[Python-ideas] Annotations (and static typing)

[Alexander Belopolsky]

On Wed, Aug 20, 2014 at 2:13 PM, Paul Moore <p.f.moore at gmail.com> wrote:

> On 20 August 2014 18:37, Andrea Censi <censi at mit.edu> wrote:
> > What can one do with a decorator that cannot be done with annotations?
>
> Python 2 compatibility.


Out of the way mark-up.  Compare


@types(int, float, returns=float)
def foo(x, y):
  ..

to

def foo(x:int, y:float) -> float:
  ..

The decorator variant is visually closer to plain unannotated Python.
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