Hi Serhiy
Thank you for so clearly explaining how names get passed to function and
class constructors.
You also wrote:
> We do not have generalized way to call arbitrary constructor with
> automatically passing __name__, __qualname__ and __module__. And it would
> be convenient.
>
> create namedtuple Point(x, y, z=0)
> [further examples snipped]
We can already do something similar by writing (not tested)
class Point(Hack): namedtuple = lambda x, y, z=0: None
provided Hack has a suitable value.
I don't see a way to do much better than this, without introducing a new
language keyword. For example allow
signature(x, y, z=0)
to be an EXPRESSION that returns a function signature.
By the way,
class Point(Hack): def namedtuple(x, y, z=0): pass
gives a syntax error at 'def'.
--
Jonathan
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