use_python: Configure which version of Python to use
In Mormukut11/R-interface-to-Python: Interface to 'Python'

Configure which version of Python to use

use_python(python, required = FALSE)

use_virtualenv(virtualenv, required = FALSE)

use_condaenv(condaenv, conda = "auto", required = FALSE)

`python`	Path to Python binary
`required`	Is this version of Python required? If `TRUE` then an error occurs if it's not located. Otherwise, the version is taken as a hint only and scanning for other versions will still proceed.
`virtualenv`	Directory of Python virtualenv
`condaenv`	Name of Conda environment
`conda`	Conda executable. Default is `"auto"`, which checks the `PATH` as well as other standard locations for Anaconda installations.