[Python-Dev] python optimization

[Neal Becker]

One possible way to improve the situation is, that if we really believe
python cannot easily support such optimizations because the code is too
"dynamic", is to allow manual annotation of functions.  For example, gcc
has allowed such annotations using __attribute__ for quite a while.  This
would allow the programmer to specify that a variable is constant, or that
a function is pure (having no side effects).