The Houdini console is running in a loop constantly printing out error messages, so I had to suspend the process with process explorer to be able to take this screenshot:

https://i.imgur.com/yv7Kvgn.png [i.imgur.com]


"ImportError: Module use of python39.dll conflicts with this version of Python."

Do I need to configure Houdini to not install some python modules (if so, how?)? Do I need to manually install Python 2.7 from python.org and put it in my path?

I use Python 3.9 for development (maybe I should start using containers), so I would rather not uninstall it just to get Houdini running.

Houdini works with either python 2.7 or python 3.7, there are two separate installers to support either version.

updates? installed some pythons and started getting the error, remove the pythons and installed python 3.7.9 and still got the errors. I SOLVED IT by removing PYTHONPATH environment variables at the system level.

Hi, if anyone else stumbles upon this thread while trying to use the hou module (e.g. for headless processing) and running the script here https://www.sidefx.com/docs/houdini/hom/commandline.html [www.sidefx.com]

Try using the version of Python that's shipped with Houdini, for me on Windows it's '/c/Program Files/Side Effects Software/Houdini 19.5.303/python39/python3.9.exe'

Run the python script using this executable.