Module 'pluggy' not found

[farhills]

This is more likely a support request, but I don't know a better place to ask.

I'm on NC 25.0.3; Workflow_OCR 1.25.3

Docker environment, alpine linux (Linuxserver container : latest)

I have ocrmypdf correctly installed in the container. Confirmed by running ocrmypdf -v --redo-ocr test.pdf output.pdf from a user folder, executed within the container. A new copy of the file is correctly generated with the OCR layer added.

When running via cron, there is an error with the 'pluggy' module not found. I'm guessing this has something to do with the docker environment, and files not being located where expected. But I've reached the end of my capability to investigate.

Excerpt:
[...]File \"/usr/lib/python3.9/site-packages/ocrmypdf/__init__.py\", line 8, in <module>\n from pluggy import HookimplMarker as _HookimplMarker\nModuleNotFoundError: No module named 'pluggy',[...]

Full Log:

{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"CLI cron call has selected job with ID 12930","userAgent":"--","version":"25.0.3.2","data":{"app":"cron"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Run OCA\\WorkflowOcr\\BackgroundJobs\\ProcessFileJob job with ID 12930","userAgent":"--","version":"25.0.3.2","data":{"app":"cron"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"workflow_ocr","method":"","url":"--","message":"STARTED -- Run OCA\\WorkflowOcr\\BackgroundJobs\\ProcessFileJob job. Argument: {\"filePath\":\"/[user redacted]/files/Misc-JD/OCR-Testing/iiiii - Copy - Copy - Copy.pdf\",\"settings\":\"{\\\"languages\\\":[\\\"eng\\\"],\\\"ocrMode\\\":1,\\\"removeBackground\\\":false}\"}.","userAgent":"--","version":"25.0.3.2","data":{"app":"workflow_ocr"}}
{"reqId":"D8cLtcf6aEPvaG4LYxOf","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"[user local IP]","user":"[user redacted]","app":"metadata","method":"GET","url":"/apps/logreader/poll?lastReqId=bJn6LLHkWJKCPFrSAxZz","message":"/appinfo/app.php is deprecated, use \\OCP\\AppFramework\\Bootstrap\\IBootstrap on the application class instead.","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36","version":"25.0.3.2","data":{"app":"metadata"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"[user redacted]","app":"workflow_ocr","method":"","url":"--","message":"Running command: ocrmypdf -q --redo-ocr -l eng --sidecar /tmp/oc_tmp_okdJpH-.sidecar - - | cat","userAgent":"--","version":"25.0.3.2","data":{"app":"workflow_ocr"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":2,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"[user redacted]","app":"workflow_ocr","method":"","url":"--","message":"OCRmyPDF succeeded with warning(s): Traceback (most recent call last):\n  File \"/usr/bin/ocrmypdf\", line 33, in <module>\n    sys.exit(load_entry_point('ocrmypdf==12.7.1', 'console_scripts', 'ocrmypdf')())\n  File \"/usr/bin/ocrmypdf\", line 25, in importlib_load_entry_point\n    return next(matches).load()\n  File \"/usr/lib/python3.9/importlib/metadata.py\", line 86, in load\n    module = import_module(match.group('module'))\n  File \"/usr/lib/python3.9/importlib/__init__.py\", line 127, in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\n  File \"<frozen importlib._bootstrap>\", line 1030, in _gcd_import\n  File \"<frozen importlib._bootstrap>\", line 1007, in _find_and_load\n  File \"<frozen importlib._bootstrap>\", line 972, in _find_and_load_unlocked\n  File \"<frozen importlib._bootstrap>\", line 228, in _call_with_frames_removed\n  File \"<frozen importlib._bootstrap>\", line 1030, in _gcd_import\n  File \"<frozen importlib._bootstrap>\", line 1007, in _find_and_load\n  File \"<frozen importlib._bootstrap>\", line 986, in _find_and_load_unlocked\n  File \"<frozen importlib._bootstrap>\", line 680, in _load_unlocked\n  File \"<frozen importlib._bootstrap_external>\", line 850, in exec_module\n  File \"<frozen importlib._bootstrap>\", line 228, in _call_with_frames_removed\n  File \"/usr/lib/python3.9/site-packages/ocrmypdf/__init__.py\", line 8, in <module>\n    from pluggy import HookimplMarker as _HookimplMarker\nModuleNotFoundError: No module named 'pluggy', ","userAgent":"--","version":"25.0.3.2","data":{"app":"workflow_ocr"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":3,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"[user redacted]","app":"workflow_ocr","method":"","url":"--","message":"OCR for file /[user redacted]/files/Misc-JD/OCR-Testing/iiiii - Copy - Copy - Copy.pdf not possible. Message: OCRmyPDF did not produce any output","userAgent":"--","version":"25.0.3.2","data":{"app":"workflow_ocr"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"workflow_ocr","method":"","url":"--","message":"ENDED -- Run OCA\\WorkflowOcr\\BackgroundJobs\\ProcessFileJob job. Argument: {\"filePath\":\"/[user redacted]/files/Misc-JD/OCR-Testing/iiiii - Copy - Copy - Copy.pdf\",\"settings\":\"{\\\"languages\\\":[\\\"eng\\\"],\\\"ocrMode\\\":1,\\\"removeBackground\\\":false}\"}.","userAgent":"--","version":"25.0.3.2","data":{"app":"workflow_ocr"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Finished OCA\\WorkflowOcr\\BackgroundJobs\\ProcessFileJob job with ID 12930 in 0 seconds","userAgent":"--","version":"25.0.3.2","data":{"app":"cron"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"CLI cron call has selected job with ID 12931","userAgent":"--","version":"25.0.3.2","data":{"app":"cron"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Run OCA\\DAV\\BackgroundJob\\UploadCleanup job with ID 12931","userAgent":"--","version":"25.0.3.2","data":{"app":"cron"}}
{"reqId":"zo00fPcm1UTyaxeOOfXe","level":0,"time":"2023-01-30T22:02:30+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"Finished OCA\\DAV\\BackgroundJob\\UploadCleanup job with ID 12931 in 0 seconds","userAgent":"--","version":"25.0.3.2","data":{"app":"cron"}}

Any suggestions/help would be much appreciated! Thx