Calling python functions in R

I have a Python file that is part of my R project currently, named functions.py. Now I have a series of functions defined in that I would like to call. How would I pass arguments into Python when calling it from R?

It seems that if I use system('python functions.py hello world') it will call the file with arguments hello and world, but how do I then call a specific function while including further arguments?

Solution

Here is how you can use reticulate with arguments:

your python file called greeting.py

def greetings(name,time):
    print(f'Good {time.lower()} {name.upper()}')

Now source that into R:

reticulate::source_python('greeting.py')

Now run it just the normal way you would run a R function:

greetings('Biden','evening')
Good evening BIDEN