ModuleNotFoundError: No module named 'utils.json_util'; 'utils' is not a package

[bozagina]

I've added these lines of code in comfyui_to_python.py:

but now：
(env) (base) PS D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension> python comfyui_to_python.py
current_dir:D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension
Traceback (most recent call last):
File "D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension\comfyui_to_python.py", line 649, in
main()
File "D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension\comfyui_to_python.py", line 643, in main
run(**vars(pargs))
File "D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension\comfyui_to_python.py", line 608, in run
ComfyUItoPython(
File "D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension\comfyui_to_python.py", line 552, in init
self.execute()
File "D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension\comfyui_to_python.py", line 562, in execute
import_custom_nodes()
File "D:\pinokio\api\comfy.git\app\custom_nodes\ComfyUI-to-Python-Extension\comfyui_to_python_utils.py", line 15, in import_custom_nodes
import server
File "D:\pinokio\api\comfy.git\app\server.py", line 34, in
from app.custom_node_manager import CustomNodeManager
File "D:\pinokio\api\comfy.git\app\app\custom_node_manager.py", line 18, in
from utils.json_util import merge_json_recursive
ModuleNotFoundError: No module named 'utils.json_util'; 'utils' is not a package

[bozagina]

[EvelinaAleksiutenko]

Same for me, unfortunately, it seems to be a comfyUI itself issue.

[babyta]

I have the same problem, is there any solution?

[webel]

Module Import Issue: ModuleNotFoundError: No module named 'utils.json_util'

Issue Summary

We encountered an issue where utils.json_util is not recognized as a module when running:

PYTHONPATH=/workspace/ComfyUI python3 -m custom_nodes.ComfyUI-to-Python-Extension.comfyui_to_python -f relighting_v6.json

Despite utils/ existing inside /workspace/ComfyUI/, Python fails to import it:

ModuleNotFoundError: No module named 'utils.json_util'; 'utils' is not a package

Adding debug logs shows /workspace/ComfyUI is in sys.path, and import utils.json_util works inside a Python shell, but the script still fails.

---

Steps Taken to Debug

1. Verified that /workspace/ComfyUI/utils/json_util.py exists and has an __init__.py.
2. Confirmed the import works manually in a Python shell:

   import utils.json_util
   print(utils.json_util)

3. Checked sys.path before failure and ensured /workspace/ComfyUI was included.
4. Manually forced /workspace/ComfyUI at the top of sys.path inside comfyui_to_python.py:

   import sys
   sys.path.insert(0, "/workspace/ComfyUI")

5. Removed /workspace/ComfyUI/comfy from sys.path, as it was interfering with imports.
6. Cleared all __pycache__ and .pyc files and restarted the environment:

   find /workspace/ComfyUI -name "__pycache__" -type d -exec rm -r {} +
   find /workspace/ComfyUI -name "*.pyc" -delete

---

Current Behavior

• Python still throws:

  ModuleNotFoundError: No module named 'utils.json_util'; 'utils' is not a package
  

  when running the script.
• However, import utils.json_util works in an interactive Python shell.

[babyta]

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[zhouyi531]

Try rename the folder 'utils' in ComfyUI folder to another one, e.g. 'utilities'.

'utils' may conflicts with utils.py in the comfyui folder.

Do remember do the ‘rename refactoring’, make sure references are renamed too.

[babyta]

Try rename the folder 'utils' in ComfyUI folder to another one, e.g. 'utilities'.

'utils' may conflicts with utils.py in the comfyui folder.

Do remember do the ‘rename refactoring’, make sure references are renamed too.
Good method, the test can pass, thank you

[webel]

that probably works given I've stumbled on the same issue earlier with restricted naming being used for directories, I ended up just copying over what I needed from utils.

[ianmage]

Same issue here.
And I suppose that the
sys.path.insert(0, ... in nodes.py
may cause a ambiguity between utils/ and comfy/utils.py

[colehank]

a simple alternative way: add the only function merge_json_recursive from ComfyUI/utils/json_util.py to ComfyUI/app/custom_node_manager.py, and comment out the import line from utils.json_util import merge_json_recursive