make iterations into keyframes #blender #bpy

keyframe-iterations.py

import re
import bpy

iteration_items = []
for item in bpy.data.objects:
    if 'Block__Iteration' in item.name_full:
        iteration_items.append(item)
prev_name = None
frame_index = -1
for j in range(50):
    for i, item in enumerate(iteration_items):
        item.hide_viewport = item.hide_render = True
        item.keyframe_insert('hide_viewport', frame=j, options={'INSERTKEY_REPLACE'})
        item.keyframe_insert('hide_render', frame=j, options={'INSERTKEY_REPLACE'})

for i, item in enumerate(iteration_items):
    pattern = r'\.\d+'
    item_name = re.sub(pattern, '', item.name_full)
    if item_name != prev_name:
        frame_index = frame_index + 1
    item.hide_viewport = item.hide_render = False
    item.keyframe_insert('hide_viewport', frame=frame_index, options={'INSERTKEY_REPLACE'})
    item.keyframe_insert('hide_render', frame=frame_index, options={'INSERTKEY_REPLACE'})
    prev_name = item_name