[Python-ideas] Language "macros" in discussions

[Christian Tismer]

Clarification:

I have a tendency to mention constructs
from other threads in a discussion. 
This might suggest that I'm propose
using this not-yet-included or even 
accepted feature as a solution. For instance
Guido's reaction to my last message
might be an indicator of misinterpreting
this, although I'm not sure if I was
Prinarily addressed at all (despite that the to/cc
suggested it). 

Anyway, I just want to make sure:

If I'm mentioning stackless or codef
or greenlet, this does not imply that I
propose to code the solution to async
by implementing such a thing, first. 
The opposite is true. 

I mean such meantioning more like
a macro-like feature: 
I'm implementing structures using the existing
things, but adhere to a coding style
that stays compatible to one of the mentioned
principles. 

This is like a macro feature of my brain
- I talk about codef, but code it using
yield-from. 

So please don't take me wrong that I
want to push for features to be
included. This is only virtual. I use yield
constructs, but obey the codef protocol,
for instance. 

And as an addition: when I'm talking
of generators implemented by yield from,
then this is just a generator that can
yield from any of its sub-functions. 

I am not talking about tasks or schedulars. 
These constructs do not belong there. 
I'm strongly against using "yield from"
for this. 
It is a building block for generatos
resp. coroutines, and there it stops !

Higher level stuff should by no means
use those primitives at all. 

Sent from my Ei4Steve