On Tue, Oct 6, 2020 at 9:49 PM Random832 <[email protected]> wrote:
> On Tue, Oct 6, 2020, at 02:50, Alperen Keleş wrote:
> > I think a class type such as "@functionclass" may be helpful for
> > creating functions intended to keep a list of methods in a scope.
> >
> > At the moment, I achieved this via writing "@classmethod" to all my
> > functions but I think such a decorator might help clarify intent for
> > the reader and ease the programmers' job.
>
> I think new syntax would be better than a decorator (or a metaclass, which
> for some reason never seems to get suggested for these things),
I think maybe discussion of the general namespace idea might be a little
off topic for this read (per Guido's comments).
However the metaclass below-- or something like it-- could still help with
the problem? It was actually my attempt at a general namespace object in
the previous namespace thread. It seemed to work ok, and it should work in
this use case:
import types
class namespace(type):
def __new__(mcls, name, bases, dct):
if bases:
raise TypeError("this is a namespace, not a class.")
mod = types.ModuleType(dct.pop("__qualname__"), dct.pop("__doc__",None))
mod.__dict__.update(dct)
return mod
class ns(metaclass=namespace):
class Desc:
def __get__(self, obj, cls):
return None
d = Desc()
if __name__=="__main__":
assert ns.d # success: descriptor protocol broken as expected
But there are probably deficiencies I have not uncovered.
---
Ricky.
"I've never met a Kentucky man who wasn't either thinking about going home
or actually going home." - Happy Chandler
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