|
Python does have a "partial" function which does currying: from functools import partial
a |> partial(zip, b) |> partial(map, func1) |> partial(filter, func2) |> partial(forall, func3)
Obviously it's a bit more verbose than if the currying was done implicitly, but it's not too bad, I think. You could also import partial under a shorter name if you want.partial does have an advantage over implicit currying in that you can use keyword arguments to neatly curry on a parameter other than the first, although this isn't properly utilized by Python because most of the built-in functions have place-based rather than keyword arguments. In languages with implicit currying you have to use anonymous function expressions or functions like flip (flip(f, x, y) = f(y, x)) to deal with this. It might also be worth noting that |> doesn't essentially need to be an operator, it would just be syntactic sugar: def chain(x, *fs):
y = x
for f in fs:
y = f(x)
return y
chain(a, partial(zip, b), partial(map, func1), partial(filter, func2), partial(forall, func3))
Obviously having it as an infix operator is nicer, and produces less parentheses. |