[Python-3000] Warning for 2.6 and greater

[Georg Brandl]

Anthony Baxter schrieb:
> cc'ing python-dev - followups should probably go there, rather than 
> the p3yk list.
> 
> So here's my latest plan:

[...]

> Comments? What else should get warnings?

Previously, there was some talk about making these warnings guarded by
#ifs. Is that still an option?

I guess there are quite a few people who won't start moving to Python 3.0
with 2.6, or even when 3.1 is out, as long as their program works fine with
the 2.x line. There's no need to punish them with extra overhead.

cheers,
Georg