[Python-Dev] Re: Magic number needs upgrade
Guido van Rossum
Tue, 22 Apr 2003 12:40:21 -0400
> Now that we have new bytecode optimizations, the pyc file magic
> number needs to be changed.
Of course we might also consider turning back Raymond's bytecode
optimizations. Given that I can't discern any speedup, I wonder what
the wisdom is of adding more code complexity.
We're still holding off on Ping and Aahz's changes (see the
cache-attr-branch) and Thomas and Brett's CALL_ATTR optimizations, for
similar reasons (inconclusive evidence of speedups in real programs).
What makes Raymond's changes different?
I also wonder why this is done unconditionally, rather than only with
--Guido van Rossum (home page: http://www.python.org/~guido/)