

import bpy

anTreeNames = ["NodeTree", "NodeTree.001"]

for name in anTreeNames:
    tree = bpy.data.node_groups.get(name)
    if tree:
        tree.execute()