Loading Python Script Crashes Orthanc

General
1

Hi!
I know that several topics have been created on this, and I believe I have attempted to follow all the suggestions they provided. However, I still cannot seem to load Python scripts for the life of me.
Please help me understand what I’m doing wrong.
Orthanc.json
image
jj.py is just rest.py from documentation
Logs:

W0301 10:56:09.152420 PluginsManager.cpp:261] Registering plugin ‘python’ (version mainline)
W0301 10:56:09.152420 PluginsManager.cpp:157] Python plugin is initializing
E0301 10:56:09.152420 PluginsManager.cpp:153] Inexistent directory for the Python script: C:\Program Files\Orthanc Server\jj.py
E0301 10:56:09.152420 PluginsManager.cpp:91] Error while initializing plugin C:\Program Files\Orthanc Server\Plugins\OrthancPython-Python3.11-mainline.dll (code -1)

image
image942×887 122 KB

image
image1116×583 29.5 KB

2

Hi,

It is not related to Python Path (note that the “Python.Path” configuration does not exist).

It’s just Orthanc that can not load the .py file → either it’s not there or it’s not accessible.

HTH,

Alain

3

Thanks for clarifying. I just added python.path as a last-ditch effort to provide a path hoping maybe that would help. Got the idea from this log

W0301 12:46:15.687176 PluginsManager.cpp:261] Registering plugin ‘python’ (version mainline)
W0301 12:46:15.687176 PluginsManager.cpp:157] Python plugin is initializing
W0301 12:46:15.687176 PluginsManager.cpp:157] Options “PythonScript” and “Python.Path” are not provided: Python scripting is disabled

The .py file is there and I have tried changing its name, location to different folders and drives thinking maybe it’s a permission issue but nothing works

5

What I learned:
The encountered issue stems from a dual setup of user and system-level site packages installations. When Orthanc crashes while loading a script, two logs are generated; examine the Python error logs for insights. The problem may arise from Orthanc’s search for packages in the system site-packages folder. One resolution is to run Orthanc at the user level, though challenges may be encountered. To address the issue, a workaround involves importing global packages first, then specifying the user-level site-packages folder location and importing the remaining packages. The provided code snippet demonstrates this approach:

import sys
import orthanc
sys.path.append(r’C:\Users\user\AppData\Roaming\Python\Python311\site-packages’)
from PIL import Image
import imagehash
import numpy as np

6

Hello,

For further reference, note that the Orthanc Book now contains information about working with Python virtual environments.

Kind Regards,
Sébastien-

1 Like