I think this has nothing to do with R or your IDE. You just need to configure correctly your python installation on your computer. Currently, I think there is something off.
I see you have anaconda so you could try conda environment, they are working better on windows PC.
https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html
The R package that connect to python has done this choice:
https://rstudio.github.io/reticulate/articles/python_packages.html
You can manage some python environment from R with those.
I would advice:
- Review your python installation
- try on a simple example to create a virtual env
- Maybe switch to conda env as you already use anaconda
There is no conflicts between R project and virtualenv python, you are currently no able because something is not right on your computer installation - hence the program not found.
Hope it helps