[Python-Dev] Re: Stability and change

[Fredrik Lundh]

Guido wrote:

> I'd be *very* surprised that a "mere" 10K lines of extension code
> would require significant work to keep it working under 2.2.  I don't
> know where you get this idea, but Python's C API is actually quite
> stable, and more often than not, no changes are necessary to keep
> 1.5.2 code conformant with 2.2, or the changes are limited to 1 or 2
> lines per file.

fwiw, I cannot recall ever having to change anything on the C API
level when upgrading (and we're talking 100k's of lines here, starting
at Python 1.2)

downgrading is a different story (we generally support everything from
1.5.2 and upwards), but it usually only takes an #if PY_VERSION_HEX
or two to fix that.

</F>