rr_python_utils not working with python 3.13

[Francois Lord]

Hi,

RR 9.1.27 now ships with libs for python 3.13, but it seems something was badly linked.

Running this in a python 3.13 interpreter 
python -c "from rr_python_utils.load_rrsubmit import rrSubmitLib"

gives this
16:29:42 | INFO:  RR source folder (\\nadlabnas\Logiciels\RoyalRender\bin\win64)
16:29:42 | INFO:  RR target folder (C:\Users\flord\AppData\Local\Temp\rrbin64_py)
16:29:42 | INFO:  Sync local folder C:\Users\flord\AppData\Local\Temp\rrbin64_py
16:29:42 | INFO:  added module path C:\Users\flord\AppData\Local\Temp\rrbin64_py
Traceback (most recent call last):
  File "<string>", line 1, in <module>
    from rr_python_utils.load_rrsubmit import rrSubmitLib
  File "\\nadlabnas\Logiciels\RoyalRender\SDK\External\Python\rr_python_utils\load_rrsubmit.py", line 40, in <module>
    import libpyRR313_submit as rrSubmitLib
ImportError: Module use of python311.dll conflicts with this version of Python.

A further verification with dumpbin shows the problem.

dumpbin /imports "$env:RR_ROOT\bin\win64\libpyRR313_submit.pyd" | Select-String python

→ python311.dll

file	date	size	imports	embedded version string
libpyRR313.pyd	2026-08-11 07:22	2 766 656	python311.dll	9.1.27
libpyRR313_datafiles.pyd	2026-08-11 07:22	1 679 168	python311.dll	9.1.27
libpyRR313_submit.pyd	2026-08-11 07:23	7 657 280	python311.dll	9.1.27
libpyRR311_submit.pyd	2026-08-05 12:06	7 733 568	python311.dll	9.1.25 (correct for 3.11)

The 3.13 binaries are distinct, newer files from the 3.11 ones (different sizes and dates), so they were rebuilt for this release, only the Python they link is wrong.

[RR, Schoenberger]

Hi

 

I found the issue in our Windows pipeline script.

It was fixed.

Please apply this quickfix:
www.RoyalRender.de/download/RoyalRender__9.1.27__updateFrom_9.1.27+.zip

 

 

regards,
Holger Schönberger

Craftsman and Keeper of the Royal Render Flame

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