如何在 Coconut 中一个接一个地实现两种方法

Question

Example provided in coconut documentation

obj |> .attribute |> .method(args) |> func$(args) |> .[index]

However i would like to know how can we apply two methods one after the other that do not return anything, they just modify the object

For example:

Coconut

(
    data
    |> Model
    |> .fit()      # does not return anything
    |> .summary()  # therefore, this throws an error
)

Python

m = Model()
m.fit()
m.summary()

Answer 1

If you really want to use pipes for this, you can use a statement lambda to do

m = (
    data
    |> Model
    |> (def m -> m.fit(); m)
    |> .summary()
)

though the Python code will also work in Coconut just fine.