subframe

import bpy
bpy.context.scene.render.border_min_x = 0.2
bpy.context.scene.render.border_max_x = 0.4
bpy.context.scene.render.border_min_y = 0.4
bpy.context.scene.render.border_max_y = 0.6
bpy.context.scene.render.use_border = True

print('This is a testprint from the subframe.py file')


for scene in bpy.data.scenes:
    scene.render.tile_x = 32
    scene.render.tile_y = 32
    scene.cycles.tile_order = 'CENTER'
    scene.cycles.use_progressive_refine = False


def add_subframe_to_fo_path(scene):
    scene.node_tree.nodes['File Output'].base_path = '$OUTDIR'
    for file_slot in scene.node_tree.nodes['File Output'].file_slots:
        file_slot.path=file_slot.path + '_X-' + str(0.2) + '-' + str(0.4) + '-Y-' + str(0.4) + '-' + str(0.6)

bpy.app.handlers.render_pre.append(add_subframe_to_fo_path)