Batchdelivery addon with ModuleNotFoundError for lablib on farm

The “extract_ocio_config_publishing” plugin from the batchdelivery tool

is producing a ModuleNotFoundError on Deadline:

2026-06-30 19:46:49: 0: STDOUT: *** Failed to load 1 files
2026-06-30 19:46:49: 0: STDOUT: - C:\Users\mueller9\AppData\Local\Ynput\AYON\addons\batchdelivery_0.4.3\ayon_batchdelivery\plugins\publish\extract_ocio_config_publishing.py
2026-06-30 19:46:49: 0: STDOUT: **********
2026-06-30 19:46:49: 0: STDOUT: Traceback (most recent call last):
2026-06-30 19:46:49: 0: STDOUT: File "C:\Users\mueller9\AppData\Local\Ynput\AYON\addons\core_1.9.7\ayon_core\pipeline\publish\lib.py", line 403, in publish_plugins_discover
2026-06-30 19:46:49: 0: STDOUT: module = import_filepath(
2026-06-30 19:46:49: 0: STDOUT: File "C:\Users\mueller9\AppData\Local\Ynput\AYON\addons\core_1.9.7\ayon_core\lib\python_module_tools.py", line 45, in import_filepath
2026-06-30 19:46:49: 0: STDOUT: module_loader.exec_module(module)
2026-06-30 19:46:49: 0: STDOUT: File "<frozen importlib._bootstrap_external>", line 850, in exec_module
2026-06-30 19:46:49: 0: STDOUT: File "<frozen importlib._bootstrap>", line 228, in callwith_frames_removed
2026-06-30 19:46:49: 0: STDOUT: File "C:\Users\mueller9\AppData\Local\Ynput\AYON\addons\batchdelivery_0.4.3\ayon_batchdelivery\plugins\publish\extract_ocio_config_publishing.py", line 19, in <module>
2026-06-30 19:46:49: 0: STDOUT: import lablib
2026-06-30 19:46:49: 0: STDOUT: ModuleNotFoundError: No module named 'lablib'

It looks like lablib is shipped with the addon itself and not part of the dependency package.

However, this error does not seem to have a negative effect on the deadline job, in this case a farm publish from nuke.

I guess it has something to do with the fact that the sys path is modified on_host_install and therefore not being executed during a headless publish session on deadline.

Maybe this can be handled in a nicer way so we avoid the ModuleNotFoundError?

Or is this probably causing issues elsewhere?