[Python-Dev] Extended Function syntax

[Greg Ewing]

Martin Loewis:

> Is that a dislike towards the notation, or towards the
> implementation strategy.

The notation is the important thing to get right, I
suppose, since the implementation can be changed if
need be.

> there is a clean implementation for it, too (just provide the filter
> with a reference to the namespace-under-construction).

Yes, I can see that now (I was thinking that the property
mechanism itself would need changing, but it wouldn't).

But even so, I don't think it really works all that well
for properties. There would be something distinctly odd
about writing this sort of thing:

  def foo(self) [get_property]:
    ...

  def foo(self, x) [set_property]:
    ...

because it looks like you're defining two things both called
"foo". There would be too much hidden magic going on there for my
taste.

I've just had another thought: This would also make it hard
to do a text-editor search to answer questions such as
"where is the get-function for the foo property defined".
With my proposal you could search for "def foo.get".

Greg Ewing, Computer Science Dept, +--------------------------------------+
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