Вот вариант с pyper
import pandas as pd
from siuba.data import mtcars
from pyper import *
r = R(use_pandas=True)
df = mtcars.copy(deep=True)
r.assign("rdf", df)
r.get("head(rdf, 2)")
# mpg cyl disp hp drat wt qsec vs am gear carb
#0 21.0 6 160.0 110 3.9 2.620 16.46 0 1 4 4
#1 21.0 6 160.0 110 3.9 2.875 17.02 0 1 4 4