ModuleNotFoundError on ComfyUI v0.8+: hardcoded `custom_nodes.` prefix in py/defs/__init__.py breaks loading

[sunkai174634]

Bug Description

Extension fails to load on ComfyUI v0.8+ with:

ModuleNotFoundError: No module named 'custom_nodes.ComfyUI-SaveImageWithMetaData'

Root Cause

In py/defs/__init__.py, line 16, the module path is constructed with a hardcoded custom_nodes. prefix:

package_name = f"custom_nodes.ComfyUI-SaveImageWithMetaData.py.defs.ext.{module_name}"

This worked on older ComfyUI versions where the custom node root was implicitly custom_nodes/. In ComfyUI v0.8+, the module root is no longer prefixed with custom_nodes., causing importlib.import_module(package_name) to fail.

Fix

Remove the custom_nodes. prefix:

package_name = f"ComfyUI-SaveImageWithMetaData.py.defs.ext.{module_name}"

Environment

• ComfyUI v0.8.36 (bundled with ComfyUI Desktop on macOS)
• ComfyUI-SaveImageWithMetaData latest (cloned from git)

Reproduction

1. Clone ComfyUI-SaveImageWithMetaData to custom_nodes/
2. Launch ComfyUI v0.8+
3. Check comfyui.log — extension shows IMPORT FAILED