from __future__ import decorators

[Jacek Generowicz]

Thomas Heller <theller at python.net> writes:

> Jacek Generowicz <jacek.generowicz at cern.ch> writes:
> 
> > I have some code, which makes copious use of the @decorator syntax
> > which was introduced in Python2.4. Now I find myself in a situation
> > where I have to run the code under Python 2.3. However, I would like
> > to keep developing the code with the new syntax.
> >
> > How could I best automate the process of making the syntax digestible
> > by Python2.3 ?
> 
> The only way that I know of is this, although you have to rewrite your
> code somewhat:

The whole point would be to keep on developing perfectly normal
Python2.4 code, but have some means of getting it to run on 2.3,
without modification.

> http://dirtsimple.org/2004/11/using-24-decorators-with-22-and-23.html

Certainly an interesting approach. Perhaps this can be combined with a
simple textual transformation of the source code which simply replaces
@decorator with add_assignment_advisor(decorator) ... or something
along those lines.

Still, I'd prefer to find a solution on the AST level, but I guess
that's not possible without re-writing the praser.

Crazy idea ... would it be possible to shadow 2.3's parser with one
stolen from 2.4 ?