24  Nothing runs until you ask

A verb does not return a table. It returns a pipeline, which is a plan for one.

R

answer <- sales |> keep(region == "West") |> take(2)
class(answer)

[1] "god_pipeline"

Python

answer = sales >> keep(col.region == "West") >> take(2)
type(answer).__name__

'Pipeline'

Printing it runs it, which is why every example so far shows a table. When you want the table itself, ask for it with collect.

R

nrow(collect(answer))

[1] 2

Python

len(collect(answer))

2

In R this matters for more than speed. sort and keep are names other packages use too, and a pipeline handed to the wrong sort has no meaning there, so it stops instead of returning a plausible answer.

You can also see what the verbs wrote, which is the text form, and it is the same sentence in both languages.

R

cat(format(sales |> keep(region == "West") |> take(10)))

sales
  then keep where ([region] is "West")
  then take 10

Python

print((sales >> keep(col.region == "West") >> take(10)).written())

sales
  then keep where ([region] is "West")
  then take 10