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Haskell: let square = map (^ 2) Real partial application and currying is something I'm longing for in other languages; it's easy to fall for the beauty of t

• icebraining 12y ago
  Well, in Python that would be: from functools import partial square = partial(map, lambda i: i**2) EDIT: I guess it's still not the same, since the lambda isn't a partial application. But I don't think we can just set the exponent in pow(), we need to create a function that takes the arguments in the reverse order. Maybe: from functools import wraps, partial def flip(func): 'Create a new function from the original with the arguments reversed' @wraps(func) def newfunc(*args): return func(*args[::-1]) return newfunc _pow = flip(pow) #Take Y, then X # Then the equivalent would be square = partial(map, partial(_pow, 2) Of course, flip is rather long-winded because it's a generic function, one could just do: _pow = lambda y, x: pow(x, y)