On 7 June 2016 at 11:29, M.-A. Lemburg firstname.lastname@example.org wrote:
One approach would be to define what a decorator means in front of an expression (since that's currently a SyntaxError), without adding any new syntactic sugar. Here's a sketch...
@decorator x = obj
x = obj decorator('x', obj, lineno)
As a possible guide to designing the signatures for binding decorators, it's probably worth asking what would be needed to make:
@bindfunction f = lambda : None
def f(): pass
Since the interpreter already sets __module__ and __globals__ correctly on lambda functions, the main considerations would be to get f.__name__ and f.__qualname__ set correctly, which means just the immediate target would be insufficient - you'd also want the scope naming information that gets included in __qualname__, but is omitted from __name__.