mwm at mired.org
Thu Dec 30 22:21:00 CET 2004
"Terry Reedy" <tjreedy at udel.edu> writes:
> "Mike Meyer" <mwm at mired.org> wrote in message
> news:86acrxt0e7.fsf at guru.mired.org...
>> Steve Holden <steve at holdenweb.com> writes:
>>> Well, perhaps you can explain how a change that's made at run time
>>> (calling the decorator) can affect the parser's compile time behavior,
>>> then. At the moment, IIRC, the only way Python code can affect the
>>> parser's behavior is in the __future__ module, which must be imported
>>> at the very head of a module.
>> By modifying the parsers grammer at runtime. After all, it's just a
>> data structure that's internal to the compiler.
> Given that xx.py is parsed in its entirety *before* runtime, that answer is
> no answer at all. Runtime parser changes (far, far from trivial) could
> only affect the result of exec and eval.
and import. I.e., you could do:
Mike Meyer <mwm at mired.org> http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.
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