Python interpreter being set to the Rhino executable path

Scripting
1

Hello,

I’m currently working with the Python 3 component in Grasshopper, but I’m facing an issue with the Python interpreter being set to the Rhino executable path (C:\Program Files\Rhino 8\System\Rhino.exe). This seems to cause problems when importing external libraries like numpy, as the interpreter doesn’t recognize the correct Python environment.

I would like to change the Python interpreter used by the Grasshopper Python 3 component to a specific Python environment located at:

‘C:\Users\come1.rhinocode\py39-rh8\python.exe’

Here are some details:

  • Current Python executable: C:\Program Files\Rhino 8\System\Rhino.exe
  • Desired Python executable: C:\Users\come1\.rhinocode\py39-rh8\python.exe
  • Problem: The current setup causes ImportError when trying to import numpy, likely because it is trying to use a source directory instead of the correct site-packages from the environment.

Additionally, I have already tried several methods to change the Python interpreter using GPT-assisted suggestions, such as:

  1. Modifying sys.executable or using os.environ["PYTHON_EXECUTABLE"].
  2. Adjusting sys.path to include the correct site-packages directory.
  3. Reinstalling numpy and other libraries in the Rhino Python environment.

Unfortunately, none of these approaches worked. The Python 3 component in Grasshopper continues to default to the Rhino executable, and the import issues persist.

Could you please guide me on:

  1. How to change the Python executable (sys.executable) used by the Python 3 component in Grasshopper?
  2. Ensuring the Python 3 component correctly uses libraries installed in C:\Users\come1\.rhinocode\py39-rh8\lib\site-packages?

Any insights or solutions would be greatly appreciated. Thank you so much for your help!

Best regards,

3

Hello and welcome to the community!

What is the specific error you are seeing with numpy? Also which version of Rhino are you using?