[Python-Dev] compiler optimizations: collecting ideas

Stefan Behnel stefan_ml at behnel.de
Fri Nov 14 19:24:46 CET 2008


Steven D'Aprano wrote:
> On Sat, 15 Nov 2008 01:27:54 am Daniel Furrer wrote:
> [snip]
>> We're looking for:
>> - Hints as to which python compiler would be best to work on. (The
>> official Python compiler package seems very nice to work with
>> actually...) - If there are any requests in the area of optimization
>> that we could have a look at
> 
> Even though the PEP has been rejected, I do like the idea of optimising 
> chains of if...elif:
> 
> http://www.python.org/dev/peps/pep-0275/

As a side note: Cython does this optimisation and translates a series of
if-else statements (as well as "or" expressions) into C switch statements. The
speedup is pretty impressive at times.

Stefan



More information about the Python-Dev mailing list