[Python-Dev] Policy for making changes to the AST

[Brett Cannon]

On Sat, Apr 2, 2011 at 23:55, "Martin v. Löwis" <martin at v.loewis.de> wrote:

> > 1. Do nothing. This will break code that currently uses AST, but doesn't
> add
> > any complexity to cpython.
>
> I'm in favor of this approach as well. Notice that there is
> ast.__version__ precisely so that applications can support multiple AST
> versions.
>

As someone who actually does use the AST (http://code.google.com/p/mnfy/), I
am in favour of #1 thanks to ast.__version__. I actually have a version
check in my code to make sure that if a change occurs my tests fail and I
know I need to update things.


>
> Regards,
> Martin
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