To load this dataset into pandas, do the following
import pandas as pd # you just use the same url as the table page onion_vox_pops = pd.read_csv("https://csvbase.com/calpaterson/onion-vox-pops", index_col="csvbase_row_id")
To load this dataset into R, do the following
# you just use the same url as the table page onion_vox_pops <- read.csv('https://csvbase.com/calpaterson/onion-vox-pops')