Hardcoded os.path.dirname(__file__) paths fail in PyInstaller --onefile builds because __file__ points to source locations, not the temporary _MEIPASS extraction folder. This breaks ONNX model loading and config file access at runtime.

Changes

Core implementation

• Added resource_path() to src/utils/resource_manager.py that detects sys._MEIPASS and returns correct paths for both development and frozen modes
• Exported from src/utils/__init__.py

Model loading updates

• Updated 7 DLNode files to use resource_path() for all ONNX model paths:
  • node_classification.py (5 models)
  • node_object_detection.py (7 models)
  • node_semantic_segmentation.py (4 models)
  • node_pose_estimation.py (3 models)
  • node_face_detection.py (1 model)
  • node_low_light_image_enhancement.py (6 models)
  • node_monocular_depth_estimation.py (4 models)
• Fixed node/DLNode/object_detection/YOLOX/yolox.py to load coco_classes.txt using resource_path()

Documentation

• Added verification script verify_pyinstaller_portability.py
• Added English and French documentation

Example

Before:

_model_base_path = os.path.dirname(os.path.abspath(__file__)) + '/classification/'
model_path = _model_base_path + 'MobileNetV3/model/MobileNetV3Small.onnx'
# Fails in PyInstaller: points to source location, not _MEIPASS

After:

from src.utils import resource_path
model_path = resource_path('node/DLNode/classification/MobileNetV3/model/MobileNetV3Small.onnx')
# Works in both dev and frozen modes

The function automatically resolves to sys._MEIPASS when frozen, or project root in development. All 20+ ONNX models now load correctly in PyInstaller executables.

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.